Data Quality Reports for Session: 115639 User: rutan Completed: 11/11/2008


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030902.1SGP/MWR/C1 - no air temperature signalsgpmwrlosC1.b1, sgpmwrtipC1.a1
D031106.2SGP/MWR/B4 - no air temperature signalsgpmwrlosB4.b1, sgpmwrtipB4.a1
D041001.3SGP/MWR/C1 - Instrument problemsgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
D041014.1SGP/MWR/C1 - thermal instabilitysgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
D041021.3SGP/MWR/B4 - Heater problemsgpmwrlosB4.b1, sgpmwrtipB4.a1
D041117.2SGP/MWR/C1 - Reprocess: wrong retrievalssgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgpqmemwrcolC1.c1
D050722.1SGP/MWR/C1 - REPROCESS - Revised Retrieval Coefficientssgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1,
sgpqmemwrcolC1.c1
D050725.2SGP/MWR/B1 - Reprocess: Revised Retrieval Coefficientssgp5mwravgB1.c1, sgpmwrlosB1.a1, sgpmwrlosB1.b1, sgpmwrtipB1.a1, sgpqmemwrcolB1.c1
D050725.3SGP/MWR/B4 - Reprocess: Revised Retrieval Coefficientssgp5mwravgB4.c1, sgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrtipB4.a1, sgpqmemwrcolB4.c1
D050725.4SGP/MWR/B5 - Reprocess: Revised Retrieval Coefficientssgp5mwravgB5.c1, sgpmwrlosB5.a1, sgpmwrlosB5.b1, sgpmwrtipB5.a1, sgpqmemwrcolB5.c1
D050822.5SGP/MWR/B1 - thermal instabilitysgpmwrlosB1.b1, sgpmwrtipB1.a1
D050822.6SGP/MWR/B1 - Reprocess: mixer temp adjustmentsgpmwrlosB1.b1, sgpmwrtipB1.a1
D050915.1SGP/MWR/C1 - Instrument noise problemsgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
D050919.6SGP/MWR/C1 - Instrument offlinesgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
D050927.2SGP/MWR/B1 - New software version (4.15) installedsgpmwrlosB1.b1, sgpmwrtipB1.a1
D050927.3SGP/MWR/B4 - New software version (4.15) installedsgpmwrlosB4.b1, sgpmwrtipB4.a1
D050927.4SGP/MWR/B5 - New software version (4.15) installedsgpmwrlosB5.b1, sgpmwrtipB5.a1
D051011.6SGP/MWR/C1 - New software version (4.15) installedsgpmwrlosC1.b1, sgpmwrtipC1.a1
D051109.1SGP/MWR/B5 - computer problemsgpmwrB5.00, sgpmwrlosB5.b1, sgpmwrtipB5.a1
D051123.1SGP/MWR/C1 - computer problemsgpmwrC1.00, sgpmwrlosC1.b1, sgpmwrtipC1.a1
D051207.3SGP/MWR/C1 - Power supply failuresgpmwrC1.00, sgpmwrlosC1.b1, sgpmwrtipC1.a1
D060420.1SGP/MWR/B4 - Reprocess: wrong retrievalssgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrtipB4.a1, sgpqmemwrcolB4.c1
D060420.3SGP/MWR/B5 - Reprocess: wrong retrievalssgpmwrlosB5.a1, sgpmwrlosB5.b1, sgpmwrtipB5.a1, sgpqmemwrcolB5.c1
D080103.2SGP/MWR/C1 - Missing datasgpmwrlosC1.b1
D080701.2SGP/MWR/B4 - Missing datasgpmwrlosB4.b1, sgpmwrtipB4.a1
D080724.1SGP/MWR/B5 - Missing datasgpmwrlosB5.b1


DQRID : D030902.1
Start DateStart TimeEnd DateEnd Time
08/22/2003211509/30/20041835
Subject:
SGP/MWR/C1 - no air temperature signal
DataStreams:sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
When the new blower was upgraded by Radiometrics and reinstalled on the MWR, the air 
temperature sensor failed to properly report. It was determined that the wires carrying the 
signal to the analog board did not conform to the standard expected by the upgraded blower. 
The problem was corrected by changing the wiring.
Measurements:sgpmwrtipC1.a1:
  • Ambient temperature(tkair)

sgpmwrlosC1.b1:
  • Ambient temperature(tkair)


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DQRID : D031106.2
Start DateStart TimeEnd DateEnd Time
10/14/2003174112/23/20042025
Subject:
SGP/MWR/B4 - no air temperature signal
DataStreams:sgpmwrlosB4.b1, sgpmwrtipB4.a1
Description:
When the new blower was upgraded by Radiometrics and reinstalled on the MWR, the air 
temperature sensor failed to properly report. It was determined that the wires carrying the 
signal to the analog board did not conform to the standard expected by the upgraded blower. 
The problem was corrected by changing the wiring and modifying the MWR software to read 
the signal from the appropriate corresponding channel.
Measurements:sgpmwrlosB4.b1:
  • Ambient temperature(tkair)

sgpmwrtipB4.a1:
  • Ambient temperature(tkair)


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DQRID : D041001.3
Start DateStart TimeEnd DateEnd Time
09/21/2004211409/24/20041354
09/26/2004233209/27/20040317
09/27/2004121409/30/20041820
Subject:
SGP/MWR/C1 - Instrument problem
DataStreams:sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
The MWR mixer temperature, blackbody temperature, and moisture flag are incorrect. This 
began when the instrument was returned to service after the analog board was temporarily 
removed to check the presence and absence of certain resistors. The board must have been 
accidently damaged during this process.
Measurements:sgpmwrtipC1.a1:
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Ambient temperature(tkair)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)

sgpmwrlosC1.b1:
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • (tknd)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Blackbody kinetic temperature(tkbb)
  • Ambient temperature(tkair)
  • Mixer kinetic (physical) temperature(tkxc)
  • Temperature correction coefficient at 23.8 GHz(tc23)

sgpmwrlosC1.a1:
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Blackbody kinetic temperature(tkbb)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • (tknd)
  • Ambient temperature(tkair)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Mixer kinetic (physical) temperature(tkxc)


