DQRs for Session: 115244 User:wljCompleted: 10-28-2008

Data Quality Reports for Session: 115244 User: wlj Completed: 10/28/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D011127.29	SGP EBBR E18 - E18 EBBR Data Incorrect During 6 Month Checks	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D011218.8	SGP EBBR E18 - E18 EBBR Right RH Incorrect	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D020716.14	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D020717.20	SGP/EBBR/E18 - Version 6 Produced Noisy Fluxes	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D020717.21	SGP/EBBR/E18 - AEM Hung	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D020717.22	SGP/EBBR/E18 - Soil Heat Flows Incorrect After Calibration Changeout	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D020717.23	SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D020717.24	SGP/EBBR/E18 - Left Air Temperature Incorrect	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D020717.25	SGP/EBBR/E18 - Reference Temperature Incorrect	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D021113.1	SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header	sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1
D030110.23	SGP/EBBR/E18 - Data Incorrect during 6 month checks	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D030115.10	SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 High	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D030115.11	SGP/EBBR/E18 - Reprocess: Soil Heat Flow #4 High	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D030115.12	SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D030115.13	SGP/EBBR/E18 - Data Incorrect After Logger Restart	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D030115.14	SGP/EBBR/E18 - Water in Net Radiometer Dome	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D030117.24	SGP/EBBR/E18 - REPROCESS: Soil Heat Flow #1 and #4 High	sgp30ebbrE18.a1, sgp30ebbrE18.b1
D030711.22	SGP/EBBR/E18 - AEM Hung	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D030712.19	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D030919.9	SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
D031204.16	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D040206.1	SGP/EBBR/E18 - AEM Sitting At Home 15 Position	sgp15ebbrE18.b1, sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D040304.17	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D040304.18	SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice	sgp30ebbrE18.b1, sgp5ebbrE18.b1
D040505.3	SGP/EBBR/E18 - Pressure Low	sgp30ebbrE18.b1, sgp5ebbrE18.b1
D040723.4	SGP/EBBR/E18 - Soil Temperature and Moisture Probes in Set #1 Spiked Outputs	sgp30ebbrE18.b1
D040813.6	SGP/EBBR/E18 - Soil Temperature #2 Incorrect	sgp30ebbrE18.b1
D041222.14	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D050206.12	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D050207.8	SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D050719.11	SGP/EBBR/E18 - Improved EBBR CR10 Program	sgp30ebbrE18.b1
D051106.10	SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D051106.26	SGP/EBBR/E18 - Average Soil Heat Flux Incorrect	sgp30ebbrE18.b1
D051111.13	SGP/EBBR/E18 - metadata corrections	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D060501.17	SGP/EBBR/E18 - Wind Speed Zero	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D060818.6	SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D061103.3	SGP/EBBR/E18 - Sensible and Latent Heat Fluxes Incorrect	sgp30ebbrE18.b1
D080424.1	SGP/EBBR/E18 - Soil Heat Flow #4 Offscale Low; Sensible and Latent Heat Flux Sometimes Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1
D080702.2	SGP/EBBR/E18 - SHF #4 Measurements Too Low; Sensible and Latent Heat Fluxes Suspect	sgp15ebbrE18.b1, sgp30ebbrE18.b1

DQRID : D011127.29

Start Date	Start Time	End Date	End Time
04/03/2001	2255	04/03/2001	2341
10/18/2001	1421	10/18/2001	1601

