Data Quality Reports for Session: 137537 User: lmladek771 Completed: 09/21/2011


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D080428.2TWP/SMET/C1 - Reprocess: ORG Data has very small rainrate valuestwpsmet60sC1.b1


DQRID : D080428.2
Start DateStart TimeEnd DateEnd Time
08/01/2004000006/30/20102359
Subject:
TWP/SMET/C1 - Reprocess: ORG Data has very small rainrate values
DataStreams:twpsmet60sC1.b1
Description:
The ORG data is collected via analog signal and not digital.  Therefore, we continuously 
collect data even when no rain is occurring.  We also capture small events such as leaves, 
large bugs, dust, etc blowing through the measurement path.  Because this discrete event 
occurs quickly the value is usually captured for 1 or 2 seconds.  This value is then 
averaged to the minute producing rainrate on the order of .009 mm/hr or less.  These values 
are not indicative of rain and should be removed from the record or summing over long 
periods can bias the climate record.  We are reprocessing the data to remove these small 
values and are adjusting the collection program to remove them before ingest.
Measurements:twpsmet60sC1.b1:
  • Precipitation minimum(precip_min)
  • Precipitation maximum(precip_max)
  • precip_sd
  • Precipitation mean(precip_mean)


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