DQRID : D020117.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/30/2001013004/30/20010401Incorrect
04/16/2001024504/16/20010301Incorrect
04/01/2001114504/01/20011301Incorrect
04/30/2001174504/30/20012101Incorrect
04/17/2001154504/18/20011601Incorrect
04/14/2001074504/14/20011501Incorrect
04/15/2001144504/15/20011831Incorrect
04/12/2001013004/12/20011331Incorrect
04/25/2001103004/25/20011331Incorrect
04/19/2001061504/19/20011601Incorrect
04/13/2001053004/13/20011631Incorrect
04/25/2001021504/25/20010331Incorrect
04/15/2001091504/15/20011231Incorrect
04/30/2001061504/30/20011601Incorrect
04/23/2001051504/24/20010001Incorrect
04/17/2001014504/17/20010931Incorrect
04/29/2001150004/29/20011601Incorrect
04/16/2001051504/16/20012301Incorrect
more
Subject:
SGP/EBBR/E2 - Reprocess: E2 EBBR Soil Temperature #2 Incorrect
DataStreams:sgp30ebbrE2.b1, sgp15ebbrE2.b1
Description:
Soil Temperature #2 was intermittently incorrect.
The cause is unknown.

The indicated measurements that are calculated using 
soil temperature are also incorrect.

Soil moisture #2 (30 minute only) was also affected 
because version 6 of the EBBR datalogger program 
uses a multiplication of soil temperature and soil 
moisture as part of the adjustment of soil moisture for
soil temperature.  This was discovered to be a poor 
technique soon after it was implemented, but E2 will
continue to use version 6 until a replacement EBBR
unit is available.  When soil temperature #2 is large
negative, soil moisture #2 is often twice as large
as it should be.

EBBR unit changeout dates are listed on the EBBR 
instrument web page.
Suggestions: 
Measurements:sgp30ebbrE2.b1:
  • soil_moisture_2
  • surface_soil_heat_flux_2
  • energy_storage_change_2
  • soil_temp_2
  • latent_heat_flux
  • surface_soil_heat_flux_avg
  • sensible_heat_flux
more
sgp15ebbrE2.b1:
  • soil_temp_2_rr
more

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