Subject:	SGP EBBR E18 - E18 EBBR Data Incorrect During 6 Month Checks
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The data was incorrect during the 6 month checks.
Measurements:	sgp15ebbrE18.a1: Wind direction (relative to true north)(mv_wind_d) Reference temperature(rr_tref) Soil temperature 4(rr_ts4) Soil temperature 3(rr_ts3) Soil temperature 1(rr_ts1) Right relative humidity(mv_hum_r) Left relative humidity(mv_hum_l) Left air temperature(tair_l) Soil moisture 1(r_sm1) Soil moisture 2(r_sm2) Soil moisture 3(r_sm3) Temperature of right humidity sensor chamber(rr_thum_r) Soil moisture 4(r_sm4) Soil heat flow 1(mv_hft1) scalar wind speed(wind_s) Soil temperature 2(rr_ts2) Soil temperature 5(rr_ts5) Temperature of left humidity sensor chamber(rr_thum_l) Net radiation(mv_q) Soil heat flow 4(mv_hft4) Soil moisture 5(r_sm5) Soil heat flow 3(mv_hft3) Soil heat flow 2(mv_hft2) Soil heat flow 5(mv_hft5) Right air temperature(tair_r) Atmospheric pressure(mv_pres) sgp30ebbrE18.b1: 0-5 cm integrated soil temperature, site 2(ts1) standard deviation of wind direction (sigma theta)(sigma_wd) 0-5 cm integrated soil temperature, site 2(ts2) Bottom humidity(hum_bot) 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) 0-5 cm integrated soil temperature, site 3(ts3) Temperature of the top humidity chamber(thum_top) 0-5 cm change in soil heat storage with time, site 2(ces2) Temperature of bottom humidity sensor chamber(thum_bot) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) volumetric soil moisture, site 1(sm1) top vapor pressure(vp_top) 0-5 cm change in soil heat storage with time, site 2(ces1) 0-5 cm change in soil heat storage with time, site 3(ces3) latent heat flux(e) bottom vapor pressure(vp_bot) 5 cm soil heat flow, site 5(shf5) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) 5 cm soil heat flow, site 2(shf2) scalar wind speed(wind_s) vector wind speed(res_ws) 5 cm soil heat flow, site 3(shf3) Soil heat capacity 4(cs4) Soil heat capacity 3(cs3) bottom air temperature(tair_bot) 5 cm soil heat flow, site 1(shf1) Soil heat capacity 2(cs2) 0-5 cm integrated soil temperature, site 5(ts5) Soil heat capacity 5(cs5) top air temperature(tair_top) Retrieved pressure profile(pres) soil heat flow, site 5(g5) Reference Thermistor Temperature(tref) average surface soil heat flow(ave_shf) 5 cm soil heat flow, site 4(shf4) 0-5 cm change in soil heat storage with time, site 5(ces5) Top humidity(hum_top) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) soil heat flow, site 4(g4) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) wind direction (relative to true north)(wind_d) soil heat flow, site 1(g1) soil heat flow, site 2(g2) net radiation(q) volumetric soil moisture, site 5(sm5) 0-5 cm change in soil heat storage with time, site 4(ces4) h(h) volumetric soil moisture, site 2(sm2) Soil heat capacity 1(cs1) volumetric soil moisture, site 4(sm4) soil heat flow, site 3(g3) 0-5 cm integrated soil temperature, site 4(ts4) volumetric soil moisture, site 3(sm3) sgp15ebbrE18.b1: Soil heat flow 3(mv_hft3) Wind direction (relative to true north)(mv_wind_d) Soil moisture 1(r_sm1) Soil heat flow 2(mv_hft2) Net radiation(mv_q) Left air temperature(tair_l) Soil moisture 2(r_sm2) Soil heat flow 1(mv_hft1) Soil moisture 5(r_sm5) Soil moisture 4(r_sm4) Reference temperature(rr_tref) Soil temperature 2(rr_ts2) Soil moisture 3(r_sm3) Soil heat flow 5(mv_hft5) Soil temperature 1(rr_ts1) Soil temperature 4(rr_ts4) Temperature of right humidity sensor chamber(rr_thum_r) Soil heat flow 4(mv_hft4) Left relative humidity(mv_hum_l) Soil temperature 3(rr_ts3) Right air temperature(tair_r) Soil temperature 5(rr_ts5) Temperature of left humidity sensor chamber(rr_thum_l) Atmospheric pressure(mv_pres) Right relative humidity(mv_hum_r) scalar wind speed(wind_s) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) bottom vapor pressure(vp_bot) Retrieved pressure profile(pres) net radiation(q) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) Reference Thermistor Temperature(tref) vector wind speed(res_ws) scalar wind speed(wind_s) top air temperature(tair_top) standard deviation of wind direction (sigma theta)(sigma_wd) top vapor pressure(vp_top) Bottom humidity(hum_bot) Top humidity(hum_top) wind direction (relative to true north)(wind_d) sgp30ebbrE18.a1: 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) Soil heat capacity 3(cs3) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) soil heat flow, site 2(g2) soil heat flow, site 4(g4) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) volumetric soil moisture, site 4(sm4) 0-5 cm integrated soil temperature, site 2(ts1) Temperature of the top humidity chamber(thum_top) h(h) Soil heat capacity 4(cs4) 5 cm soil heat flow, site 1(shf1) wind direction (relative to true north)(wind_d) 0-5 cm integrated soil temperature, site 2(ts2) 5 cm soil heat flow, site 2(shf2) volumetric soil moisture, site 1(sm1) soil heat flow, site 3(g3) 5 cm soil heat flow, site 5(shf5) vector wind speed(res_ws) average surface soil heat flow(ave_shf) net radiation(q) Soil heat capacity 1(cs1) top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) top air temperature(tair_top) bottom vapor pressure(vp_bot) 0-5 cm integrated soil temperature, site 4(ts4) Bottom humidity(hum_bot) 5 cm soil heat flow, site 4(shf4) Reference Thermistor Temperature(tref) Temperature of bottom humidity sensor chamber(thum_bot) volumetric soil moisture, site 2(sm2) latent heat flux(e) Soil heat capacity 5(cs5) scalar wind speed(wind_s) 0-5 cm integrated soil temperature, site 5(ts5) 0-5 cm change in soil heat storage with time, site 5(ces5) Soil heat capacity 2(cs2) 5 cm soil heat flow, site 3(shf3) Top humidity(hum_top) 0-5 cm integrated soil temperature, site 3(ts3) volumetric soil moisture, site 5(sm5) 0-5 cm change in soil heat storage with time, site 3(ces3) Retrieved pressure profile(pres) soil heat flow, site 5(g5) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm change in soil heat storage with time, site 2(ces1) 0-5 cm change in soil heat storage with time, site 4(ces4) bottom air temperature(tair_bot) standard deviation of wind direction (sigma theta)(sigma_wd) soil heat flow, site 1(g1) volumetric soil moisture, site 3(sm3)

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DQRID : D011218.8

Start Date	Start Time	End Date	End Time
05/10/2001	1810	06/12/2001	2240

Subject:	SGP EBBR E18 - E18 EBBR Right RH Incorrect
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The RH portion of the T/RH probe produced incorrect data. Sensible and latent heat fluxes and the Bowen ratio were also incorrect.
Measurements:	sgp15ebbrE18.a1: Right relative humidity(mv_hum_r) Temperature of right humidity sensor chamber(rr_thum_r) sgp30ebbrE18.b1: latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) top vapor pressure(vp_top) sgp15ebbrE18.b1: Temperature of right humidity sensor chamber(rr_thum_r) Right relative humidity(mv_hum_r) sgp5ebbrE18.a1: bottom vapor pressure(vp_bot) Temperature of the top humidity chamber(thum_top) Bottom humidity(hum_bot) Top humidity(hum_top) Temperature of bottom humidity sensor chamber(thum_bot) top vapor pressure(vp_top) sgp30ebbrE18.a1: top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) Temperature of bottom humidity sensor chamber(thum_bot) latent heat flux(e) Temperature of the top humidity chamber(thum_top) h(h) Top humidity(hum_top)

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DQRID : D020716.14

Start Date	Start Time	End Date	End Time
04/30/2002	2000	04/30/2002	2031

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The indicated measurements were incorrect during the 6 month checks.
Measurements:	sgp15ebbrE18.a1: Right air temperature(tair_r) Left air temperature(tair_l) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Left air temperature(tair_l) Right air temperature(tair_r) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) top air temperature(tair_top) Top humidity(hum_top) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) top vapor pressure(vp_top) sgp30ebbrE18.a1: top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) top air temperature(tair_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) Temperature of bottom humidity sensor chamber(thum_bot) bottom air temperature(tair_bot) latent heat flux(e) Temperature of the top humidity chamber(thum_top) h(h) Top humidity(hum_top)

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DQRID : D020717.20

Start Date	Start Time	End Date	End Time
11/01/2001	0000	03/29/2002	1631

Subject:	SGP/EBBR/E18 - Version 6 Produced Noisy Fluxes
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	Version 6 of the CR10 program produced noisy latent and sensible heat fluxes. That ended on March 29 after a recalibration unit was installed with version 8.
Measurements:	sgp30ebbrE18.b1: latent heat flux(e) h(h) sgp30ebbrE18.a1: h(h) latent heat flux(e)

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DQRID : D020717.21

Start Date	Start Time	End Date	End Time
11/14/2001	1945	11/14/2001	2001
11/25/2001	0215	11/25/2001	1901
11/28/2001	1145	11/28/2001	1501
11/29/2001	0745	11/29/2001	0931
11/29/2001	1415	11/30/2001	0431
12/02/2001	0145	12/02/2001	0201
12/03/2001	0045	12/03/2001	0101
12/24/2001	2015	12/24/2001	2031
12/25/2001	1915	12/25/2001	2031
01/18/2002	0115	01/18/2002	0201
01/22/2002	1615	01/22/2002	1631
01/24/2002	2115	01/24/2002	2131
01/28/2002	1345	01/28/2002	1401
02/13/2002	2215	02/14/2002	0801
02/25/2002	2345	02/26/2002	0001
03/14/2002	1515	03/29/2002	1831
04/06/2002	0030	04/17/2002	1401
04/18/2002	2230	04/30/2002	2031
05/01/2002	0300	05/28/2002	2031

