Data Quality Reports for Session: 127905 User: tami1toto Completed: 05/20/2010

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D980126.1Incorrect radiosonde serial numberssgpsondewrpnB1.a0, sgpsondewrpnB1.a1, sgpsondewrpnB4.a0, sgpsondewrpnB4.a1,
sgpsondewrpnB5.a0, sgpsondewrpnB5.a1, sgpsondewrpnB6.a0, sgpsondewrpnB6.a1, sgpsondewrpnC1.a0,
sgpsondewrpnC1.a1
D990124.2SGP/SONDE - Dry bias in sonde RHDsgpsondeB1.00, DsgpsondeB1.a0, DsgpsondeB1.a1, DsgpsondeB4.00, DsgpsondeB4.a0,
DsgpsondeB4.a1, DsgpsondeB5.00, DsgpsondeB5.a0, DsgpsondeB5.a1, DsgpsondeC1.00, DsgpsondeC1.a0,
DsgpsondeC1.a1, DsgpsondenogcptucalcB1.c1, DsgpsondenogcptucalcB4.c1,
DsgpsondenogcptucalcB5.c1, DsgpsondenogcptucalcC1.c1, DsgpsondenogcwrpnB1.c1, DsgpsondenogcwrpnB4.c1,
DsgpsondenogcwrpnB5.c1, DsgpsondenogcwrpnC1.c1, DsgpsondeptuB1.00, DsgpsondeptuB4.00,
DsgpsondeptuB5.00, DsgpsondeptuB6.00, DsgpsondeptuC1.00, DsgpsondeptucalcB1.c1,
DsgpsondeptucalcB4.c1, DsgpsondeptucalcB5.c1, DsgpsondeptucalcC1.c1, sgpsondeB1.00,
sgpsondeB1.a0, sgpsondeB1.a1, sgpsondeB4.00, sgpsondeB4.a0, sgpsondeB4.a1, sgpsondeB5.00,
sgpsondeB5.a0, sgpsondeB5.a1, sgpsondeB6.00, sgpsondeC1.00, sgpsondeC1.a0, sgpsondeC1.a1,
sgpsondeptuC1.00, sgpsondewnpnB1.a0, sgpsondewnpnB1.a1, sgpsondewnpnB4.a0,
sgpsondewnpnB4.a1, sgpsondewnpnB5.a0, sgpsondewnpnB5.a1, sgpsondewnpnB6.a0, sgpsondewnpnB6.a1,
sgpsondewnpnC1.a0, sgpsondewnpnC1.a1, sgpsondewnprC1.a0, sgpsondewnprC1.a1,
sgpsondewrpnB1.00, sgpsondewrpnB1.a0, sgpsondewrpnB1.a1, sgpsondewrpnB4.00, sgpsondewrpnB4.a0,
sgpsondewrpnB4.a1, sgpsondewrpnB5.00, sgpsondewrpnB5.a0, sgpsondewrpnB5.a1,
sgpsondewrpnB6.00, sgpsondewrpnB6.a0, sgpsondewrpnB6.a1, sgpsondewrpnC1.00, sgpsondewrpnC1.a0,
sgpsondewrpnC1.a1, sgpsondewrprB1.00, sgpsondewrprB1.a0, sgpsondewrprB1.a1,
sgpsondewrprB4.00, sgpsondewrprB4.a0, sgpsondewrprB4.a1, sgpsondewrprB5.00, sgpsondewrprB5.a0,
sgpsondewrprB5.a1, sgpsondewrprC1.00, sgpsondewrprC1.a0, sgpsondewrprC1.a1
D990210.1SGP/SONDE - Wrong cal tapesgpsondewndcalcC1.c1, sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
D990303.1SGP/SONDE - Pressure jump at launchsgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
D990329.1Incorrect surface RHsgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
D990513.1SGP/SONDE - RH probably biased low in several soundingssgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
D991221.1SGP/SONDE - Incorrect surface temperaturesgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
D991228.1SGP/SONDE - Incorrect surface temperaturesgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1


