Data Quality Reports for Session: 108698 User: vinukollu Completed: 10/31/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D021113.1SGP/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
D021113.2SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR
Header		sgp30baebbrE13.c1, sgp30baebbrE15.c1, sgp30baebbrE20.c1, sgp30baebbrE22.c1,
sgp30baebbrE26.c1, sgp30baebbrE4.c1, sgp30baebbrE7.c1, sgp30baebbrE8.c1, sgp30baebbrE9.c1
D030712.17SGP/EBBR/E13 - 6 Month Checkssgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1
D030919.8SGP/EBBR/E13 - Water In Net Radiometer; Surface Fluxes are Incorrectsgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1
D031031.5SGP/EBBR/E13 - Water in Net Radiometer, Surface Fluxes Incorrectsgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1
D031204.10SGP/EBBR/E13 - 6 Month Checkssgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
D031222.16SGP/EBBR/E13 - Wind Speed Sensor Frozen By Ice Stormsgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
D031222.17SGP/EBBR/E13 - Net Radiometer Iced Over During Stormsgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
D050114.7SGP/EBBR/E13/E15/E20/E22/E26/E4/E7/E8/E9 - BA EBBR VAP Bulk Aerodynamicssgp30baebbrE13.c1, sgp30baebbrE15.c1, sgp30baebbrE20.c1, sgp30baebbrE22.c1,
sgp30baebbrE26.c1, sgp30baebbrE4.c1, sgp30baebbrE7.c1, sgp30baebbrE8.c1, sgp30baebbrE9.c1
D050624.7SGP/EBBR/E13 - Improved EBBR CR10 Programsgp30ebbrE13.b1
D051111.11SGP/EBBR/E13 - metadata correctionssgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1


DQRID : D021113.1
Start DateStart TimeEnd DateEnd Time
04/01/2001000006/18/20032359
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 : D021113.2
Start DateStart TimeEnd DateEnd Time
10/01/1995000006/18/20032359
Subject:
SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header
DataStreams:sgp30baebbrE13.c1, sgp30baebbrE15.c1, sgp30baebbrE20.c1, sgp30baebbrE22.c1,
sgp30baebbrE26.c1, sgp30baebbrE4.c1, sgp30baebbrE7.c1, sgp30baebbrE8.c1, sgp30baebbrE9.c1
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:sgp30baebbrE26.c1:
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 5(cs5)
  • Soil heat capacity 4(cs4)
  • Soil heat capacity 2(cs2)
sgp30baebbrE13.c1:
  • Soil heat capacity 5(cs5)
  • Soil heat capacity 2(cs2)
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 4(cs4)
sgp30baebbrE4.c1:
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 4(cs4)
  • Soil heat capacity 2(cs2)
  • Soil heat capacity 5(cs5)
sgp30baebbrE8.c1:
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 2(cs2)
  • Soil heat capacity 5(cs5)
  • Soil heat capacity 4(cs4)
sgp30baebbrE7.c1:
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 2(cs2)
  • Soil heat capacity 4(cs4)
  • Soil heat capacity 5(cs5)
sgp30baebbrE22.c1:
  • Soil heat capacity 4(cs4)
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 5(cs5)
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 2(cs2)
sgp30baebbrE15.c1:
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 4(cs4)
  • Soil heat capacity 5(cs5)
  • Soil heat capacity 2(cs2)
sgp30baebbrE20.c1:
  • Soil heat capacity 1(cs1)
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 5(cs5)
  • Soil heat capacity 4(cs4)
  • Soil heat capacity 2(cs2)
sgp30baebbrE9.c1:
  • Soil heat capacity 3(cs3)
  • Soil heat capacity 5(cs5)
  • Soil heat capacity 2(cs2)
  • Soil heat capacity 4(cs4)
  • Soil heat capacity 1(cs1)

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DQRID : D030712.17
Start DateStart TimeEnd DateEnd Time
05/01/2003190505/01/20031935
Subject:
SGP/EBBR/E13 -  6 Month Checks
DataStreams:sgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.a1
Description:
Many measurements were incorrect while the AEM was positioned with both aspirators at the 
same height for comparison checks.
Measurements:sgp15ebbrE13.b1:
  • Temperature of left humidity sensor chamber(rr_thum_l)
  • Left air temperature(tair_l)
  • Temperature of right humidity sensor chamber(rr_thum_r)
  • Right air temperature(tair_r)
  • Left relative humidity(mv_hum_l)
  • Right relative humidity(mv_hum_r)
sgp15ebbrE13.a1:
  • Temperature of left humidity sensor chamber(rr_thum_l)
  • Left air temperature(tair_l)
  • Right air temperature(tair_r)
  • Temperature of right humidity sensor chamber(rr_thum_r)
  • Right relative humidity(mv_hum_r)
  • Left relative humidity(mv_hum_l)
sgp5ebbrE13.a1:
  • Bottom humidity(hum_bot)
  • Temperature of bottom humidity sensor chamber(thum_bot)
  • Temperature of the top humidity chamber(thum_top)
  • top vapor pressure(vp_top)
  • top air temperature(tair_top)
  • bottom air temperature(tair_bot)
  • bottom vapor pressure(vp_bot)
  • Top humidity(hum_top)
sgp30ebbrE13.b1:
  • Bottom humidity(hum_bot)
  • ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
  • Temperature of bottom humidity sensor chamber(thum_bot)
  • h(h)
  • top air temperature(tair_top)
  • Top humidity(hum_top)
  • top vapor pressure(vp_top)
  • bottom vapor pressure(vp_bot)
  • Temperature of the top humidity chamber(thum_top)
  • latent heat flux(e)
  • bottom air temperature(tair_bot)
sgp30ebbrE13.a1:
  • latent heat flux(e)
  • top vapor pressure(vp_top)
  • Temperature of bottom humidity sensor chamber(thum_bot)
  • Bottom humidity(hum_bot)
  • ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
  • h(h)
  • Temperature of the top humidity chamber(thum_top)
  • bottom air temperature(tair_bot)
  • bottom vapor pressure(vp_bot)
  • top air temperature(tair_top)
  • Top humidity(hum_top)