Subject:	SGP/EBBR/E18 - AEM Hung
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The automatic exchange mechanism did not work properly for a number of time periods. The Bowen ratio, latent heat flux, and sensible heat flux were incorrect also during this condition.
Measurements:	sgp15ebbrE18.a1: Right air temperature(tair_r) Left air temperature(tair_l) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Left air temperature(tair_l) Right air temperature(tair_r) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) top air temperature(tair_top) Top humidity(hum_top) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) top vapor pressure(vp_top) sgp30ebbrE18.a1: top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) top air temperature(tair_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) Temperature of bottom humidity sensor chamber(thum_bot) bottom air temperature(tair_bot) latent heat flux(e) Temperature of the top humidity chamber(thum_top) h(h) Top humidity(hum_top)

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DQRID : D020717.22

Start Date	Start Time	End Date	End Time
03/29/2002	1815	03/29/2002	2131

Subject:	SGP/EBBR/E18 - Soil Heat Flows Incorrect After Calibration Changeout
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	The soil heat flows were incorrect while the EBBR changeout was being done.
Measurements:	sgp30ebbrE18.b1: soil heat flow, site 2(g2) latent heat flux(e) soil heat flow, site 5(g5) 5 cm soil heat flow, site 5(shf5) h(h) 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) 5 cm soil heat flow, site 2(shf2) average surface soil heat flow(ave_shf) 5 cm soil heat flow, site 4(shf4) 5 cm soil heat flow, site 3(shf3) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) soil heat flow, site 4(g4) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) 5 cm soil heat flow, site 1(shf1) soil heat flow, site 3(g3) soil heat flow, site 1(g1) sgp30ebbrE18.a1: 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) soil heat flow, site 5(g5) 5 cm soil heat flow, site 1(shf1) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) 5 cm soil heat flow, site 2(shf2) soil heat flow, site 2(g2) soil heat flow, site 4(g4) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow, site 4(shf4) soil heat flow, site 3(g3) 5 cm soil heat flow, site 5(shf5) latent heat flux(e) soil heat flow, site 1(g1) h(h) average surface soil heat flow(ave_shf) 5 cm soil heat flow, site 3(shf3)

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DQRID : D020717.23

Start Date	Start Time	End Date	End Time
05/20/2002	0600	05/20/2002	2001
05/21/2002	0430	05/21/2002	1731
05/22/2002	1130	05/22/2002	1631

Subject:	SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	Soil Heat Flow 1 was incorrect during the indicated periods. Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can be recalculated using the remaining good sets of soil sensors as follows: ave_shf = (g2 + g3 + g4 + g5)/4 e = -(q + ave_shf)/(1 + bowen) h = -(q + e + ave_shf)
Measurements:	sgp30ebbrE18.b1: latent heat flux(e) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) 5 cm soil heat flow, site 1(shf1) soil heat flow, site 1(g1) h(h) average surface soil heat flow(ave_shf) sgp30ebbrE18.a1: soil heat flow, site 1(g1) h(h) average surface soil heat flow(ave_shf) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) latent heat flux(e) 5 cm soil heat flow, site 1(shf1)

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DQRID : D020717.24

Start Date	Start Time	End Date	End Time
04/09/2002	1900	05/14/2002	1846

Subject:	SGP/EBBR/E18 - Left Air Temperature Incorrect
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The left air temperature was incorrect much of the time, causing the Bowen ratio, sensible heat flux, and latent heat flux to be incorrect also.
Measurements:	sgp15ebbrE18.a1: Left air temperature(tair_l) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) h(h) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) bottom air temperature(tair_bot) sgp15ebbrE18.b1: Left air temperature(tair_l) sgp5ebbrE18.a1: bottom air temperature(tair_bot) top air temperature(tair_top) sgp30ebbrE18.a1: ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) bottom air temperature(tair_bot) latent heat flux(e) top air temperature(tair_top) h(h)

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DQRID : D020717.25

Start Date	Start Time	End Date	End Time
04/17/2002	1430	04/17/2002	1431

Subject:	SGP/EBBR/E18 - Reference Temperature Incorrect
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The reference temperature was incorrect during the checks of the left air temperature sensor, leading to all gradient measurements, Bowen ratio, sensible heat flux, latent heat flux, soil temperature, and soil moisture measurements being incorrect.
Measurements:	sgp15ebbrE18.a1: Right air temperature(tair_r) Left air temperature(tair_l) sgp30ebbrE18.b1: top air temperature(tair_top) 0-5 cm integrated soil temperature, site 2(ts1) Reference Thermistor Temperature(tref) 0-5 cm integrated soil temperature, site 2(ts2) 0-5 cm integrated soil temperature, site 3(ts3) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm change in soil heat storage with time, site 5(ces5) volumetric soil moisture, site 1(sm1) 0-5 cm change in soil heat storage with time, site 2(ces1) 0-5 cm change in soil heat storage with time, site 3(ces3) latent heat flux(e) volumetric soil moisture, site 5(sm5) 0-5 cm change in soil heat storage with time, site 4(ces4) h(h) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) volumetric soil moisture, site 2(sm2) Soil heat capacity 1(cs1) volumetric soil moisture, site 4(sm4) Soil heat capacity 4(cs4) Soil heat capacity 3(cs3) bottom air temperature(tair_bot) Soil heat capacity 2(cs2) 0-5 cm integrated soil temperature, site 4(ts4) volumetric soil moisture, site 3(sm3) Soil heat capacity 5(cs5) 0-5 cm integrated soil temperature, site 5(ts5) sgp15ebbrE18.b1: Right air temperature(tair_r) Left air temperature(tair_l) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) top air temperature(tair_top) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) sgp30ebbrE18.a1: Soil heat capacity 1(cs1) Soil heat capacity 3(cs3) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) top air temperature(tair_top) 0-5 cm integrated soil temperature, site 4(ts4) volumetric soil moisture, site 4(sm4) Reference Thermistor Temperature(tref) 0-5 cm integrated soil temperature, site 2(ts1) volumetric soil moisture, site 2(sm2) latent heat flux(e) Soil heat capacity 5(cs5) h(h) 0-5 cm integrated soil temperature, site 5(ts5) 0-5 cm change in soil heat storage with time, site 5(ces5) Soil heat capacity 2(cs2) 0-5 cm integrated soil temperature, site 3(ts3) Soil heat capacity 4(cs4) volumetric soil moisture, site 5(sm5) 0-5 cm change in soil heat storage with time, site 3(ces3) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm change in soil heat storage with time, site 2(ces1) 0-5 cm integrated soil temperature, site 2(ts2) 0-5 cm change in soil heat storage with time, site 4(ces4) volumetric soil moisture, site 1(sm1) bottom air temperature(tair_bot) volumetric soil moisture, site 3(sm3)

