DQRs for Session: 113453 User:wljCompleted: 07-31-2008

Data Quality Reports for Session: 113453 User: wlj Completed: 07/31/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D000531.2	SGP/EBBR/E13 - Data Missing Due to Power Failure	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
D000531.3	SGP/EBBR/E13 - Data missing or corrupted	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
D000531.4	SGP/EBBR/E13 - failure of sensors	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
D000531.5	SGP/EBBR/E13 - Failed Right Humidity Probe	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
D000628.1	SGP/EBBR/E13- Left humidity probe replaced	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0

DQRID : D000531.2

Start Date	Start Time	End Date	End Time
07/17/1995	0800	07/17/1995	2200

Subject:	SGP/EBBR/E13 - Data Missing Due to Power Failure
DataStreams:	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
Description:	A power failure following a lightning strike to the central cluster area resulted in the EBBR data being missing for this period of time.
Measurements:	sgp5ebbrE13.a0: Time offset of tweaks from base_time(time_offset) Dummy altitude for Zeb(alt) Retrieved pressure profile(pres) bottom air temperature(tair_bot) top vapor pressure(vp_top) vector wind speed(res_ws) lat(lat) bottom vapor pressure(vp_bot) standard deviation of wind direction (sigma theta)(sigma_wd) Temperature of the top humidity chamber(thum_top) Bottom humidity(hum_bot) Top humidity(hum_top) scalar wind speed(wind_s) lon(lon) wind direction (relative to true north)(wind_d) net radiation(q) Home signal(home) Temperature of bottom humidity sensor chamber(thum_bot) top air temperature(tair_top) Reference Thermistor Temperature(tref) base time(base_time) sgp5ebbrE13.00: null(Raw data stream - documentation not supported) sgp15ebbrE13.a1: Soil temperature 1(rr_ts1) Dummy altitude for Zeb(alt) Soil heat flow 3(mv_hft3) Temperature of right humidity sensor chamber(rr_thum_r) Soil temperature 2(rr_ts2) Soil temperature 3(rr_ts3) lon(lon) Soil moisture 3(r_sm3) Soil moisture 2(r_sm2) Soil temperature 4(rr_ts4) Soil heat flow 2(mv_hft2) Right air temperature(tair_r) Atmospheric pressure(mv_pres) Battery(bat) lat(lat) Soil heat flow 5(mv_hft5) Soil temperature 5(rr_ts5) Left relative humidity(mv_hum_l) Reference temperature(rr_tref) Time offset of tweaks from base_time(time_offset) base time(base_time) Wind direction (relative to true north)(mv_wind_d) Soil moisture 1(r_sm1) scalar wind speed(wind_s) Soil heat flow 1(mv_hft1) Temperature of left humidity sensor chamber(rr_thum_l) Soil heat flow 4(mv_hft4) Signature(signature) Left air temperature(tair_l) Soil moisture 5(r_sm5) Right relative humidity(mv_hum_r) Net radiation(mv_q) Home signal(mv_home) Soil moisture 4(r_sm4) sgp30ebbrE13.a1: soil heat flow, site 1(g1) Reference Thermistor Temperature(tref) 0-5 cm integrated soil temperature, site 2(ts2) latent heat flux(e) Temperature of bottom humidity sensor chamber(thum_bot) 5 cm soil heat flow, site 3(shf3) average surface soil heat flow(ave_shf) Bottom humidity(hum_bot) bottom air temperature(tair_bot) soil heat flow, site 5(g5) lat(lat) standard deviation of wind direction (sigma theta)(sigma_wd) 5 cm soil heat flow, site 4(shf4) soil heat flow, site 3(g3) Soil heat capacity 1(cs1) Exchange mechanism position indicator (0 to 15 min)(home_15) 5 cm soil heat flow, site 5(shf5) 0-5 cm change in soil heat storage with time, site 5(ces5) wind direction (relative to true north)(wind_d) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) 0-5 cm integrated soil temperature, site 3(ts3) 0-5 cm integrated soil temperature, site 5(ts5) net radiation(q) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) Temperature of the top humidity chamber(thum_top) Dummy altitude for Zeb(alt) soil heat flow, site 2(g2) top air temperature(tair_top) 0-5 cm integrated soil temperature, site 2(ts1) volumetric soil moisture, site 5(sm5) Soil heat capacity 3(cs3) top vapor pressure(vp_top) vector wind speed(res_ws) Exchange mechanism position indicator (15 to 30 min)(home_30) volumetric soil moisture, site 4(sm4) Soil heat capacity 4(cs4) Time offset of tweaks from base_time(time_offset) Soil heat capacity 5(cs5) Soil heat capacity 2(cs2) Retrieved pressure profile(pres) h(h) 0-5 cm change in soil heat storage with time, site 2(ces2) base time(base_time) 0-5 cm integrated soil temperature, site 4(ts4) volumetric soil moisture, site 3(sm3) 0-5 cm change in soil heat storage with time, site 3(ces3) 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) volumetric soil moisture, site 2(sm2) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) scalar wind speed(wind_s) 5 cm soil heat flow, site 1(shf1) volumetric soil moisture, site 1(sm1) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) 5 cm soil heat flow, site 2(shf2) 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) lon(lon) bottom vapor pressure(vp_bot) Top humidity(hum_top) soil heat flow, site 4(g4)