DQRID : D980126.1
Start DateStart TimeEnd DateEnd Time
01/01/1998000012/31/19992359
Subject:
Incorrect radiosonde serial numbers
DataStreams:sgpsondewrpnB1.a0, sgpsondewrpnB1.a1, sgpsondewrpnB4.a0, sgpsondewrpnB4.a1,
sgpsondewrpnB5.a0, sgpsondewrpnB5.a1, sgpsondewrpnB6.a0, sgpsondewrpnB6.a1, sgpsondewrpnC1.a0,
sgpsondewrpnC1.a1
Description:
Radiosondes manufactured at Vaisala's Woburn, MA factory during the first
of January 1998 have incorrect serial numbers.  Instead of being numbered
8012XXXXX these sondes are numbered 7012XXXXX.  Vaisala has been informed
of this, has confirmed the problem, and has corrected their numbering for
all subsequent sondes.  163 incorrectly numbered sondes were shipped to ARM
on 1/9/98.  Some have been used at the CF since 1/19/98:1430.
Measurements:sgpsondewrpnB4.a0:
  • lon(lon)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • Wind Direction(deg)
  • Dry bulb temperature(tdry)
  • base time(base_time)
  • Time offset of tweaks from base_time(time_offset)
  • Ascent Rate(asc)
  • Retrieved pressure profile(pres)
  • Surface dew point temperature(dp)
  • Wind Status(wstat)
  • lat(lat)
  • Dummy altitude for Zeb(alt)
sgpsondewrpnB5.a0:
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Retrieved pressure profile(pres)
  • Wind Direction(deg)
  • lon(lon)
  • Dummy altitude for Zeb(alt)
  • Ascent Rate(asc)
  • Time offset of tweaks from base_time(time_offset)
  • Mean Wind Speed(wspd)
  • base time(base_time)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dry bulb temperature(tdry)
sgpsondewrpnB5.a1:
  • Dry bulb temperature(tdry)
  • Time offset of tweaks from base_time(time_offset)
  • Wind Status(wstat)
  • Surface dew point temperature(dp)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • lat(lat)
  • Relative humidity inside the instrument enclosure(rh)
  • Ascent Rate(asc)
  • base time(base_time)
  • U-component(u_wind)
  • Wind Direction(deg)
  • lon(lon)
  • V-component(v_wind)
  • Mean Wind Speed(wspd)
sgpsondewrpnB4.a1:
  • Ascent Rate(asc)
  • Surface dew point temperature(dp)
  • lon(lon)
  • V-component(v_wind)
  • Time offset of tweaks from base_time(time_offset)
  • U-component(u_wind)
  • Relative humidity inside the instrument enclosure(rh)
  • Dry bulb temperature(tdry)
  • base time(base_time)
  • Dummy altitude for Zeb(alt)
  • Wind Status(wstat)
  • Retrieved pressure profile(pres)
  • lat(lat)
  • Mean Wind Speed(wspd)
  • Wind Direction(deg)
sgpsondewrpnB1.a1:
  • Retrieved pressure profile(pres)
  • V-component(v_wind)
  • lat(lat)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • lon(lon)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • base time(base_time)
  • Mean Wind Speed(wspd)
  • Surface dew point temperature(dp)
  • Time offset of tweaks from base_time(time_offset)
sgpsondewrpnB1.a0:
  • Dummy altitude for Zeb(alt)
  • Wind Status(wstat)
  • Ascent Rate(asc)
  • Relative humidity inside the instrument enclosure(rh)
  • lon(lon)
  • lat(lat)
  • base time(base_time)
  • Mean Wind Speed(wspd)
  • Time offset of tweaks from base_time(time_offset)
  • Surface dew point temperature(dp)
  • Wind Direction(deg)
  • Retrieved pressure profile(pres)
  • Dry bulb temperature(tdry)
sgpsondewrpnB6.a0:
  • base time(base_time)
  • Wind Status(wstat)
  • Ascent Rate(asc)
  • Dry bulb temperature(tdry)
  • lat(lat)
  • Surface dew point temperature(dp)
  • Wind Direction(deg)
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • Relative humidity inside the instrument enclosure(rh)
  • lon(lon)
  • Dummy altitude for Zeb(alt)
  • Mean Wind Speed(wspd)
sgpsondewrpnC1.a1:
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • Mean Wind Speed(wspd)
  • Wind Direction(deg)
  • Retrieved pressure profile(pres)
  • lat(lat)
  • V-component(v_wind)
  • Time offset of tweaks from base_time(time_offset)
  • Surface dew point temperature(dp)
  • lon(lon)
  • base time(base_time)
  • Relative humidity inside the instrument enclosure(rh)
  • Ascent Rate(asc)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
sgpsondewrpnC1.a0:
  • Retrieved pressure profile(pres)
  • Relative humidity inside the instrument enclosure(rh)
  • Dummy altitude for Zeb(alt)
  • lat(lat)
  • lon(lon)
  • base time(base_time)
  • Ascent Rate(asc)
  • Surface dew point temperature(dp)
  • Wind Status(wstat)
  • Dry bulb temperature(tdry)
  • Mean Wind Speed(wspd)
  • Time offset of tweaks from base_time(time_offset)
  • Wind Direction(deg)
sgpsondewrpnB6.a1:
  • Retrieved pressure profile(pres)
  • Mean Wind Speed(wspd)
  • U-component(u_wind)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
  • Dry bulb temperature(tdry)
  • base time(base_time)
  • V-component(v_wind)
  • Wind Status(wstat)
  • lon(lon)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • Dummy altitude for Zeb(alt)