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DQRID : D030919.8
Start DateStart TimeEnd DateEnd Time
04/23/2003183005/01/20032000
Subject:
SGP/EBBR/E13  - Water In Net Radiometer; Surface Fluxes are Incorrect
DataStreams:sgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.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:sgp15ebbrE13.b1:
  • Net radiation(mv_q)
sgp15ebbrE13.a1:
  • Net radiation(mv_q)
sgp30ebbrE13.b1:
  • net radiation(q)
  • latent heat flux(e)
  • h(h)
sgp5ebbrE13.a1:
  • net radiation(q)
sgp30ebbrE13.a1:
  • latent heat flux(e)
  • net radiation(q)
  • h(h)

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DQRID : D031031.5
Start DateStart TimeEnd DateEnd Time
09/29/2003180010/02/20031845
Subject:
SGP/EBBR/E13  - Water in Net Radiometer, Surface Fluxes Incorrect
DataStreams:sgp15ebbrE13.a1, sgp15ebbrE13.b1, sgp30ebbrE13.a1, sgp30ebbrE13.b1, sgp5ebbrE13.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:sgp15ebbrE13.b1:
  • Net radiation(mv_q)
sgp15ebbrE13.a1:
  • Net radiation(mv_q)
sgp30ebbrE13.b1:
  • net radiation(q)
  • latent heat flux(e)
  • h(h)
sgp5ebbrE13.a1:
  • net radiation(q)
sgp30ebbrE13.a1:
  • latent heat flux(e)
  • net radiation(q)
  • h(h)

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DQRID : D031204.10
Start DateStart TimeEnd DateEnd Time
10/13/2003183010/13/20031900
Subject:
SGP/EBBR/E13 - 6 Month Checks
DataStreams:sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
Description:
Many measurements were incorrect while the AEM was positioned with both aspirators at the 
same height for comparison checks.
Measurements:sgp15ebbrE13.b1:
  • Temperature of left humidity sensor chamber(rr_thum_l)
  • Left air temperature(tair_l)
  • Temperature of right humidity sensor chamber(rr_thum_r)
  • Right air temperature(tair_r)
  • Left relative humidity(mv_hum_l)
  • Right relative humidity(mv_hum_r)
sgp5ebbrE13.b1:
  • top air temperature(tair_top)
  • Temperature of the top humidity chamber(thum_top)
  • Bottom humidity(hum_bot)
  • bottom vapor pressure(vp_bot)
  • Temperature of bottom humidity sensor chamber(thum_bot)
  • top vapor pressure(vp_top)
  • Top humidity(hum_top)
  • bottom air temperature(tair_bot)
sgp30ebbrE13.b1:
  • Bottom humidity(hum_bot)
  • ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
  • Temperature of bottom humidity sensor chamber(thum_bot)
  • h(h)
  • Top humidity(hum_top)
  • top air temperature(tair_top)
  • top vapor pressure(vp_top)
  • bottom vapor pressure(vp_bot)
  • Temperature of the top humidity chamber(thum_top)
  • latent heat flux(e)
  • bottom air temperature(tair_bot)

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DQRID : D031222.16
Start DateStart TimeEnd DateEnd Time
12/09/2003214512/10/20030115
Subject:
SGP/EBBR/E13  - Wind Speed Sensor Frozen By Ice Storm
DataStreams:sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
Description:
The wind speed sensor was frozen stopped by ice from a storm.  The wind speed 
and residual wind speed measurements are incorrect.
Measurements:sgp15ebbrE13.b1:
  • scalar wind speed(wind_s)
sgp5ebbrE13.b1:
  • vector wind speed(res_ws)
  • scalar wind speed(wind_s)
sgp30ebbrE13.b1:
  • scalar wind speed(wind_s)
  • vector wind speed(res_ws)