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DQRID : D021113.1

Start Date	Start Time	End Date	End Time
04/01/2001	0000	06/18/2003	2359

Subject:	SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header
DataStreams:	sgp30ebbrE12.b1, sgp30ebbrE13.b1, sgp30ebbrE15.b1, sgp30ebbrE18.b1, sgp30ebbrE19.b1, sgp30ebbrE2.b1, sgp30ebbrE20.b1, sgp30ebbrE22.b1, sgp30ebbrE26.b1, sgp30ebbrE4.b1, sgp30ebbrE7.b1, sgp30ebbrE8.b1, sgp30ebbrE9.b1
Description:	The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality.
Measurements:	sgp30ebbrE8.b1: Soil heat capacity 4(cs4) Soil heat capacity 5(cs5) Soil heat capacity 3(cs3) Soil heat capacity 2(cs2) Soil heat capacity 1(cs1) sgp30ebbrE4.b1: Soil heat capacity 3(cs3) Soil heat capacity 2(cs2) Soil heat capacity 5(cs5) Soil heat capacity 4(cs4) Soil heat capacity 1(cs1) sgp30ebbrE9.b1: Soil heat capacity 3(cs3) Soil heat capacity 2(cs2) Soil heat capacity 5(cs5) Soil heat capacity 4(cs4) Soil heat capacity 1(cs1) sgp30ebbrE18.b1: Soil heat capacity 1(cs1) Soil heat capacity 4(cs4) Soil heat capacity 3(cs3) Soil heat capacity 2(cs2) Soil heat capacity 5(cs5) sgp30ebbrE26.b1: Soil heat capacity 1(cs1) Soil heat capacity 4(cs4) Soil heat capacity 5(cs5) Soil heat capacity 2(cs2) Soil heat capacity 3(cs3) sgp30ebbrE13.b1: Soil heat capacity 4(cs4) Soil heat capacity 2(cs2) Soil heat capacity 1(cs1) Soil heat capacity 3(cs3) Soil heat capacity 5(cs5) sgp30ebbrE7.b1: Soil heat capacity 1(cs1) Soil heat capacity 4(cs4) Soil heat capacity 5(cs5) Soil heat capacity 2(cs2) Soil heat capacity 3(cs3) sgp30ebbrE12.b1: Soil heat capacity 2(cs2) Soil heat capacity 5(cs5) Soil heat capacity 4(cs4) Soil heat capacity 1(cs1) Soil heat capacity 3(cs3) sgp30ebbrE19.b1: Soil heat capacity 1(cs1) Soil heat capacity 5(cs5) Soil heat capacity 2(cs2) Soil heat capacity 3(cs3) Soil heat capacity 4(cs4) sgp30ebbrE2.b1: Soil heat capacity 2(cs2) Soil heat capacity 3(cs3) Soil heat capacity 4(cs4) Soil heat capacity 1(cs1) Soil heat capacity 5(cs5) sgp30ebbrE22.b1: Soil heat capacity 5(cs5) Soil heat capacity 3(cs3) Soil heat capacity 4(cs4) Soil heat capacity 1(cs1) Soil heat capacity 2(cs2) sgp30ebbrE20.b1: Soil heat capacity 3(cs3) Soil heat capacity 1(cs1) Soil heat capacity 4(cs4) Soil heat capacity 5(cs5) Soil heat capacity 2(cs2) sgp30ebbrE15.b1: Soil heat capacity 5(cs5) Soil heat capacity 3(cs3) Soil heat capacity 4(cs4) Soil heat capacity 2(cs2) Soil heat capacity 1(cs1)

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DQRID : D030110.23

Start Date	Start Time	End Date	End Time
11/25/2002	2215	11/25/2002	2245

Subject:	SGP/EBBR/E18 - Data Incorrect during 6 month checks
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	Some of the measurements are incorrect during the 6 month checks.
Measurements:	sgp15ebbrE18.a1: Right air temperature(tair_r) Left air temperature(tair_l) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Left air temperature(tair_l) Right air temperature(tair_r) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) top air temperature(tair_top) Top humidity(hum_top) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) top vapor pressure(vp_top) sgp30ebbrE18.a1: top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) top air temperature(tair_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) Temperature of bottom humidity sensor chamber(thum_bot) bottom air temperature(tair_bot) latent heat flux(e) Temperature of the top humidity chamber(thum_top) h(h) Top humidity(hum_top)

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DQRID : D030115.10

Start Date	Start Time	End Date	End Time
07/08/2002	1800	07/19/2002	1430
08/20/2002	2100	08/26/2002	0300
09/01/2002	2100	11/12/2002	2130

Subject:	SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 High
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	Soil Heat Flow #1 measurements were 2X to offscale high during these periods. See below for a work-around.
Measurements:	sgp30ebbrE18.b1: latent heat flux(e) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) 5 cm soil heat flow, site 1(shf1) soil heat flow, site 1(g1) h(h) average surface soil heat flow(ave_shf) sgp30ebbrE18.a1: soil heat flow, site 1(g1) h(h) average surface soil heat flow(ave_shf) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) latent heat flux(e) 5 cm soil heat flow, site 1(shf1)

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DQRID : D030115.11

Start Date	Start Time	End Date	End Time
07/20/2002	2000	07/26/2002	2030
07/27/2002	0300	07/30/2002	2000
08/03/2002	0130	08/06/2002	2030
08/07/2002	0200	08/09/2002	1900
08/12/2002	0130	08/17/2002	2030
08/17/2002	2130	08/19/2002	1830

Subject:	SGP/EBBR/E18 - Reprocess: Soil Heat Flow #4 High
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	Soil Heat Flow #4 measurements were 2X or offscale high during this period when compared with the other soil heat flow measurements. See below for a work-around.
Measurements:	sgp30ebbrE18.b1: 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow, site 4(shf4) latent heat flux(e) h(h) soil heat flow, site 4(g4) average surface soil heat flow(ave_shf) sgp30ebbrE18.a1: h(h) 5 cm soil heat flow, site 4(shf4) average surface soil heat flow(ave_shf) latent heat flux(e) soil heat flow, site 4(g4) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)