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DQRID : D041014.1
Start DateStart TimeEnd DateEnd Time
09/30/2004183510/13/20042118
Subject:
SGP/MWR/C1 - thermal instability
DataStreams:sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
The analog board was replaced with a spare (D041001.3) with a reference temperature that 
was set too low (306 K) so that during periods of high ambient temperature, the instrument 
became thermally unstable. The problem was corrected when the temperature setting was 
increased (to 311 K).
Measurements:sgpmwrtipC1.a1:
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgpmwrlosC1.b1:
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • MWR column precipitable water vapor(vap)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Averaged total liquid water along LOS path(liq)

sgpmwrlosC1.a1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Sky brightness temperature at 23.8 GHz(tbsky23)


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DQRID : D041021.3
Start DateStart TimeEnd DateEnd Time
10/10/2004193011/23/20041720
Subject:
SGP/MWR/B4 - Heater problem
DataStreams:sgpmwrlosB4.b1, sgpmwrtipB4.a1
Description:
The heater does not appear to be operating properly when moisture is detected. The problem 
was corrected by adjusting the heater sensivity.
Measurements:sgpmwrlosB4.b1:
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)

sgpmwrtipB4.a1:
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)


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DQRID : D041117.2
Start DateStart TimeEnd DateEnd Time
09/21/2004164311/11/20042100
Subject:
SGP/MWR/C1 - Reprocess: wrong retrievals
DataStreams:sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgpqmemwrcolC1.c1
Description:
When the computer and core configuration were upgraded, retrieval coefficients for BF1 
were accidently included in the configuration file.
The correct coefficients for CF1 were applied when the configuration file was updated.
Measurements:sgpmwrtipC1.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgpmwrlosC1.b1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgpqmemwrcolC1.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

sgpmwrlosC1.a1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)


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DQRID : D050722.1
Start DateStart TimeEnd DateEnd Time
04/16/2002200006/28/20052300
Subject:
SGP/MWR/C1 - REPROCESS - Revised Retrieval Coefficients
DataStreams:sgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipC1.a1,
sgpqmemwrcolC1.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive the precipitable 
water vapor (PWV) and liquid water path (LWP) from the MWR brightness temperatures were 
based on the Liebe and Layton (1987) water vapor and oxygen absorption model and the Grant 
(1957) liquid water absorption model.  

Following the SHEBA experience, revised retrievals based on the more recent Rosenkranz 
(1998) water vapor and oxygen absorption models and the Liebe (1991) liquid waer absorption 
model were developed.  The Rosenkranz water vapor absorption model resulted a 2 percent 
increase in PWV relative to the earlier Liebe and Layton model.  The Liebe liquid water 
absorption model decreased the LWP by 10% relative to the Grant model.  However, the 
increased oxygen absorption caused a 0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was 
particularly significant for low LWP conditions (i.e. thin clouds encountered at SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and Clough, TGARS v. 43, 
pp 1102-1108, 2005) that the half-width of the 22 GHz water vapor line from the HITRAN 
compilation, which is 5 percent smaller than the Liebe and Dillon (1969) half-width used in 
Rosenkranz (1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more accurate retrievals.  
Accordingly, revised MWR retrieval coefficients have been developed using MONORTM, which 
utilizes the HITRAN compilation for its spectroscopic parameters.  These new retrievals 
provide 3 percent less PWV and 2.6 percent greater LWP than the previous retrievals based on 
Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based retrievals, for 
most purposes it will be sufficient to correct the data using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active as follows (BCR 456):
SGP/C1 (Lamont)     4/16/2002, 2000
SGP/B1 (Hillsboro)  4/12/2002, 1600
SGP/B4 (Vici)       4/15/2002, 2300
SGP/B5 (Morris)     4/15/2002, 2300
SGP/B6 (Purcell)    4/16/2002, 2200
SGP/E14(Lamont)     4/16/2002, 0000
NSA/C1 (Barrow)     4/25/2002, 1900 
NSA/C2 (Atqasuk)    4/18/2002, 1700
TWP/C1 (Manus)      5/04/2002, 0200
TWP/C2 (Nauru)      4/27/2002, 0600
TWP/C3 (Darwin)     inception

The MONORTM-based retrieval coefficients became active as follows (BCR 984):

SGP/C1 (Lamont)     6/28/2005, 2300
SGP/B1 (Hillsboro)  6/24/2005, 2100
SGP/B4 (Vici)       6/24/2005, 2100
SGP/B5 (Morris)     6/24/2005, 2100
SGP/B6 (Purcell)    6/24/2005, 1942
SGP/E14(Lamont)     6/28/2005, 2300
NSA/C1 (Barrow)     6/29/2005, 0000 
NSA/C2 (Atqasuk)    6/29/2005, 0000
TWP/C1 (Manus)      6/30/2005, 2100
TWP/C2 (Nauru)      6/30/2005, 2100
TWP/C3 (Darwin)     6/30/2005, 2100
PYE/M1 (Pt. Reyes)  4/08/2005, 1900**

** At Pt. Reyes, the original retrieval coefficients implemented in March 2005 were based 
on a version of the Rosenkranz model that had been modified to use the HITRAN half-width 
at 22 GHz and to be consistent with the water vapor continuum in MONORTM.  These 
retrievals yield nearly identical results to the MONORTM retrievals.  Therefore the Pt. Reyes 
data prior to 4/08/2005 may not require reprocessing.
Measurements:sgpmwrtipC1.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgp5mwravgC1.c1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgpmwrlosC1.b1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgp1mwravgC1.c1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)

sgpqmemwrcolC1.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

sgpmwrlosC1.a1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)


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DQRID : D050725.2
Start DateStart TimeEnd DateEnd Time
04/12/2002160006/24/20052100
Subject:
SGP/MWR/B1 - Reprocess: Revised Retrieval Coefficients
DataStreams:sgp5mwravgB1.c1, sgpmwrlosB1.a1, sgpmwrlosB1.b1, sgpmwrtipB1.a1, sgpqmemwrcolB1.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive the precipitable 
water vapor (PWV) and liquid water path (LWP) from the MWR brightness temperatures were 
based on the Liebe and Layton (1987) water vapor and oxygen absorption model and the Grant 
(1957) liquid water absorption model.