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DQRID : D990124.2
Start DateStart TimeEnd DateEnd Time
05/27/1992000005/31/20022359
Subject:
SGP/SONDE - Dry bias in sonde RH
DataStreams:DsgpsondeB1.00, DsgpsondeB1.a0, DsgpsondeB1.a1, DsgpsondeB4.00, DsgpsondeB4.a0,
DsgpsondeB4.a1, DsgpsondeB5.00, DsgpsondeB5.a0, DsgpsondeB5.a1, DsgpsondeC1.00, DsgpsondeC1.a0,
DsgpsondeC1.a1, DsgpsondenogcptucalcB1.c1, DsgpsondenogcptucalcB4.c1,
DsgpsondenogcptucalcB5.c1, DsgpsondenogcptucalcC1.c1, DsgpsondenogcwrpnB1.c1, DsgpsondenogcwrpnB4.c1,
DsgpsondenogcwrpnB5.c1, DsgpsondenogcwrpnC1.c1, DsgpsondeptuB1.00, DsgpsondeptuB4.00,
DsgpsondeptuB5.00, DsgpsondeptuB6.00, DsgpsondeptuC1.00, DsgpsondeptucalcB1.c1,
DsgpsondeptucalcB4.c1, DsgpsondeptucalcB5.c1, DsgpsondeptucalcC1.c1, sgpsondeB1.00,
sgpsondeB1.a0, sgpsondeB1.a1, sgpsondeB4.00, sgpsondeB4.a0, sgpsondeB4.a1, sgpsondeB5.00,
sgpsondeB5.a0, sgpsondeB5.a1, sgpsondeB6.00, sgpsondeC1.00, sgpsondeC1.a0, sgpsondeC1.a1,
sgpsondeptuC1.00, sgpsondewnpnB1.a0, sgpsondewnpnB1.a1, sgpsondewnpnB4.a0,
sgpsondewnpnB4.a1, sgpsondewnpnB5.a0, sgpsondewnpnB5.a1, sgpsondewnpnB6.a0, sgpsondewnpnB6.a1,
sgpsondewnpnC1.a0, sgpsondewnpnC1.a1, sgpsondewnprC1.a0, sgpsondewnprC1.a1,
sgpsondewrpnB1.00, sgpsondewrpnB1.a0, sgpsondewrpnB1.a1, sgpsondewrpnB4.00, sgpsondewrpnB4.a0,
sgpsondewrpnB4.a1, sgpsondewrpnB5.00, sgpsondewrpnB5.a0, sgpsondewrpnB5.a1,
sgpsondewrpnB6.00, sgpsondewrpnB6.a0, sgpsondewrpnB6.a1, sgpsondewrpnC1.00, sgpsondewrpnC1.a0,
sgpsondewrpnC1.a1, sgpsondewrprB1.00, sgpsondewrprB1.a0, sgpsondewrprB1.a1,
sgpsondewrprB4.00, sgpsondewrprB4.a0, sgpsondewrprB4.a1, sgpsondewrprB5.00, sgpsondewrprB5.a0,
sgpsondewrprB5.a1, sgpsondewrprC1.00, sgpsondewrprC1.a0, sgpsondewrprC1.a1
Description:
Vaisala has confirmed ARM findings of an apparent dry bias in the
relative humidity measured by RS-80H radiosondes.  The cause of
the dry bias is thought to be contamination of the humidity sensor
by volatile organic substances originating from some plastic parts
of the radiosonde.  The amount of contamination is a function of
the time between the date of sonde manufacture and its use.  All
RS-80H sondes manufactured before week 34 of 1998 will show this
bias.  After week 34 of 1998 Vaisala changed its packaging to
reduce, but not eliminate the contamination problem.

