Data Quality Reports for Session: 152691 User: vpayne Completed: 08/30/2013


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D120215.4SGP/MERGESONDE/C1 - Reprocess: Precip data incorrectsgpmergesonde1maceC1.c1


DQRID : D120215.4
Start DateStart TimeEnd DateEnd Time
01/01/2006000005/30/20122359
Subject:
SGP/MERGESONDE/C1 - Reprocess: Precip data incorrect
DataStreams:sgpmergesonde1maceC1.c1
Description:
All precip values are incorrectly reported during the period:  

From 20060101-20101231 all precip values are incorrectly reported as missing, or -9999.  

From 20110101-present all precip values are reported as 0 even though the qc_precip 
variable flags the data as missing, or -9999. 

The precipitation data from the co-located surface met station were not actually missing, 
but the MERGESONDE VAP did not properly ingest these data.  While the 0 precip values 
reported after 20110101 in MERGESONDE may be correct on days with no precip, they are not 
actually tied to the measurements from the co-located rain gauge and are due to a VAP 
software error.

To correct this issue, the MERGESONDE software will need to be corrected so the data can 
be reprocessed.  Because precip is a secondary variable in MERGESONDE, this issue is 
considered low priority and the VAP will not be reprocessed until a sufficient number of 
issues in the VAP have been identified.
Measurements:sgpmergesonde1maceC1.c1:
  • Precipitation, total(precip)


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