Back To Table of Contents

DQRID : D000531.3

Start Date	Start Time	End Date	End Time
07/24/1995	1300	07/24/1995	2300

Subject:	SGP/EBBR/E13 - Data missing or corrupted
DataStreams:	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
Description:	Data are missing or corrupted during this period due to a broken wire on the solar panel that lowered the voltage to the system and maintenance that took place from 1530 to about 2215 GMT.
Measurements:	sgp5ebbrE13.a0: Time offset of tweaks from base_time(time_offset) Dummy altitude for Zeb(alt) Retrieved pressure profile(pres) bottom air temperature(tair_bot) top vapor pressure(vp_top) vector wind speed(res_ws) lat(lat) bottom vapor pressure(vp_bot) standard deviation of wind direction (sigma theta)(sigma_wd) Temperature of the top humidity chamber(thum_top) Bottom humidity(hum_bot) Top humidity(hum_top) scalar wind speed(wind_s) lon(lon) wind direction (relative to true north)(wind_d) net radiation(q) Home signal(home) Temperature of bottom humidity sensor chamber(thum_bot) top air temperature(tair_top) Reference Thermistor Temperature(tref) base time(base_time) sgp5ebbrE13.00: null(Raw data stream - documentation not supported) sgp15ebbrE13.a1: Soil temperature 1(rr_ts1) Dummy altitude for Zeb(alt) Soil heat flow 3(mv_hft3) Temperature of right humidity sensor chamber(rr_thum_r) Soil temperature 2(rr_ts2) Soil temperature 3(rr_ts3) lon(lon) Soil moisture 3(r_sm3) Soil moisture 2(r_sm2) Soil temperature 4(rr_ts4) Soil heat flow 2(mv_hft2) Right air temperature(tair_r) Atmospheric pressure(mv_pres) Battery(bat) lat(lat) Soil heat flow 5(mv_hft5) Soil temperature 5(rr_ts5) Left relative humidity(mv_hum_l) Reference temperature(rr_tref) Time offset of tweaks from base_time(time_offset) base time(base_time) Wind direction (relative to true north)(mv_wind_d) Soil moisture 1(r_sm1) scalar wind speed(wind_s) Soil heat flow 1(mv_hft1) Temperature of left humidity sensor chamber(rr_thum_l) Soil heat flow 4(mv_hft4) Signature(signature) Left air temperature(tair_l) Soil moisture 5(r_sm5) Right relative humidity(mv_hum_r) Net radiation(mv_q) Home signal(mv_home) Soil moisture 4(r_sm4) sgp30ebbrE13.a1: soil heat flow, site 1(g1) Reference Thermistor Temperature(tref) 0-5 cm integrated soil temperature, site 2(ts2) latent heat flux(e) Temperature of bottom humidity sensor chamber(thum_bot) 5 cm soil heat flow, site 3(shf3) average surface soil heat flow(ave_shf) Bottom humidity(hum_bot) bottom air temperature(tair_bot) soil heat flow, site 5(g5) lat(lat) standard deviation of wind direction (sigma theta)(sigma_wd) 5 cm soil heat flow, site 4(shf4) soil heat flow, site 3(g3) Soil heat capacity 1(cs1) Exchange mechanism position indicator (0 to 15 min)(home_15) 5 cm soil heat flow, site 5(shf5) 0-5 cm change in soil heat storage with time, site 5(ces5) wind direction (relative to true north)(wind_d) 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2) 0-5 cm integrated soil temperature, site 3(ts3) 0-5 cm integrated soil temperature, site 5(ts5) net radiation(q) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) Temperature of the top humidity chamber(thum_top) Dummy altitude for Zeb(alt) soil heat flow, site 2(g2) top air temperature(tair_top) 0-5 cm integrated soil temperature, site 2(ts1) volumetric soil moisture, site 5(sm5) Soil heat capacity 3(cs3) top vapor pressure(vp_top) vector wind speed(res_ws) Exchange mechanism position indicator (15 to 30 min)(home_30) volumetric soil moisture, site 4(sm4) Soil heat capacity 4(cs4) Time offset of tweaks from base_time(time_offset) Soil heat capacity 5(cs5) Soil heat capacity 2(cs2) Retrieved pressure profile(pres) h(h) 0-5 cm change in soil heat storage with time, site 2(ces2) base time(base_time) 0-5 cm integrated soil temperature, site 4(ts4) volumetric soil moisture, site 3(sm3) 0-5 cm change in soil heat storage with time, site 3(ces3) 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5) volumetric soil moisture, site 2(sm2) 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4) scalar wind speed(wind_s) 5 cm soil heat flow, site 1(shf1) volumetric soil moisture, site 1(sm1) 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1) 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3) 5 cm soil heat flow, site 2(shf2) 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) lon(lon) bottom vapor pressure(vp_bot) Top humidity(hum_top) soil heat flow, site 4(g4)