Following the SHEBA experience, revised retrievals based on the more recent Rosenkranz 
(1998) water vapor and oxygen absorption models and the Liebe (1991) liquid waer absorption 
model were developed.  The Rosenkranz water vapor absorption model resulted a 2 percent 
increase in PWV relative to the earlier Liebe and Layton model.  The Liebe liquid water 
absorption model decreased the LWP by 10% relative to the Grant model.  However, the 
increased oxygen absorption caused a 0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was 
particularly significant for low LWP conditions (i.e. thin clouds encountered at SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and Clough, TGARS v. 43, 
pp 1102-1108, 2005) that the half-width of the 22 GHz water vapor line from the HITRAN 
compilation, which is 5 percent smaller than the Liebe and Dillon (1969) half-width used in 
Rosenkranz (1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more accurate retrievals. 
Accordingly, revised MWR retrieval coefficients have been developed using MONORTM, which 
utilizes the HITRAN compilation for its spectroscopic parameters.  These new retrievals 
provide 3 percent less PWV and 2.6 percent greater LWP than the previous retrievals based on 
Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based retrievals, for 
most purposes it will be sufficient to correct the data using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active at SGP.B1 20020412.1600.  The 
MONORTM-based retrieval coefficients became active at SGP.B1 20050624.2100.

Note: a reprocessing effort is already underway to apply the Rosenkranz-based retrieval 
coefficients to all MWR prior to April 2002.  An additional reprocessing task will be 
undertaken to apply the MONORTM retrieval to all MWR data when the first is completed.  Read 
reprocessing comments in the netcdf file header carefully to ensure you are aware which 
retrieval is in play.
Measurements:sgpmwrlosB1.a1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgpmwrlosB1.b1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)

sgp5mwravgB1.c1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgpmwrtipB1.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgpqmemwrcolB1.c1:
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)


Back To Table of Contents

DQRID : D050725.3
Start DateStart TimeEnd DateEnd Time
04/15/2002230006/24/20052100
Subject:
SGP/MWR/B4 - Reprocess: Revised Retrieval Coefficients
DataStreams:sgp5mwravgB4.c1, sgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrtipB4.a1, sgpqmemwrcolB4.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive the precipitable 
water vapor (PWV) and liquid water path (LWP) from the MWR brightness temperatures were 
based on the Liebe and Layton (1987) water vapor and oxygen absorption model and the Grant 
(1957) liquid water absorption model.

Following the SHEBA experience, revised retrievals based on the more recent Rosenkranz 
(1998) water vapor and oxygen absorption models and the Liebe (1991) liquid waer absorption 
model were developed.  The Rosenkranz water vapor absorption model resulted a 2 percent 
increase in PWV relative to the earlier Liebe and Layton model.  The Liebe liquid water 
absorption model decreased the LWP by 10% relative to the Grant model.  However, the 
increased oxygen absorption caused a 0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was 
particularly significant for low LWP conditions (i.e. thin clouds encountered at SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and Clough, TGARS v. 43, 
pp 1102-1108, 2005) that the half-width of the 22 GHz water vapor line from the HITRAN 
compilation, which is 5 percent smaller than the Liebe and Dillon (1969) half-width used in 
Rosenkranz (1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more accurate retrievals. 
Accordingly, revised MWR retrieval coefficients have been developed using MONORTM, which 
utilizes the HITRAN compilation for its spectroscopic parameters.  These new retrievals 
provide 3 percent less PWV and 2.6 percent greater LWP than the previous retrievals based on 
Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based retrievals, for 
most purposes it will be sufficient to correct the data using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active at SGP.B4 20020415.2300.  The 
MONORTM-based retrieval coefficients became active at SGP.B4 20050624.2100.

Note: a reprocessing effort is already underway to apply the Rosenkranz-based retrieval 
coefficients to all MWR prior to April 2002.  An additional reprocessing task will be 
undertaken to apply the MONORTM retrieval to all MWR data when the first is completed. Read 
reprocessing comments in the netcdf file header carefully to ensure you are aware which 
retrieval is in play.
Measurements:sgpmwrlosB4.b1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)

sgpmwrtipB4.a1:
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)

sgpqmemwrcolB4.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

sgp5mwravgB4.c1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)

sgpmwrlosB4.a1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)


Back To Table of Contents

DQRID : D050725.4
Start DateStart TimeEnd DateEnd Time
04/15/2002230006/24/20052100
Subject:
SGP/MWR/B5 - Reprocess: Revised Retrieval Coefficients
DataStreams:sgp5mwravgB5.c1, sgpmwrlosB5.a1, sgpmwrlosB5.b1, sgpmwrtipB5.a1, sgpqmemwrcolB5.c1
Description:
IN THE BEGINNING (June 1992), the retrieval coefficients used to derive 
the precipitable water vapor (PWV) and liquid water path (LWP) from the 
MWR brightness temperatures were based on the Liebe and Layton (1987) 
water vapor and oxygen absorption model and the Grant (1957) liquid 
water absorption model.

Following the SHEBA experience, revised retrievals based on the more 
recent Rosenkranz (1998) water vapor and oxygen absorption models and 
the Liebe (1991) liquid waer absorption model were developed.  The 
Rosenkranz water vapor absorption model resulted a 2 percent increase 
in PWV relative to the earlier Liebe and Layton model.  The Liebe 
liquid water absorption model decreased the LWP by 10% relative to the 
Grant model.  However, the increased oxygen absorption caused a 
0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was particularly 
significant for low LWP conditions (i.e. thin clouds encountered at 
SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and 
Clough, TGARS v. 43, pp 1102-1108, 2005) that the half-width of the 
22 GHz water vapor line from the HITRAN compilation, which is 5 percent 
smaller than the Liebe and Dillon (1969) half-width used in Rosenkranz 
(1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more 
accurate retrievals. Accordingly, revised MWR retrieval coefficients 
have been developed using MONORTM, which utilizes the HITRAN compilation 
for its spectroscopic parameters.  These new retrievals provide 3 
percent less PWV and 2.6 percent greater LWP than the previous 
retrievals based on Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based 
retrievals, for most purposes it will be sufficient to correct the data 
using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active at SGP.B5 
20020415.2300.  The MONORTM-based retrieval coefficients became active 
at SGP.B5 20050624.2100.