Starting with RS-80 radiosonde manufactured in late June 2000 Vaisala
enclosed the sensor boom in an inert plastic shield, thereby eliminating
the contamination that caused the dry bias.

Starting in May 2001 at the SGP, May 2002 at the TWP, and later 2002
at the NSA, ARM has moved to using RS-90 radiosondes.  These sondes
are not subject to the contaminatino that caused the dry bias.

Vaisala is in the process of developing an algorithm that can be 
used to estimate the correct RH from knowledge of the sonde age.
All of the ARM sounding data have sufficient metadata available
to apply the correction.

Additionally, ARM has funded a Science Team effort (Milosevich) to
develop a 'best' correction algorithm for the RS-80 radiosonde humidity
data.  When completed this algorithm will allow us to reprocess the
accumulated RS-80 data and produce a new data platform with what we
hope will be more accurate data.
Measurements:sgpsondeptuC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondeB4.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondeB4.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondeptuB4.00:
  • (Development raw data stream - documentation not supported)
sgpsondewrprB1.00:
  • null(Raw data stream - documentation not supported)
DsgpsondeC1.a1:
  • (Development data stream - documentation not supported)
DsgpsondeB5.a0:
  • (Development data stream - documentation not supported)
DsgpsondeC1.a0:
  • (Development data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewnprC1.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
DsgpsondenogcptucalcC1.c1:
  • (Development data stream - documentation not supported)
sgpsondewrpnB5.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnB4.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewnpnB1.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewnpnB1.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondeB5.a1:
  • (Development data stream - documentation not supported)
sgpsondewrprB4.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewrpnB4.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
DsgpsondeB4.a0:
  • (Development data stream - documentation not supported)
sgpsondewrpnB6.00:
  • null(Raw data stream - documentation not supported)
DsgpsondeB4.a1:
  • (Development data stream - documentation not supported)
sgpsondewrprB4.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondeptuB6.00:
  • (Development raw data stream - documentation not supported)
sgpsondewnpnC1.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewrpnB6.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
DsgpsondeptuB5.00:
  • (Development raw data stream - documentation not supported)
sgpsondewnpnC1.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondenogcwrpnB4.c1:
  • (Development data stream - documentation not supported)
DsgpsondeB4.00:
  • (Development raw data stream - documentation not supported)
sgpsondewrpnB6.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondenogcptucalcB4.c1:
  • (Development data stream - documentation not supported)
DsgpsondeC1.00:
  • (Development raw data stream - documentation not supported)
DsgpsondeptuC1.00:
  • (Development raw data stream - documentation not supported)
DsgpsondeptucalcB1.c1:
  • (Development data stream - documentation not supported)
DsgpsondeptucalcB5.c1:
  • (Development data stream - documentation not supported)
sgpsondewrpnB1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnB1.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewrpnB1.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondeptuB1.00:
  • (Development raw data stream - documentation not supported)
DsgpsondeB1.00:
  • (Development raw data stream - documentation not supported)
DsgpsondeptucalcB4.c1:
  • (Development data stream - documentation not supported)
DsgpsondenogcwrpnB5.c1:
  • (Development data stream - documentation not supported)
sgpsondewrpnB5.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewrpnB5.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
DsgpsondenogcptucalcB1.c1:
  • (Development data stream - documentation not supported)
sgpsondeC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrprB4.00:
  • null(Raw data stream - documentation not supported)
sgpsondeB4.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrprB1.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewrprC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrprB1.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewnpnB5.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondeB1.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondeB5.00:
  • (Development raw data stream - documentation not supported)
sgpsondewnpnB5.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondeB1.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewnpnB4.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewnpnB6.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewnpnB6.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewnpnB4.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
DsgpsondenogcwrpnB1.c1:
  • (Development data stream - documentation not supported)
sgpsondeB5.00:
  • null(Raw data stream - documentation not supported)
sgpsondeB6.00:
  • null(Raw data stream - documentation not supported)
DsgpsondenogcptucalcB5.c1:
  • (Development data stream - documentation not supported)
sgpsondewrprB5.00:
  • null(Raw data stream - documentation not supported)
DsgpsondeptucalcC1.c1:
  • (Development data stream - documentation not supported)
DsgpsondenogcwrpnC1.c1:
  • (Development data stream - documentation not supported)
sgpsondeC1.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondeC1.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondeB1.a0:
  • (Development data stream - documentation not supported)
sgpsondewrpnC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondeB5.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewrpnB4.00:
  • null(Raw data stream - documentation not supported)
sgpsondeB5.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
DsgpsondeB1.a1:
  • (Development data stream - documentation not supported)
sgpsondewrprC1.a1:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewrprB5.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondewrprB5.a1:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewrpnC1.a0:
  • Relative humidity inside the instrument enclosure(rh)
  • Surface dew point temperature(dp)
sgpsondewnprC1.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)
sgpsondeB1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrprC1.a0:
  • Surface dew point temperature(dp)
  • Relative humidity inside the instrument enclosure(rh)