Back To Table of Contents

DQRID : D000531.4

Start Date	Start Time	End Date	End Time
07/17/1995	2200	07/24/1995	2300

Subject:	SGP/EBBR/E13 - failure of sensors
DataStreams:	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
Description:	A lightning strike to the central cluster area shortly after 0800 GMT on July 17 caused failure of several EBBR sensors: both humidity probes, the barometer, soil heat flux #3, soil moisture # 1 and the wind direction. These failed sensors caused sensible, latent, and average soil heat flux to be incorrect until site operations performed maintenance on July 24th. Site Operations found a loose connection from soil moisture probe #1, removed barometer SN 6578 and replaced it with SN 6507, removed soil heat flux sensor #3 with SN 923022 and replaced it with SN 933199, repositioned the wind direction sensor - which was rotated approximately ninety degrees clockwise from its proper position, and removed the right humidity probe SN 460412 and replaced it with SN 460428.
Measurements:	sgp5ebbrE13.a0: Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Bottom humidity(hum_bot) top vapor pressure(vp_top) Top humidity(hum_top) bottom vapor pressure(vp_bot) sgp5ebbrE13.00: null(Raw data stream - documentation not supported) sgp15ebbrE13.a1: Left relative humidity(mv_hum_l) Temperature of left humidity sensor chamber(rr_thum_l) sgp30ebbrE13.a1: latent heat flux(e) top vapor pressure(vp_top) Temperature of bottom humidity sensor chamber(thum_bot) bottom vapor pressure(vp_bot) Top humidity(hum_top) Bottom humidity(hum_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Temperature of the top humidity chamber(thum_top)

Back To Table of Contents

DQRID : D000531.5

Start Date	Start Time	End Date	End Time
07/17/1995	2200	09/22/1995	2108

Subject:	SGP/EBBR/E13 - Failed Right Humidity Probe
DataStreams:	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
Description:	A lightning strike to the central cluster area on 17 July 1995 caused failure of several EBBR sensors including the right humidity probe. On July 24th, site operations removed the right humidity probe SN 460412 and replaced it with SN 460428 In less than a day the right humidity probe output soared to over 113% and has hovered around 112% since. I consider all right probe values to be incorrect due to this behavior. Without a properly functioning right humidity probe, all values of top and bottom relative humidity, top and bottom vapor pressure, Bowen ratio, and latent and sensible heat fluxes are incorrect. A working spare relative humidity probe was not available at that time. The probe was replaced with a working, calibrated probe on 22 September 1995 at about 2108 GMT. I have the examined the data since the day of the replacement and find that the new probe is working well. All E13 EBBR measurements are presently correct. The old probe S/N was 460428, the new S/N is 460413.
Measurements:	sgp5ebbrE13.a0: Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Bottom humidity(hum_bot) top vapor pressure(vp_top) Top humidity(hum_top) bottom vapor pressure(vp_bot) sgp5ebbrE13.00: null(Raw data stream - documentation not supported) sgp15ebbrE13.a1: Temperature of right humidity sensor chamber(rr_thum_r) Right relative humidity(mv_hum_r) sgp30ebbrE13.a1: latent heat flux(e) top vapor pressure(vp_top) Temperature of bottom humidity sensor chamber(thum_bot) bottom vapor pressure(vp_bot) Top humidity(hum_top) Bottom humidity(hum_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Temperature of the top humidity chamber(thum_top)

Back To Table of Contents

DQRID : D000628.1

Start Date	Start Time	End Date	End Time
07/17/1995	2200	07/25/1995	1930

Subject:	SGP/EBBR/E13- Left humidity probe replaced
DataStreams:	sgp15ebbrE13.a1, sgp30ebbrE13.a1, sgp5ebbrE13.00, sgp5ebbrE13.a0
Description:	A lightning strike to the central cluster area on 17 July 1995 caused the left humidity probe to fail. Some of the period of incorrect data has been discussed in D0000531.4. The left humidity probe was replaced on 25 July 1995 at 1925 GMT (old SN 460413, new SN 460435).
Measurements:	sgp5ebbrE13.a0: Temperature of the top humidity chamber(thum_top) Temperature of bottom humidity sensor chamber(thum_bot) Bottom humidity(hum_bot) top vapor pressure(vp_top) Top humidity(hum_top) bottom vapor pressure(vp_bot) sgp5ebbrE13.00: null(Raw data stream - documentation not supported) sgp15ebbrE13.a1: Left relative humidity(mv_hum_l) Temperature of left humidity sensor chamber(rr_thum_l) sgp30ebbrE13.a1: latent heat flux(e) top vapor pressure(vp_top) Temperature of bottom humidity sensor chamber(thum_bot) bottom vapor pressure(vp_bot) Top humidity(hum_top) Bottom humidity(hum_bot) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) h(h) Temperature of the top humidity chamber(thum_top)

Back To Table of Contents

END OF DATA