Note: a reprocessing effort is already underway to apply the 
Rosenkranz-based retrieval coefficients to all MWR prior to April 
2002.  An additional reprocessing task will be undertaken to apply 
the MONORTM retrieval to all MWR data when the first is completed. 
Read reprocessing comments in the netcdf file header carefully to 
ensure you are aware which retrieval is in play.
Measurements:sgpmwrlosB5.a1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgpmwrtipB5.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgpqmemwrcolB5.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

sgp5mwravgB5.c1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgpmwrlosB5.b1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)


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DQRID : D050822.5
Start DateStart TimeEnd DateEnd Time
07/20/2005180008/05/20051935
Subject:
SGP/MWR/B1 - thermal instability
DataStreams:sgpmwrlosB1.b1, sgpmwrtipB1.a1
Description:
During periods of high ambient temperature, the instrument may have been thermally 
unstable. The problem was corrected by increasing the RF deck temperature from 50 to 52 C.
Measurements:sgpmwrlosB1.b1:
  • Averaged total liquid water along LOS path(liq)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • MWR column precipitable water vapor(vap)
  • Sky brightness temperature at 23.8 GHz(tbsky23)

sgpmwrtipB1.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)


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DQRID : D050822.6
Start DateStart TimeEnd DateEnd Time
08/05/2005200408/07/20050555
Subject:
SGP/MWR/B1 - Reprocess: mixer temp adjustment
DataStreams:sgpmwrlosB1.b1, sgpmwrtipB1.a1
Description:
The RF deck temperature was increased from 50 to 52 C to prevent thermal instability in 
summer.  This resulted in a change in the calibration.  The data need to be reprocessed 
with the calibration coefficients that were automatically derived after the reference 
temperature, tkmx, was adjusted.
Measurements:sgpmwrtipB1.a1:
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)

sgpmwrlosB1.b1:
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Averaged total liquid water along LOS path(liq)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • MWR column precipitable water vapor(vap)


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DQRID : D050915.1
Start DateStart TimeEnd DateEnd Time
07/28/2005140008/05/20051700
Subject:
SGP/MWR/C1 - Instrument noise problem
DataStreams:sgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
Various variables including the mixer temperatures were very noisy. After several attempts 
to fix the problem, the instrument was taken off line and returned to the manufacturer 
for repair.
Measurements:sgpmwrtipC1.a1:
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Ambient temperature(tkair)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(tipsky23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • 23.8 GHz goodness-of-fit coefficient(r23)

sgp5mwravgC1.c1:
  • Flag indicating where the initial surface water measurements are from: 0-> SMOS,
    1-> AERI(water_flag)
  • Fraction of data in averaging interval with water on Teflon window(water_flag_fraction)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
  • Number of data points averaged out of 15(number_obs_averaged)
  • Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
  • Standard deviation about the mean for the total water vapor amount(vap_sdev)
  • Averaged total liquid water along LOS path(liq)
  • IR Brightness Temperature(ir_temp)
  • Probability of level change in ratio of averaged brightness temps(prob_level_change)
  • Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
  • Probability of slope change in ratio of averaged brightness temps(prob_slope_change)
  • Probability of outlier in ratio of averaged brightness temps(prob_outlier)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • Standard deviation about the mean for the total liquid water amount(liq_sdev)
  • MWR column precipitable water vapor(vap)

sgpmwrlosC1.b1:
  • 31.4 GHz sky signal(sky31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(sky23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Averaged total liquid water along LOS path(liq)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz blackbody(bb31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Blackbody kinetic temperature(tkbb)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • MWR column precipitable water vapor(vap)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Mixer kinetic (physical) temperature(tkxc)
  • (tknd)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Temperature correction coefficient at 23.8 GHz(tc23)

sgp1mwravgC1.c1:
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Fraction of data in averaging interval flagged by Dynamic Linear Model as poten(dlm_flag_fraction)
  • Standard deviation about the mean for the total water vapor amount(vap_sdev)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
  • IR Brightness Temperature(ir_temp)
  • MWR column precipitable water vapor(vap)
  • Number of contiguous periods in averaging interval flagged by Dynamic Linear Mo(dlm_flag_periods)
  • Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
  • Standard deviation about the mean for the total liquid water amount(liq_sdev)
  • Number of contiguous periods in averaging interval with water on Teflon window(water_flag_periods)
  • Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
  • Fraction of data in averaging interval with water on Teflon window(water_flag_fraction)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • Averaged total liquid water along LOS path(liq)
  • Sky brightness temperature at 31.4 GHz(tbsky31)


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DQRID : D050919.6
Start DateStart TimeEnd DateEnd Time
08/05/2005170108/30/20052100
Subject:
SGP/MWR/C1 - Instrument offline
DataStreams:sgp1mwravgC1.c1, sgp5mwravgC1.c1, sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
Instrument was taken offline and returned to manufacturer for repair.  Data are missing 
and unrecoverable.
Measurements:sgpmwrtipC1.a1:
  • 31.4 GHz blackbody(bb31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Actual elevation angle(actel)
  • Blackbody kinetic temperature(tkbb)
  • Ambient temperature(tkair)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz sky signal(tipsky31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(tipsky23)
  • Time offset of tweaks from base_time(time_offset)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 23.8 GHz Blackbody signal(bb23)
  • lat(lat)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Dummy altitude for Zeb(alt)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Actual Azimuth(actaz)
  • base time(base_time)
  • lon(lon)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • 23.8 GHz goodness-of-fit coefficient(r23)