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DQRID : D030115.12

Start Date	Start Time	End Date	End Time
11/12/2002	2200	11/12/2002	2229

Subject:	SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	Most of the measurements were zero, which normally happens after a datalogger restart. The restart on 11/12/02 occurred after replacement of soil heat flow #1.
Measurements:	sgp15ebbrE18.a1: Wind direction (relative to true north)(mv_wind_d) Home signal(mv_home) Reference temperature(rr_tref) Soil temperature 4(rr_ts4) Soil temperature 3(rr_ts3) Soil temperature 1(rr_ts1) Right relative humidity(mv_hum_r) Left relative humidity(mv_hum_l) Left air temperature(tair_l) Soil moisture 1(r_sm1) Soil moisture 2(r_sm2) Soil moisture 3(r_sm3) Battery(bat) Temperature of right humidity sensor chamber(rr_thum_r) Soil moisture 4(r_sm4) Soil heat flow 1(mv_hft1) scalar wind speed(wind_s) Soil temperature 2(rr_ts2) Soil temperature 5(rr_ts5) Temperature of left humidity sensor chamber(rr_thum_l) Net radiation(mv_q) Soil heat flow 4(mv_hft4) Soil moisture 5(r_sm5) Soil heat flow 3(mv_hft3) Soil heat flow 2(mv_hft2) Soil heat flow 5(mv_hft5) Right air temperature(tair_r) Atmospheric pressure(mv_pres) sgp30ebbrE18.b1: 0-5 cm integrated soil temperature, site 2(ts1) Exchange mechanism position indicator (15 to 30 min)(home_30) standard deviation of wind direction (sigma theta)(sigma_wd) 0-5 cm integrated soil temperature, site 2(ts2) Bottom humidity(hum_bot) 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) 0-5 cm integrated soil temperature, site 3(ts3) Temperature of the top humidity chamber(thum_top) 0-5 cm change in soil heat storage with time, site 2(ces2) Temperature of bottom humidity sensor chamber(thum_bot) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) volumetric soil moisture, site 1(sm1) top vapor pressure(vp_top) 0-5 cm change in soil heat storage with time, site 2(ces1) 0-5 cm change in soil heat storage with time, site 3(ces3) latent heat flux(e) bottom vapor pressure(vp_bot) 5 cm soil heat flow, site 5(shf5) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) 5 cm soil heat flow, site 2(shf2) scalar wind speed(wind_s) vector wind speed(res_ws) 5 cm soil heat flow, site 3(shf3) Soil heat capacity 4(cs4) Soil heat capacity 3(cs3) bottom air temperature(tair_bot) 5 cm soil heat flow, site 1(shf1) Soil heat capacity 2(cs2) Soil heat capacity 5(cs5) 0-5 cm integrated soil temperature, site 5(ts5) top air temperature(tair_top) Retrieved pressure profile(pres) soil heat flow, site 5(g5) Reference Thermistor Temperature(tref) average surface soil heat flow(ave_shf) 5 cm soil heat flow, site 4(shf4) 0-5 cm change in soil heat storage with time, site 5(ces5) Top humidity(hum_top) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) soil heat flow, site 4(g4) Exchange mechanism position indicator (0 to 15 min)(home_15) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) wind direction (relative to true north)(wind_d) soil heat flow, site 1(g1) soil heat flow, site 2(g2) net radiation(q) volumetric soil moisture, site 5(sm5) 0-5 cm change in soil heat storage with time, site 4(ces4) h(h) volumetric soil moisture, site 2(sm2) Soil heat capacity 1(cs1) volumetric soil moisture, site 4(sm4) soil heat flow, site 3(g3) 0-5 cm integrated soil temperature, site 4(ts4) volumetric soil moisture, site 3(sm3) sgp15ebbrE18.b1: Soil heat flow 3(mv_hft3) Wind direction (relative to true north)(mv_wind_d) Soil moisture 1(r_sm1) Soil heat flow 2(mv_hft2) Home signal(mv_home) Net radiation(mv_q) Left air temperature(tair_l) Soil moisture 2(r_sm2) Soil heat flow 1(mv_hft1) Soil moisture 5(r_sm5) Soil moisture 4(r_sm4) Reference temperature(rr_tref) Soil temperature 2(rr_ts2) Soil moisture 3(r_sm3) Soil heat flow 5(mv_hft5) Battery(bat) Soil temperature 1(rr_ts1) Soil temperature 4(rr_ts4) Temperature of right humidity sensor chamber(rr_thum_r) Soil heat flow 4(mv_hft4) Left relative humidity(mv_hum_l) Soil temperature 3(rr_ts3) Right air temperature(tair_r) Soil temperature 5(rr_ts5) Temperature of left humidity sensor chamber(rr_thum_l) Atmospheric pressure(mv_pres) Right relative humidity(mv_hum_r) scalar wind speed(wind_s) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) bottom vapor pressure(vp_bot) Retrieved pressure profile(pres) net radiation(q) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) Reference Thermistor Temperature(tref) vector wind speed(res_ws) scalar wind speed(wind_s) top air temperature(tair_top) standard deviation of wind direction (sigma theta)(sigma_wd) top vapor pressure(vp_top) Bottom humidity(hum_bot) Top humidity(hum_top) Home signal(home) wind direction (relative to true north)(wind_d) sgp30ebbrE18.a1: 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) Soil heat capacity 3(cs3) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) soil heat flow, site 2(g2) soil heat flow, site 4(g4) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) volumetric soil moisture, site 4(sm4) 0-5 cm integrated soil temperature, site 2(ts1) Temperature of the top humidity chamber(thum_top) h(h) Soil heat capacity 4(cs4) 5 cm soil heat flow, site 1(shf1) wind direction (relative to true north)(wind_d) 0-5 cm integrated soil temperature, site 2(ts2) 5 cm soil heat flow, site 2(shf2) volumetric soil moisture, site 1(sm1) soil heat flow, site 3(g3) 5 cm soil heat flow, site 5(shf5) vector wind speed(res_ws) average surface soil heat flow(ave_shf) net radiation(q) Soil heat capacity 1(cs1) top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) top air temperature(tair_top) bottom vapor pressure(vp_bot) 0-5 cm integrated soil temperature, site 4(ts4) Bottom humidity(hum_bot) 5 cm soil heat flow, site 4(shf4) Reference Thermistor Temperature(tref) Temperature of bottom humidity sensor chamber(thum_bot) Exchange mechanism position indicator (15 to 30 min)(home_30) volumetric soil moisture, site 2(sm2) latent heat flux(e) Soil heat capacity 5(cs5) scalar wind speed(wind_s) 0-5 cm integrated soil temperature, site 5(ts5) 0-5 cm change in soil heat storage with time, site 5(ces5) Soil heat capacity 2(cs2) 5 cm soil heat flow, site 3(shf3) Top humidity(hum_top) 0-5 cm integrated soil temperature, site 3(ts3) volumetric soil moisture, site 5(sm5) 0-5 cm change in soil heat storage with time, site 3(ces3) Retrieved pressure profile(pres) soil heat flow, site 5(g5) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm change in soil heat storage with time, site 2(ces1) 0-5 cm change in soil heat storage with time, site 4(ces4) bottom air temperature(tair_bot) standard deviation of wind direction (sigma theta)(sigma_wd) Exchange mechanism position indicator (0 to 15 min)(home_15) soil heat flow, site 1(g1) volumetric soil moisture, site 3(sm3)