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DQRID : D031222.17
Start DateStart TimeEnd DateEnd Time
12/14/2003173012/14/20031830
Subject:
SGP/EBBR/E13  - Net Radiometer Iced Over During Storm
DataStreams:sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
Description:
The net radiometer was covered with ice from a storm.  Net radiation values are incorrect, 
and are sometimes even negative during the daytime.  Sensible and latent heat fluxes are 
therefore incorrect.
Measurements:sgp15ebbrE13.b1:
  • Net radiation(mv_q)
sgp5ebbrE13.b1:
  • net radiation(q)
sgp30ebbrE13.b1:
  • net radiation(q)
  • latent heat flux(e)
  • h(h)

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DQRID : D050114.7
Start DateStart TimeEnd DateEnd Time
10/01/1995000006/30/20032330
Subject:
SGP/EBBR/E13/E15/E20/E22/E26/E4/E7/E8/E9  - BA EBBR VAP Bulk Aerodynamics
DataStreams:sgp30baebbrE13.c1, sgp30baebbrE15.c1, sgp30baebbrE20.c1, sgp30baebbrE22.c1,
sgp30baebbrE26.c1, sgp30baebbrE4.c1, sgp30baebbrE7.c1, sgp30baebbrE8.c1, sgp30baebbrE9.c1
Description:
Fixed AEM and wind speed sensor heights were improperly used in the calculation of bulk 
aerodynamic sensible and latent heat fluxes instead of site specific heights.

This resulted in either under-estimation or over-estimation of the sensible and latent 
heat fluxes.
Measurements:sgp30baebbrE26.c1:
  • Aerodynamic Sensible heat flux(ah)
  • Friction velocity(austar)
  • Aerodynamic Latent heat flux(ale)
  • Best estimate Sensible heat flux(hcomb)
  • Best estimate Latent heat flux(ecomb)
sgp30baebbrE13.c1:
  • Aerodynamic Latent heat flux(ale)
  • Friction velocity(austar)
  • Best estimate Sensible heat flux(hcomb)
  • Aerodynamic Sensible heat flux(ah)
  • Best estimate Latent heat flux(ecomb)
sgp30baebbrE4.c1:
  • Best estimate Latent heat flux(ecomb)
  • Friction velocity(austar)
  • average surface soil heat flow(ave_shf)
  • Best estimate Sensible heat flux(hcomb)
  • Aerodynamic Latent heat flux(ale)
sgp30baebbrE8.c1:
  • Aerodynamic Latent heat flux(ale)
  • Best estimate Sensible heat flux(hcomb)
  • Aerodynamic Sensible heat flux(ah)
  • Best estimate Latent heat flux(ecomb)
  • Friction velocity(austar)
sgp30baebbrE22.c1:
  • Best estimate Sensible heat flux(hcomb)
  • Friction velocity(austar)
  • Aerodynamic Sensible heat flux(ah)
  • Best estimate Latent heat flux(ecomb)
  • Aerodynamic Latent heat flux(ale)
sgp30baebbrE7.c1:
  • Best estimate Latent heat flux(ecomb)
  • Aerodynamic Sensible heat flux(ah)
  • Best estimate Sensible heat flux(hcomb)
  • Friction velocity(austar)
  • Aerodynamic Latent heat flux(ale)
sgp30baebbrE15.c1:
  • Best estimate Latent heat flux(ecomb)
  • Friction velocity(austar)
  • Best estimate Sensible heat flux(hcomb)
  • Aerodynamic Sensible heat flux(ah)
  • Aerodynamic Latent heat flux(ale)
sgp30baebbrE20.c1:
  • Aerodynamic Sensible heat flux(ah)
  • Aerodynamic Latent heat flux(ale)
  • Best estimate Sensible heat flux(hcomb)
  • Best estimate Latent heat flux(ecomb)
  • Friction velocity(austar)
sgp30baebbrE9.c1:
  • Best estimate Latent heat flux(ecomb)
  • Friction velocity(austar)
  • Aerodynamic Sensible heat flux(ah)
  • Aerodynamic Latent heat flux(ale)
  • Best estimate Sensible heat flux(hcomb)

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DQRID : D050624.7
Start DateStart TimeEnd DateEnd Time
04/01/2001000003/31/20052100
Subject:
SGP/EBBR/E13 - Improved EBBR CR10 Program
DataStreams:sgp30ebbrE13.b1
Description:
Effective 20050331.2100, the EBBR.E13 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 20050331, 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 sgp30ebbrE13.b1 data stream.  The 
earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. 
sgp30ebbrE13.a1).
Measurements:sgp30ebbrE13.b1:
  • average surface soil heat flow(ave_shf)
  • latent heat flux(e)
  • h(h)

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DQRID : D051111.11
Start DateStart TimeEnd DateEnd Time
10/13/2003000007/22/20052359
Subject:
SGP/EBBR/E13 - metadata corrections
DataStreams:sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
Description:
On 20050723, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E13 data collected by ARM back to the installation of the 
instrument in September 1992.  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 systems
3) Correction of soil type
4) Correction of soil moisture units (from "by volume" to "gravimetric")
Measurements:sgp15ebbrE13.b1:
  • base time(base_time)
sgp5ebbrE13.b1:
  • base time(base_time)
sgp30ebbrE13.b1:
  • base time(base_time)

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END OF DATA