sgp5mwravgC1.c1:
  • Flag indicating where the initial surface water measurements are from: 0-> SMOS,
    1-> AERI(water_flag)
  • Fraction of data in averaging interval with water on Teflon window(water_flag_fraction)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
  • Standard deviation about the mean for the total water vapor amount(vap_sdev)
  • IR Brightness Temperature(ir_temp)
  • Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
  • Probability of slope change in ratio of averaged brightness temps(prob_slope_change)
  • Number of points included in the ir_temp ensemble(num_obs_irt)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • Standard deviation about the mean for the total liquid water amount(liq_sdev)
  • MWR column precipitable water vapor(vap)
  • Dummy altitude for Zeb(alt)
  • lat(lat)
  • Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
  • Number of data points averaged out of 15(number_obs_averaged)
  • base time(base_time)
  • Averaged total liquid water along LOS path(liq)
  • Probability of level change in ratio of averaged brightness temps(prob_level_change)
  • lon(lon)
  • Number of data points averaged for 23tbsky, 31tbsky, vap & liq(num_obs)
  • Probability of outlier in ratio of averaged brightness temps(prob_outlier)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Time offset of tweaks from base_time(time_offset)

sgpmwrlosC1.b1:
  • 31.4 GHz sky signal(sky31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • lon(lon)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • MWR column precipitable water vapor(vap)
  • 23.8 GHz Blackbody signal(bb23)
  • Time offset of tweaks from base_time(time_offset)
  • (tknd)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Dummy altitude for Zeb(alt)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • 23.8 GHz sky signal(sky23)
  • Averaged total liquid water along LOS path(liq)
  • 31.4 GHz blackbody(bb31)
  • Blackbody kinetic temperature(tkbb)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Ambient temperature(tkair)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Mixer kinetic (physical) temperature(tkxc)
  • base time(base_time)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • lat(lat)

sgp1mwravgC1.c1:
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Fraction of data in averaging interval flagged by Dynamic Linear Model as poten(dlm_flag_fraction)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
  • IR Brightness Temperature(ir_temp)
  • MWR column precipitable water vapor(vap)
  • Time offset of tweaks from base_time(time_offset)
  • Number of contiguous periods in averaging interval flagged by Dynamic Linear Mo(dlm_flag_periods)
  • lat(lat)
  • lon(lon)
  • base time(base_time)
  • Number of points included in the ir_temp ensemble(num_obs_irt)
  • Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
  • Dummy altitude for Zeb(alt)
  • Averaged total liquid water along LOS path(liq)
  • Standard deviation about the mean for the total water vapor amount(vap_sdev)
  • Number of data points averaged for 23tbsky, 31tbsky, vap & liq(num_obs)
  • Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
  • Standard deviation about the mean for the total liquid water amount(liq_sdev)
  • Number of data points averaged for ir_temp(num_obs_ir)
  • Number of contiguous periods in averaging interval with water on Teflon window(water_flag_periods)
  • Fraction of data in averaging interval with water on Teflon window(water_flag_fraction)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • Sky brightness temperature at 31.4 GHz(tbsky31)


Back To Table of Contents

DQRID : D050927.2
Start DateStart TimeEnd DateEnd Time
07/16/2002220009/13/20051806
Subject:
SGP/MWR/B1 - New software version (4.15) installed
DataStreams:sgpmwrlosB1.b1, sgpmwrtipB1.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in July 2002. The software 
had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one that 
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip 
curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these 
problems.

The new MWR software, version 4.15, was installed on 9/13/2005 at 21:25. As a consequence 
of this upgrade, the tip curve frequency increased. The tip cycle time decreased from 
~60s to ~50s.
Measurements:sgpmwrtipB1.a1:
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz sky signal(tipsky23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 23.8 GHz Blackbody signal(bb23)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • 31.4 GHz blackbody(bb31)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • (tknd)
  • Ambient temperature(tkair)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz sky signal(tipsky31)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.4 GHz blac2body+noise injection signal(bbn31)

sgpmwrlosB1.b1:
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Ambient temperature(tkair)
  • IR Brightness Temperature(ir_temp)
  • 23.8 GHz sky signal(sky23)
  • Averaged total liquid water along LOS path(liq)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz sky signal(sky31)
  • (tknd)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 31.4 GHz blackbody(bb31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Blackbody kinetic temperature(tkbb)
  • MWR column precipitable water vapor(vap)
  • 23.8 GHz Blackbody signal(bb23)


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DQRID : D050927.3
Start DateStart TimeEnd DateEnd Time
07/09/2002170009/13/20052121
Subject:
SGP/MWR/B4 - New software version (4.15) installed
DataStreams:sgpmwrlosB4.b1, sgpmwrtipB4.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in July 2002. The software 
had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one that 
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip 
curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these 
problems.

The new MWR software, version 4.15, was installed on 9/13/2005. As a consequence of this 
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s.
Measurements:sgpmwrlosB4.b1:
  • Averaged total liquid water along LOS path(liq)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz blackbody(bb31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Ambient temperature(tkair)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz sky signal(sky23)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • MWR column precipitable water vapor(vap)
  • IR Brightness Temperature(ir_temp)
  • 31.4 GHz sky signal(sky31)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 23.8 GHz Blackbody signal(bb23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mixer kinetic (physical) temperature(tkxc)

sgpmwrtipB4.a1:
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz Blackbody signal(bb23)
  • (tknd)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz sky signal(tipsky23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Ambient temperature(tkair)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.4 GHz sky signal(tipsky31)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)


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DQRID : D050927.4
Start DateStart TimeEnd DateEnd Time
07/10/2002170009/13/20052124
Subject:
SGP/MWR/B5 - New software version (4.15) installed
DataStreams:sgpmwrlosB5.b1, sgpmwrtipB5.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in July 2002. The software 
had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one that 
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip 
curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these 
problems.