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DQRID : D030115.13

Start Date	Start Time	End Date	End Time
11/12/2002	2230	11/12/2002	2259

Subject:	SGP/EBBR/E18 - Data Incorrect After Logger Restart
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	Because soil temperature measurements were not available from the beginning of the half hour, the change in soil energy storage could not be calculated and thus is incorrect. There is no fix to this problem. Average Soil Heat Flow, Sensible Heat Flux (h), and Latent Heat Flux (e) can not be calculated using the available, remaining measurements.
Measurements:	sgp30ebbrE18.b1: 0-5 cm change in soil heat storage with time, site 3(ces3) soil heat flow, site 2(g2) latent heat flux(e) soil heat flow, site 5(g5) 0-5 cm change in soil heat storage with time, site 4(ces4) h(h) average surface soil heat flow(ave_shf) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm change in soil heat storage with time, site 5(ces5) soil heat flow, site 4(g4) soil heat flow, site 3(g3) soil heat flow, site 1(g1) 0-5 cm change in soil heat storage with time, site 2(ces1) sgp30ebbrE18.a1: 0-5 cm change in soil heat storage with time, site 3(ces3) soil heat flow, site 5(g5) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm change in soil heat storage with time, site 2(ces1) soil heat flow, site 2(g2) soil heat flow, site 4(g4) 0-5 cm change in soil heat storage with time, site 4(ces4) soil heat flow, site 3(g3) latent heat flux(e) soil heat flow, site 1(g1) h(h) average surface soil heat flow(ave_shf) 0-5 cm change in soil heat storage with time, site 5(ces5)

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DQRID : D030115.14

Start Date	Start Time	End Date	End Time
10/09/2002	1400	10/15/2002	2030

Subject:	SGP/EBBR/E18 - Water in Net Radiometer Dome
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	The net radiation measurement is incorrect. Measurements calculated using net radiation are also incorrect. No work-around is possible for this situation.
Measurements:	sgp30ebbrE18.b1: latent heat flux(e) net radiation(q) h(h) sgp30ebbrE18.a1: h(h) net radiation(q) latent heat flux(e)

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DQRID : D030117.24

Start Date	Start Time	End Date	End Time
07/19/2002	1430	07/20/2002	2000
07/26/2002	2030	07/27/2002	0300
07/30/2002	2000	08/03/2002	0130
08/06/2002	2030	08/07/2002	0200
08/09/2002	1900	08/12/2002	0130
08/17/2002	2030	08/17/2002	2130
08/19/2002	1830	08/20/2002	2100

Subject:	SGP/EBBR/E18 - REPROCESS: Soil Heat Flow #1 and #4 High
DataStreams:	sgp30ebbrE18.a1, sgp30ebbrE18.b1
Description:	Soil Heat Flow #1 and #4 measurements were 2X to offscale high during these periods. See suggestions for a work-around.
Measurements:	sgp30ebbrE18.b1: latent heat flux(e) h(h) soil heat flow, site 4(g4) average surface soil heat flow(ave_shf) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow, site 4(shf4) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) 5 cm soil heat flow, site 1(shf1) soil heat flow, site 1(g1) sgp30ebbrE18.a1: 5 cm soil heat flow, site 4(shf4) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) latent heat flux(e) 5 cm soil heat flow, site 1(shf1) h(h) soil heat flow, site 1(g1) average surface soil heat flow(ave_shf) soil heat flow, site 4(g4) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)

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DQRID : D030711.22

Start Date	Start Time	End Date	End Time
04/01/2003	2145	04/01/2003	2200

Subject:	SGP/EBBR/E18 - AEM Hung
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The AEM was hung inbetween home positions, causing many measurements to be incorrect.
Measurements:	sgp15ebbrE18.a1: Temperature of left humidity sensor chamber(rr_thum_l) Right relative humidity(mv_hum_r) Temperature of right humidity sensor chamber(rr_thum_r) Left relative humidity(mv_hum_l) Right air temperature(tair_r) Left air temperature(tair_l) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Temperature of left humidity sensor chamber(rr_thum_l) Temperature of right humidity sensor chamber(rr_thum_r) Right relative humidity(mv_hum_r) Left air temperature(tair_l) Left relative humidity(mv_hum_l) Right air temperature(tair_r) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) top air temperature(tair_top) Top humidity(hum_top) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) top vapor pressure(vp_top) sgp30ebbrE18.a1: top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) top air temperature(tair_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) Temperature of bottom humidity sensor chamber(thum_bot) bottom air temperature(tair_bot) latent heat flux(e) Temperature of the top humidity chamber(thum_top) h(h) Top humidity(hum_top)

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DQRID : D030712.19

Start Date	Start Time	End Date	End Time
04/15/2003	2120	04/15/2003	2215

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks.
Measurements:	sgp15ebbrE18.a1: Temperature of left humidity sensor chamber(rr_thum_l) Right relative humidity(mv_hum_r) Temperature of right humidity sensor chamber(rr_thum_r) Left relative humidity(mv_hum_l) Right air temperature(tair_r) Left air temperature(tair_l) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Temperature of left humidity sensor chamber(rr_thum_l) Temperature of right humidity sensor chamber(rr_thum_r) Right relative humidity(mv_hum_r) Left air temperature(tair_l) Left relative humidity(mv_hum_l) Right air temperature(tair_r) sgp5ebbrE18.a1: Temperature of the top humidity chamber(thum_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) top air temperature(tair_top) Top humidity(hum_top) bottom air temperature(tair_bot) Temperature of bottom humidity sensor chamber(thum_bot) top vapor pressure(vp_top) sgp30ebbrE18.a1: top vapor pressure(vp_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) top air temperature(tair_top) bottom vapor pressure(vp_bot) Bottom humidity(hum_bot) Temperature of bottom humidity sensor chamber(thum_bot) bottom air temperature(tair_bot) latent heat flux(e) Temperature of the top humidity chamber(thum_top) h(h) Top humidity(hum_top)