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DQRID : D990210.1
Start DateStart TimeEnd DateEnd Time
02/09/1999083402/09/19991016
Subject:
SGP/SONDE - Wrong cal tape
DataStreams:sgpsondewndcalcC1.c1, sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
There is something wrong with this sounding, its not clear exactly
what happened, however.  The first values reported by the radiosonde
are much different from those entered by the operator.  My impression
is that this is a calibration tape mixup.  The raw data file shows
that the sounding software was initialized twice for this sounding,
the first time showing sonde 823360910, the second time showing
sonde 819351814.  There is no enties in the operations log that
describe a problem with a sonde before launch.
Measurements:sgpsondewndcalcC1.c1:
  • lat(lat)
  • base time(base_time)
  • lon(lon)
  • W-to-E Component of wind, calculated(u_wind_calc)
  • Dummy altitude for Zeb(alt)
  • Flags for input v_wind values(v_wind_flags)
  • Flags for input u_wind values(u_wind_flags)
  • Time offset of tweaks from base_time(time_offset)
  • S-to-N Component of Wind, calculated(v_wind_calc)
  • Retrieved pressure profile(pres)
sgpsondewrpnC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • V-component(v_wind)
  • Relative humidity inside the instrument enclosure(rh)
  • Ascent Rate(asc)
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Wind Direction(deg)
  • Wind Status(wstat)
  • base time(base_time)
sgpsondewrpnC1.a0:
  • base time(base_time)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)

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DQRID : D990303.1
Start DateStart TimeEnd DateEnd Time
03/02/1999082803/02/19990828
Subject:
SGP/SONDE - Pressure jump at launch
DataStreams:sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
The difference between the sonde-reported pressure at the surface
(969.1 hPa) and the first pressure value reported after launch
(963.5) is larger than expected.  This may indicate that either
the pressure sensor was jarred at launch, that the system failed
to correctly identify the launch start time, or some other problem.