The new MWR software, version 4.15, was installed on 9/13/2005. As a consequence of this 
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s.
Measurements:sgpmwrtipB5.a1:
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz sky signal(tipsky31)
  • Blackbody kinetic temperature(tkbb)
  • (tknd)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Ambient temperature(tkair)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • 23.8 GHz sky signal(tipsky23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)

sgpmwrlosB5.b1:
  • Mixer kinetic (physical) temperature(tkxc)
  • Ambient temperature(tkair)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 23.8 GHz sky signal(sky23)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.4 GHz blackbody(bb31)
  • MWR column precipitable water vapor(vap)
  • (tknd)
  • IR Brightness Temperature(ir_temp)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Averaged total liquid water along LOS path(liq)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz sky signal(sky31)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)


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DQRID : D051011.6
Start DateStart TimeEnd DateEnd Time
07/31/2002202708/04/20051959
Subject:
SGP/MWR/C1 - New software version (4.15) installed
DataStreams:sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in July 2002. The software 
had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one that 
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip 
curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these 
problems.

The new MWR software, version 4.15, was installed on 08/04/2005. As a consequence of this 
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to 
~50s.
Measurements:sgpmwrtipC1.a1:
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • (tknd)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 23.8 GHz Blackbody signal(bb23)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(tipsky23)
  • Ambient temperature(tkair)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • 23.8 GHz goodness-of-fit coefficient(r23)

sgpmwrlosC1.b1:
  • 31.4 GHz sky signal(sky31)
  • (tknd)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 23.8 GHz sky signal(sky23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Averaged total liquid water along LOS path(liq)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz blackbody(bb31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Blackbody kinetic temperature(tkbb)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • MWR column precipitable water vapor(vap)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Temperature correction coefficient at 23.8 GHz(tc23)


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DQRID : D051109.1
Start DateStart TimeEnd DateEnd Time
11/02/2005000012/12/20050000
Subject:
SGP/MWR/B5 - computer problem
DataStreams:sgpmwrB5.00, sgpmwrlosB5.b1, sgpmwrtipB5.a1
Description:
The computer motherboard failed and attempts to replace failed. A new computer was 
installed on 12/09. The new computer started to collect data continuously on 12/12.
Measurements:sgpmwrtipB5.a1:
  • Actual Azimuth(actaz)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Ambient temperature(tkair)
  • 23.8 GHz sky signal(tipsky23)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • lat(lat)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz sky signal(tipsky31)
  • (tknd)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mixer kinetic (physical) temperature(tkxc)
  • lon(lon)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • Actual elevation angle(actel)
  • Time offset of tweaks from base_time(time_offset)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • base time(base_time)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Dummy altitude for Zeb(alt)

sgpmwrB5.00:
  • null(Raw data stream - documentation not supported)

sgpmwrlosB5.b1:
  • Mixer kinetic (physical) temperature(tkxc)
  • Ambient temperature(tkair)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Time offset of tweaks from base_time(time_offset)
  • Blackbody kinetic temperature(tkbb)
  • IR Brightness Temperature(ir_temp)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Averaged total liquid water along LOS path(liq)
  • lat(lat)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Dummy altitude for Zeb(alt)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • base time(base_time)
  • 23.8 GHz sky signal(sky23)
  • MWR column precipitable water vapor(vap)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • (tknd)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • lon(lon)
  • 31.4 GHz sky signal(sky31)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz Blackbody signal(bb23)


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DQRID : D051123.1
Start DateStart TimeEnd DateEnd Time
11/16/2005000011/29/20050000
Subject:
SGP/MWR/C1 - computer problem
DataStreams:sgpmwrC1.00, sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
The computer motherboard failed. The replacement motherboard sent by dell did not work. 
A new computer was installed on 11/28. Operations of the radiometer resumed on 11/29
Measurements:sgpmwrtipC1.a1:
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Actual elevation angle(actel)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • lat(lat)
  • Ambient temperature(tkair)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Dummy altitude for Zeb(alt)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Actual Azimuth(actaz)
  • base time(base_time)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • lon(lon)
  • 23.8 GHz sky signal(tipsky23)
  • Time offset of tweaks from base_time(time_offset)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • 23.8 GHz goodness-of-fit coefficient(r23)

sgpmwrlosC1.b1:
  • 31.4 GHz sky signal(sky31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Dummy altitude for Zeb(alt)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(sky23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • lon(lon)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Averaged total liquid water along LOS path(liq)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Blackbody kinetic temperature(tkbb)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • MWR column precipitable water vapor(vap)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Time offset of tweaks from base_time(time_offset)
  • base time(base_time)
  • (tknd)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • lat(lat)

sgpmwrC1.00:
  • null(Raw data stream - documentation not supported)


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DQRID : D051207.3
Start DateStart TimeEnd DateEnd Time
10/08/2005000011/16/20050000
Subject:
SGP/MWR/C1 - Power supply failure
DataStreams:sgpmwrC1.00, sgpmwrlosC1.b1, sgpmwrtipC1.a1
Description:
On 10/08 a power supply failure caused a catastrophic failure of the power supply board. 
The instrument had to be shipped to the vendor for repair. The instrument was returned on 
11/15 and re-installed on 11/16.
Measurements:sgpmwrtipC1.a1:
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Actual elevation angle(actel)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • lat(lat)
  • Ambient temperature(tkair)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Dummy altitude for Zeb(alt)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Actual Azimuth(actaz)
  • base time(base_time)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • lon(lon)
  • 23.8 GHz sky signal(tipsky23)
  • Time offset of tweaks from base_time(time_offset)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • 23.8 GHz goodness-of-fit coefficient(r23)

sgpmwrlosC1.b1:
  • 31.4 GHz sky signal(sky31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Dummy altitude for Zeb(alt)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(sky23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • lon(lon)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Averaged total liquid water along LOS path(liq)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Blackbody kinetic temperature(tkbb)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • MWR column precipitable water vapor(vap)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Time offset of tweaks from base_time(time_offset)
  • base time(base_time)
  • (tknd)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • lat(lat)

sgpmwrC1.00:
  • null(Raw data stream - documentation not supported)