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DQRID : D030919.9

Start Date	Start Time	End Date	End Time
08/30/2003	1500	09/02/2003	2100

Subject:	SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect
DataStreams:	sgp15ebbrE18.a1, sgp15ebbrE18.b1, sgp30ebbrE18.a1, sgp30ebbrE18.b1, sgp5ebbrE18.a1
Description:	The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night.
Measurements:	sgp15ebbrE18.a1: Net radiation(mv_q) sgp30ebbrE18.b1: latent heat flux(e) net radiation(q) h(h) sgp15ebbrE18.b1: Net radiation(mv_q) sgp5ebbrE18.a1: net radiation(q) sgp30ebbrE18.a1: h(h) net radiation(q) latent heat flux(e)

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DQRID : D031204.16

Start Date	Start Time	End Date	End Time
10/28/2003	2225	10/28/2003	2315

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks.
Measurements:	sgp5ebbrE18.b1: Temperature of bottom humidity sensor chamber(thum_bot) top air temperature(tair_top) Top humidity(hum_top) top vapor pressure(vp_top) Temperature of the top humidity chamber(thum_top) bottom air temperature(tair_bot) Bottom humidity(hum_bot) bottom vapor pressure(vp_bot) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Temperature of left humidity sensor chamber(rr_thum_l) Temperature of right humidity sensor chamber(rr_thum_r) Right relative humidity(mv_hum_r) Left air temperature(tair_l) Left relative humidity(mv_hum_l) Right air temperature(tair_r)

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DQRID : D040206.1

Start Date	Start Time	End Date	End Time
01/26/2004	1915	04/13/2004	2045

Subject:	SGP/EBBR/E18 - AEM Sitting At Home 15 Position
DataStreams:	sgp15ebbrE18.b1, sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	After replacement of the AEM on 1/26/04, it exchanged briefly, then sat at the home 15 position until another replacement was available.
Measurements:	sgp5ebbrE18.b1: Temperature of bottom humidity sensor chamber(thum_bot) top air temperature(tair_top) Top humidity(hum_top) top vapor pressure(vp_top) Temperature of the top humidity chamber(thum_top) bottom air temperature(tair_bot) Bottom humidity(hum_bot) bottom vapor pressure(vp_bot) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Left air temperature(tair_l) Right air temperature(tair_r) sgp30baebbrE18.c1: Temperature of the top humidity chamber(thum_top) top air temperature(tair_top) bottom air temperature(tair_bot) bottom vapor pressure(vp_bot) Temperature of bottom humidity sensor chamber(thum_bot) h(h) Top humidity(hum_top) Best estimate Latent heat flux(ecomb) Aerodynamic Sensible heat flux(ah) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) Bottom humidity(hum_bot) Aerodynamic Latent heat flux(ale) top vapor pressure(vp_top) Best estimate Sensible heat flux(hcomb) latent heat flux(e)

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DQRID : D040304.17

Start Date	Start Time	End Date	End Time
01/28/2004	0140	01/28/2004	0305
02/05/2004	0145	02/05/2004	0520

Subject:	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes.
Measurements:	sgp5ebbrE18.b1: vector wind speed(res_ws) scalar wind speed(wind_s) sgp30ebbrE18.b1: vector wind speed(res_ws) scalar wind speed(wind_s) sgp15ebbrE18.b1: scalar wind speed(wind_s)

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DQRID : D040304.18

Start Date	Start Time	End Date	End Time
01/28/2004	0140	01/28/2004	0305

Subject:	SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice
DataStreams:	sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect.
Measurements:	sgp5ebbrE18.b1: standard deviation of wind direction (sigma theta)(sigma_wd) wind direction (relative to true north)(wind_d) vector wind speed(res_ws) sgp30ebbrE18.b1: wind direction (relative to true north)(wind_d) standard deviation of wind direction (sigma theta)(sigma_wd) vector wind speed(res_ws)

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DQRID : D040505.3

Start Date	Start Time	End Date	End Time
04/19/2004	0500	06/13/2004	1700

Subject:	SGP/EBBR/E18 - Pressure Low
DataStreams:	sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Pressure readings suddenly dropped to unrealistic levels. Sensible Heat Flux was underestimated and Latent Heat Flux was overestimated because of this problem.
Measurements:	sgp5ebbrE18.b1: Retrieved pressure profile(pres) sgp30ebbrE18.b1: Retrieved pressure profile(pres) latent heat flux(e) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h)

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DQRID : D040723.4

Start Date	Start Time	End Date	End Time
06/28/2004	1300	07/28/2004	1500

Subject:	SGP/EBBR/E18 - Soil Temperature and Moisture Probes in Set #1 Spiked Outputs
DataStreams:	sgp30ebbrE18.b1
Description:	Soil moisture #1 and soil temperature #1 occasionally spiked at the same time. Little sensible and latent heat flux data were affected.
Measurements:	sgp30ebbrE18.b1: 0-5 cm integrated soil temperature, site 2(ts1) latent heat flux(e) soil heat flow, site 1(g1) h(h) 0-5 cm change in soil heat storage with time, site 2(ces1) volumetric soil moisture, site 1(sm1)

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DQRID : D040813.6

Start Date	Start Time	End Date	End Time
07/06/2004	1830	07/06/2004	2100

Subject:	SGP/EBBR/E18 - Soil Temperature #2 Incorrect
DataStreams:	sgp30ebbrE18.b1
Description:	Soil Temperature #2 was incorrect during the indicated period. Average soil heat flow, sensible heat flux, and latent heat flux are incorrect, as a result.
Measurements:	sgp30ebbrE18.b1: soil heat flow, site 2(g2) latent heat flux(e) Soil heat capacity 2(cs2) h(h) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm integrated soil temperature, site 2(ts2) average surface soil heat flow(ave_shf)

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DQRID : D041222.14

Start Date	Start Time	End Date	End Time
09/28/2004	2230	09/28/2004	2300

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks.
Measurements:	sgp5ebbrE18.b1: Temperature of bottom humidity sensor chamber(thum_bot) top air temperature(tair_top) Top humidity(hum_top) top vapor pressure(vp_top) Temperature of the top humidity chamber(thum_top) bottom air temperature(tair_bot) Bottom humidity(hum_bot) bottom vapor pressure(vp_bot) sgp30ebbrE18.b1: top air temperature(tair_top) latent heat flux(e) bottom vapor pressure(vp_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Bottom humidity(hum_bot) Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Top humidity(hum_top) bottom air temperature(tair_bot) top vapor pressure(vp_top) sgp15ebbrE18.b1: Temperature of left humidity sensor chamber(rr_thum_l) Temperature of right humidity sensor chamber(rr_thum_r) Right relative humidity(mv_hum_r) Left air temperature(tair_l) Left relative humidity(mv_hum_l) Right air temperature(tair_r)

