Data Quality Reports for Session: 132883 User: teodor1geo Completed: 01/31/2011


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D090508.1GRW/ECOR/M1 - Reprocessed: ECOR Wind direction offset correctedgrw30ecorM1.b1
D110118.2GRW/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraft grw30ecorM1.b1


DQRID : D090508.1
Start DateStart TimeEnd DateEnd Time
04/15/2009153005/08/20091830
Subject:
GRW/ECOR/M1 - Reprocessed: ECOR Wind direction offset corrected
DataStreams:grw30ecorM1.b1
Description:
The ECOR sonic anemometer was initially aligned to an east declination
instead of a west declination.  For the period stated, ECOR wind direction
was 21 degrees too high.

Data were reprocessed 20090602 and archived 20090619.
Measurements:grw30ecorM1.b1:
  • wind_dir


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DQRID : D110118.2
Start DateStart TimeEnd DateEnd Time
04/15/2009153010/11/20100800
Subject:
GRW/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraft
DataStreams:grw30ecorM1.b1
Description:
Aircraft landings, departures, and running aircraft on the airport pad
were found to produce spikes in the half hourly CO2 flux and small spikes in CO2 
concentration on many days during the entire deployment of the AMF1 at GRW.  This influence 
sometimes occurred multiple periods in a day;
this was typical of the year of data.  The spikes range from only several micromoles s-1 
m-2 to one hundred or more for flux (a typical spike was in the twenties) and near zero to 
1.0 mmoles m-3 for CO2 concentration (typically around 0.15).

Occasionally an influence on water vapor density was detected, but this was fairly rare 
and usually of very small magnitude.

----------------------------------------
DQR DATASTREAM(S):
                grw30ecorM1.b1
                     cvar_rot_uc
                     cvar_rot_vc
                     cvar_rot_wc
                     cvar_tc
                     cvar_uc
                     cvar_vc
                     cvar_wc
                     fc
                     mean_c
                     var_c
Measurements:grw30ecorM1.b1:
  • measurements contained in this datastream are unknown


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