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DQRID : D060420.1
Start DateStart TimeEnd DateEnd Time
09/28/2004172911/23/20041713
Subject:
SGP/MWR/B4 - Reprocess: wrong retrievals
DataStreams:sgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrtipB4.a1, sgpqmemwrcolB4.c1
Description:
When the computer and core configuration were upgraded, retrieval coefficients for BF1 
were accidently included in the configuration file.
The correct coefficients for BF4 were applied when the software was upgraded to ver. 4.14 
and the configuration file was updated.
Measurements:sgpmwrlosB4.b1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)

sgpmwrtipB4.a1:
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)

sgpqmemwrcolB4.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

sgpmwrlosB4.a1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)


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DQRID : D060420.3
Start DateStart TimeEnd DateEnd Time
10/12/2004172511/12/20041903
Subject:
SGP/MWR/B5 - Reprocess: wrong retrievals
DataStreams:sgpmwrlosB5.a1, sgpmwrlosB5.b1, sgpmwrtipB5.a1, sgpqmemwrcolB5.c1
Description:
When the computer and core configuration were upgraded, retrieval coefficients for BF1 
were accidently included in the configuration file.
The correct coefficients for BF5 were applied when the software was upgraded to ver. 4.14 
and the configuration file was updated.
Measurements:sgpmwrlosB5.a1:
  • MWR column precipitable water vapor(vap)
  • Averaged total liquid water along LOS path(liq)

sgpmwrtipB5.a1:
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

sgpqmemwrcolB5.c1:
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

sgpmwrlosB5.b1:
  • Averaged total liquid water along LOS path(liq)
  • MWR column precipitable water vapor(vap)


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DQRID : D080103.2
Start DateStart TimeEnd DateEnd Time
07/21/1993180907/23/19931541
08/07/1993214308/09/19931308
08/14/1993223308/16/19931300
08/29/1993120708/31/19931206
09/17/1993215809/20/19931311
10/02/1993161210/04/19931338
10/09/1993074110/11/19931319
11/12/1993120711/15/19931413
11/19/1993202711/21/19931957
12/14/1993230003/21/19941759
03/28/1994145903/30/19942225
05/16/1994190005/19/19942018
06/22/1994160007/11/19941859
07/16/1994030007/19/19942006
09/03/1994164709/05/19941341
09/09/1994232509/11/19941543
12/17/1994004912/19/19941441
01/05/1995000001/05/19952359
01/28/1995005401/30/19951443
04/01/1995000004/03/19951610
05/09/1995220005/11/19952350
06/24/1995090306/26/19950159
07/07/1995162507/10/19951409
07/19/1995174107/21/19951906
07/28/1995190007/31/19951918
08/22/1995161608/25/19952359
12/01/1995143401/11/19962214
01/12/1996200001/23/19962030
01/23/1996233202/08/19962359
08/06/1996000008/06/19962359
09/04/1996191009/08/19962359
09/14/1996070009/16/19961759
09/30/1996000009/30/19962359
12/01/1996000012/01/19962359
07/01/1997000007/01/19972359
02/20/1998233902/22/19980042
05/04/1998000005/04/19982359
07/18/1998033707/20/19981355
09/28/1998000009/28/19982359
10/10/1998235910/12/19981959
10/17/1998170510/19/19981535
12/25/1998223312/28/19982026
02/06/1999123502/08/19991652
03/13/1999204803/15/19992040
07/23/1999205907/26/19991408
12/04/1999080012/06/19991821
01/07/2000144602/02/20002224
05/24/2000145505/31/20001505
06/06/2000162006/14/20001451
09/01/2000220009/05/20001526
09/15/2000205709/18/20001339
09/23/2000123609/25/20001430
01/13/2001201101/16/20011647
02/24/2001023002/26/20011508
03/03/2001070103/05/20011546
03/10/2001070203/12/20011535
03/17/2001070203/19/20011422
03/24/2001070303/26/20011516
03/30/2001203804/02/20011423
05/05/2001104205/07/20011514
05/18/2001153405/21/20011451
06/22/2001220006/25/20011438
06/30/2001061607/02/20011435
07/28/2001194407/30/20011357
08/24/2001134808/27/20011751
09/07/2001184209/10/20011439
09/15/2001153309/17/20011459
10/13/2001003310/15/20011526
11/03/2001084011/05/20011613
11/10/2001055811/13/20011518
11/16/2001170111/19/20011706
12/21/2001215312/24/20011442
01/30/2002084502/11/20021632
03/02/2002033903/04/20021533
03/09/2002034003/11/20021621
06/26/2002163906/28/20022057
09/01/2002100209/03/20021332
12/21/2002112412/23/20021510
01/04/2003070301/06/20031529
08/09/2003003708/11/20031456
08/23/2003210108/25/20031456
10/12/2003202510/14/20031414
11/29/2003184012/01/20031502
01/24/2004074301/26/20041505
02/14/2004231602/17/20041520
09/04/2004025009/07/20041419
10/09/2004074510/11/20041739
10/16/2004225010/18/20041355
11/13/2004184911/15/20041521
12/03/2004194012/06/20041454
01/15/2005065201/18/20051446
01/22/2005144901/24/20051444
06/10/2005211806/13/20051603
08/05/2005170108/30/20052001
10/07/2005165811/16/20051945
11/18/2005180111/21/20051521
11/23/2005220111/25/20051550
11/26/2005010111/28/20051543
12/03/2005104312/05/20051559
01/14/2006182201/17/20061512
01/21/2006070801/23/20061515
02/03/2006190302/06/20061533
02/25/2006073002/27/20061420
07/01/2006222507/03/20061413
11/28/2006214312/01/20061911
06/09/2007115006/11/20071300
07/07/2007164207/09/20071304
08/03/2007160111/19/20072135
12/22/2007211212/24/20071504
05/25/2008181505/27/20081335
06/06/2008151206/09/20080238
Subject:
SGP/MWR/C1 - Missing data
DataStreams:sgpmwrlosC1.b1
Description:
Data are missing and unrecoverable.
Measurements:sgpmwrlosC1.b1:
  • 31.4 GHz sky signal(sky31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Dummy altitude for Zeb(alt)
  • (tknd)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 23.8 GHz sky signal(sky23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • lon(lon)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Averaged total liquid water along LOS path(liq)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Blackbody kinetic temperature(tkbb)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • MWR column precipitable water vapor(vap)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • lat(lat)
  • Time offset of tweaks from base_time(time_offset)
  • base time(base_time)