The ascent rates during the first 30 seconds of the sounding will be
incorrect as will the absolute altitudes during the sounding.
Measurements:sgpsondewrpnC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • Relative humidity inside the instrument enclosure(rh)
  • V-component(v_wind)
  • Ascent Rate(asc)
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Wind Direction(deg)
  • Wind Status(wstat)
  • base time(base_time)
sgpsondewrpnC1.a0:
  • base time(base_time)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)

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DQRID : D990329.1
Start DateStart TimeEnd DateEnd Time
03/22/1999023003/22/19990230
Subject:
Incorrect surface RH
DataStreams:sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
The operator entered an incorrect value (7.5%) for the surface RH for this
sounding.  The correct value should have been 70%.  The operator noticed
the error after the sounding had been completed and reported it in his log.
Measurements:sgpsondewrpnC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • Relative humidity inside the instrument enclosure(rh)
  • V-component(v_wind)
  • Ascent Rate(asc)
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Wind Direction(deg)
  • Wind Status(wstat)
  • base time(base_time)
sgpsondewrpnC1.a0:
  • base time(base_time)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)

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DQRID : D990513.1
Start DateStart TimeEnd DateEnd Time
05/10/1999113005/11/19992041
Subject:
SGP/SONDE - RH probably biased low in several soundings
DataStreams:sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
In the process of moving storage facilties, site operations uncovered some old radiosondes 
(vintage April 1998) that were used in several soundings starting on May 10 at 0530 and 
continuing at least through May 11 at 2040.
Because these sondes are so old and pre-date Vaisala's repackaging they are likely subject 
to the sensor contamination problem that results in a dry bias in RH.  The sondes in 
question have serial numbers 816XXXXXX.
Measurements:sgpsondewrpnC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • Relative humidity inside the instrument enclosure(rh)
  • V-component(v_wind)
  • Ascent Rate(asc)
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Wind Direction(deg)
  • Wind Status(wstat)
  • base time(base_time)
sgpsondewrpnC1.a0:
  • base time(base_time)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)

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DQRID : D991221.1
Start DateStart TimeEnd DateEnd Time
12/18/1999053012/18/19990530
Subject:
SGP/SONDE - Incorrect surface temperature
DataStreams:sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
The operator entered 20.0 degrees rather than the true temperature of 2.0
degrees.
Measurements:sgpsondewrpnC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • Relative humidity inside the instrument enclosure(rh)
  • V-component(v_wind)
  • Ascent Rate(asc)
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Wind Direction(deg)
  • Wind Status(wstat)
  • base time(base_time)
sgpsondewrpnC1.a0:
  • base time(base_time)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)

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DQRID : D991228.1
Start DateStart TimeEnd DateEnd Time
12/22/1999233012/22/19992330
Subject:
SGP/SONDE - Incorrect surface temperature
DataStreams:sgpsondewrpnC1.00, sgpsondewrpnC1.a0, sgpsondewrpnC1.a1
Description:
The operator entered the surface temperature as 25 degC rather than the
correct 2.5 deg C.  This is the second time in a week this type of error
has occurred.  I have sent a separate e-mail to site ops.
Measurements:sgpsondewrpnC1.00:
  • null(Raw data stream - documentation not supported)
sgpsondewrpnC1.a1:
  • Retrieved pressure profile(pres)
  • Time offset of tweaks from base_time(time_offset)
  • lat(lat)
  • Relative humidity inside the instrument enclosure(rh)
  • V-component(v_wind)
  • Ascent Rate(asc)
  • U-component(u_wind)
  • Dummy altitude for Zeb(alt)
  • Dry bulb temperature(tdry)
  • Surface dew point temperature(dp)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Wind Direction(deg)
  • Wind Status(wstat)
  • base time(base_time)
sgpsondewrpnC1.a0:
  • base time(base_time)
  • Dummy altitude for Zeb(alt)
  • Retrieved pressure profile(pres)
  • Ascent Rate(asc)
  • Wind Direction(deg)
  • Surface dew point temperature(dp)
  • lat(lat)
  • Dry bulb temperature(tdry)
  • Wind Status(wstat)
  • Relative humidity inside the instrument enclosure(rh)
  • Mean Wind Speed(wspd)
  • lon(lon)
  • Time offset of tweaks from base_time(time_offset)

Back To Table of Contents


END OF DATA