DQRs for Session: 111671 User:yanCompleted: 04-22-2008

Data Quality Reports for Session: 111671 User: yan Completed: 04/22/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020117.4	SGP/EBBR/E2 - Reprocess: E2 EBBR Soil Temperature #2 Incorrect	sgp15ebbrE2.a1, sgp15ebbrE2.b1, sgp30ebbrE2.a1, sgp30ebbrE2.b1

DQRID : D020117.4

Start Date	Start Time	End Date	End Time
04/01/2001	1145	04/01/2001	1301
04/12/2001	0130	04/12/2001	1331
04/13/2001	0530	04/13/2001	1631
04/14/2001	0745	04/14/2001	1501
04/15/2001	0915	04/15/2001	1231
04/15/2001	1445	04/15/2001	1831
04/16/2001	0245	04/16/2001	0301
04/16/2001	0515	04/16/2001	2301
04/17/2001	0145	04/17/2001	0931
04/17/2001	1545	04/18/2001	1601
04/19/2001	0615	04/19/2001	1601
04/23/2001	0515	04/24/2001	0001
04/25/2001	0215	04/25/2001	0331
04/25/2001	1030	04/25/2001	1331
04/29/2001	1500	04/29/2001	1601
04/30/2001	0130	04/30/2001	0401
04/30/2001	0615	04/30/2001	1601
04/30/2001	1745	04/30/2001	2101

Subject:	SGP/EBBR/E2 - Reprocess: E2 EBBR Soil Temperature #2 Incorrect
DataStreams:	sgp15ebbrE2.a1, sgp15ebbrE2.b1, sgp30ebbrE2.a1, sgp30ebbrE2.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.
Measurements:	sgp30ebbrE2.b1: 0-5 cm integrated soil temperature, site 2(ts2) latent heat flux(e) h(h) 0-5 cm change in soil heat storage with time, site 2(ces2) volumetric soil moisture, site 2(sm2) average surface soil heat flow(ave_shf) soil heat flow, site 2(g2) sgp15ebbrE2.b1: Soil temperature 2(rr_ts2) sgp15ebbrE2.a1: Soil temperature 2(rr_ts2) sgp30ebbrE2.a1: latent heat flux(e) soil heat flow, site 2(g2) volumetric soil moisture, site 2(sm2) average surface soil heat flow(ave_shf) 0-5 cm change in soil heat storage with time, site 2(ces2) 0-5 cm integrated soil temperature, site 2(ts2) h(h)

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