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DQRID : D080701.2
Start DateStart TimeEnd DateEnd Time
07/24/1999200007/26/19991651
07/30/1999210008/01/19991452
06/01/2000183906/05/20001800
07/03/2000223907/05/20001651
08/05/2000173608/07/20001857
08/09/2000130009/19/20001808
09/23/2000043609/25/20001257
12/31/2000164501/02/20011700
07/13/2001155007/16/20011515
01/31/2002004702/05/20021657
12/14/2002070012/20/20021719
03/04/2003173503/07/20031708
06/06/2003004606/09/20031703
09/23/2003194809/25/20031842
10/09/2003222410/14/20031741
12/15/2003113012/18/20031716
05/23/2004200305/25/20041729
12/24/2004071812/27/20041435
06/18/2005152106/20/20051304
09/30/2005040510/03/20051359
10/07/2005231310/11/20051400
10/12/2005004110/14/20051318
10/14/2005134410/28/20051537
10/28/2005235610/31/20051756
11/05/2005021411/07/20051529
11/17/2005151706/11/20071855
05/27/2008042906/03/20081714
Subject:
SGP/MWR/B4 - Missing data
DataStreams:sgpmwrlosB4.b1, sgpmwrtipB4.a1
Description:
Data are missing and unrecoverable.
Measurements:sgpmwrlosB4.b1:
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Dummy altitude for Zeb(alt)
  • Time offset of tweaks from base_time(time_offset)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • lon(lon)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Blackbody kinetic temperature(tkbb)
  • MWR column precipitable water vapor(vap)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • 31.4 GHz sky signal(sky31)
  • IR Brightness Temperature(ir_temp)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 23.8 GHz Blackbody signal(bb23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mixer kinetic (physical) temperature(tkxc)
  • lat(lat)
  • Averaged total liquid water along LOS path(liq)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • 31.4 GHz blackbody(bb31)
  • Ambient temperature(tkair)
  • (tknd)
  • 23.8 GHz sky signal(sky23)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • base time(base_time)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)

sgpmwrtipB4.a1:
  • Mixer kinetic (physical) temperature(tkxc)
  • (tknd)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Blackbody kinetic temperature(tkbb)
  • Actual Azimuth(actaz)
  • 23.8 GHz sky signal(tipsky23)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.4 GHz sky signal(tipsky31)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • lat(lat)
  • 23.8 GHz Blackbody signal(bb23)
  • Dummy altitude for Zeb(alt)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Actual elevation angle(actel)
  • Time offset of tweaks from base_time(time_offset)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 31.4 GHz blackbody(bb31)
  • base time(base_time)
  • lon(lon)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Ambient temperature(tkair)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)


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DQRID : D080724.1
Start DateStart TimeEnd DateEnd Time
03/28/1998195904/08/19981626
07/07/1998195907/15/19981823
07/18/1998190007/29/19981944
09/04/1998185909/09/19981848
12/15/1998215312/17/19981926
01/17/1999054901/19/19991829
06/23/1999142906/25/19991945
07/23/1999190007/27/19991537
07/27/1999175907/29/19992153
07/30/1999190008/01/19991453
09/11/1999061609/13/19991456
09/13/1999170009/15/19992130
09/17/1999130310/27/19991716
02/18/2000170002/21/20001522
09/01/2000200009/05/20001636
12/26/2000234301/02/20011713
01/12/2001190001/15/20011542
11/10/2001195711/12/20011629
01/27/2003141301/31/20031734
03/03/2003113003/05/20031904
06/14/2003222906/19/20031548
08/18/2003113108/20/20031700
10/08/2003070310/10/20031545
10/10/2003162410/15/20031622
10/15/2003170010/17/20031618
12/24/2003234112/26/20031741
02/16/2004113102/18/20041844
03/31/2004191705/07/20041703
09/13/2004113009/15/20041559
11/13/2004203211/15/20041757
11/24/2004183411/26/20041729
12/04/2004134412/06/20041846
12/25/2004182512/27/20041434
07/09/2005111407/11/20051313
10/24/2005104310/26/20051623
11/01/2005091111/09/20051946
11/10/2005035611/23/20051440
11/29/2005092412/06/20051749
12/06/2005210012/09/20051736
12/09/2005233312/12/20051429
08/21/2006180006/11/20071953
09/02/2007145109/07/20071540
09/14/2007154609/17/20071811
09/18/2007052509/26/20071320
10/05/2007033110/09/20071549
11/03/2007234511/05/20071620
11/10/2007000911/13/20071725
11/17/2007234511/19/20071411
11/21/2007190012/06/20072100
12/06/2007212012/13/20071836
01/19/2008102401/23/20081438
04/15/2008130404/17/20081312
04/19/2008011604/21/20081310
05/31/2008180906/04/20081915
Subject:
SGP/MWR/B5 - Missing data
DataStreams:sgpmwrlosB5.b1
Description:
Data are missing and unrecoverable.
Measurements:sgpmwrlosB5.b1:
  • base time(base_time)
  • Mixer kinetic (physical) temperature(tkxc)
  • Ambient temperature(tkair)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Time offset of tweaks from base_time(time_offset)
  • 23.8 GHz sky signal(sky23)
  • Blackbody kinetic temperature(tkbb)
  • 31.4 GHz blackbody(bb31)
  • MWR column precipitable water vapor(vap)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • (tknd)
  • IR Brightness Temperature(ir_temp)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Averaged total liquid water along LOS path(liq)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • lat(lat)
  • lon(lon)
  • 31.4 GHz sky signal(sky31)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz Blackbody signal(bb23)
  • Dummy altitude for Zeb(alt)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)


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END OF DATA