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DQRID : D050206.12

Start Date	Start Time	End Date	End Time
01/05/2005	1810	01/06/2005	2045

Subject:	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes.
Measurements:	sgp5ebbrE18.b1: vector wind speed(res_ws) scalar wind speed(wind_s) sgp30ebbrE18.b1: vector wind speed(res_ws) scalar wind speed(wind_s) sgp15ebbrE18.b1: scalar wind speed(wind_s)

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DQRID : D050207.8

Start Date	Start Time	End Date	End Time
01/07/2005	0010	01/07/2005	1550

Subject:	SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect.
Measurements:	sgp5ebbrE18.b1: standard deviation of wind direction (sigma theta)(sigma_wd) wind direction (relative to true north)(wind_d) vector wind speed(res_ws) sgp30ebbrE18.b1: wind direction (relative to true north)(wind_d) standard deviation of wind direction (sigma theta)(sigma_wd) vector wind speed(res_ws) sgp15ebbrE18.b1: Wind direction (relative to true north)(mv_wind_d)

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DQRID : D050719.11

Start Date	Start Time	End Date	End Time
04/01/2001	0000	03/30/2005	0000

Subject:	SGP/EBBR/E18 - Improved EBBR CR10 Program
DataStreams:	sgp30ebbrE18.b1
Description:	Effective 20050330.0000, the EBBR.E18 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050330, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE18.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE18.a1).
Measurements:	sgp30ebbrE18.b1: latent heat flux(e) h(h) average surface soil heat flow(ave_shf)

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DQRID : D051106.10

Start Date	Start Time	End Date	End Time
07/27/2005	0730	08/03/2005	2100

Subject:	SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The net radiometer top dome was broken and water got inside, making the net radiation, and sensible and latent heat flux measurements incorrect.
Measurements:	sgp5ebbrE18.b1: net radiation(q) sgp30ebbrE18.b1: latent heat flux(e) net radiation(q) h(h) sgp15ebbrE18.b1: Net radiation(mv_q)

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DQRID : D051106.26

Start Date	Start Time	End Date	End Time
03/01/2005	2330	03/30/2005	0000

Subject:	SGP/EBBR/E18 - Average Soil Heat Flux Incorrect
DataStreams:	sgp30ebbrE18.b1
Description:	A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting in both sensible and latent heat fluxes being approximately 20 watts per meter squared too large during the middle of the day.
Measurements:	sgp30ebbrE18.b1: latent heat flux(e) h(h) average surface soil heat flow(ave_shf)

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DQRID : D051111.13

Start Date	Start Time	End Date	End Time
10/13/2003	0000	07/22/2005	2359

Subject:	SGP/EBBR/E18 - metadata corrections
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E18 data collected by ARM back to the installation of the instrument in July 1997. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for the systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric")
Measurements:	sgp5ebbrE18.b1: base time(base_time) sgp30ebbrE18.b1: base time(base_time) sgp15ebbrE18.b1: base time(base_time)

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DQRID : D060501.17

Start Date	Start Time	End Date	End Time
01/22/2006	0000	01/26/2006	0530
02/18/2006	0400	02/18/2006	2030
02/20/2006	0200	02/24/2006	1630
03/31/2006	0530	03/31/2006	0900

Subject:	SGP/EBBR/E18 - Wind Speed Zero
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Wind Speed was zero, presumably because the sensor was frozen stopped during freezing rain.
Measurements:	sgp5ebbrE18.b1: vector wind speed(res_ws) scalar wind speed(wind_s) sgp30ebbrE18.b1: vector wind speed(res_ws) scalar wind speed(wind_s) sgp15ebbrE18.b1: scalar wind speed(wind_s)

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DQRID : D060818.6

Start Date	Start Time	End Date	End Time
05/31/2006	0430	06/02/2006	2130

Subject:	SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The net radiometer dome was cracked and water had gotten in, resulting in incorrect net radiation measurements and therefore incorrect sensible and latent heat flux measurements.
Measurements:	sgp5ebbrE18.b1: net radiation(q) sgp30ebbrE18.b1: latent heat flux(e) net radiation(q) h(h) sgp15ebbrE18.b1: Net radiation(mv_q)

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DQRID : D061103.3

Start Date	Start Time	End Date	End Time
10/30/2006	2200	11/07/2006	2130

Subject:	SGP/EBBR/E18 - Sensible and Latent Heat Fluxes Incorrect
DataStreams:	sgp30ebbrE18.b1
Description:	Sensible and latent heat fluxes were incorrect during this period because the AEM was not exchanging.
Measurements:	sgp30ebbrE18.b1: top air temperature(tair_top) bottom air temperature(tair_bot) latent heat flux(e) bottom vapor pressure(vp_bot) Temperature of the top humidity chamber(thum_top) top vapor pressure(vp_top) Top humidity(hum_top) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Temperature of bottom humidity sensor chamber(thum_bot) Bottom humidity(hum_bot)

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DQRID : D080424.1

Start Date	Start Time	End Date	End Time
04/15/2008	0030	05/06/2008	2110

Subject:	SGP/EBBR/E18 - Soil Heat Flow #4 Offscale Low; Sensible and Latent Heat Flux Sometimes Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1
Description:	Soil heat flow #4 was sometimes lower than the lower limit imposed in the EBBR programming; sensible and latent heat flux were therefore deemed to be suspect during those times. The cause of the low values is not clear, but the values are not reasonable for the vegetation type at EF18.
Measurements:	sgp30ebbrE18.b1: 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow, site 4(shf4) latent heat flux(e) soil heat flow, site 1(g1) h(h) soil heat flow, site 4(g4) average surface soil heat flow(ave_shf) sgp15ebbrE18.b1: Soil heat flow 4(mv_hft4)

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DQRID : D080702.2

Start Date	Start Time	End Date	End Time
05/06/2008	1215	06/17/2008	2120

Subject:	SGP/EBBR/E18 - SHF #4 Measurements Too Low; Sensible and Latent Heat Fluxes Suspect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1
Description:	Soil heat flow #4 was replaced at the beginning of this period. However, the soil heat flow measurements from that sensor were sometimes still lower than the lower limit imposed in the EBBR programming; sensible and latent heat flux were therefore deemed to be suspect during those times. The cause of the low values could not be determined, but the values are not reasonable for the vegetation type at EF18. To remedy the situation, the soil heat flow sensor calibration was changed so that the sensor provided measurements that resembled the other four soil heat flow sensor measurements. Soil heat flow measurements have been reasonable since the calibration change.
Measurements:	sgp30ebbrE18.b1: 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) 5 cm soil heat flow, site 4(shf4) latent heat flux(e) h(h) soil heat flow, site 4(g4) average surface soil heat flow(ave_shf) sgp15ebbrE18.b1: Soil heat flow 4(mv_hft4)

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