Data Quality Reports for Session: 138827 User: arunchandr Completed: 11/18/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D100727.5SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxessgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1
D101004.2SGP/EBBR/E13 - Net Radiation Too Largesgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1


DQRID : D100727.5
Start DateStart TimeEnd DateEnd Time
07/06/2010193007/21/20101400
Subject:
SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxes
DataStreams:sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1
Description:
The multiplexer to which the air temperatures were connected experienced a problem, 
resulting in incorrect sensible and latent heat fluxes at times.
Measurements:sgp15ebbrE13.b1:
  • temp_air_right
  • temp_air_left
sgp5ebbrE13.b1:
  • temp_air_top
  • temp_air_bottom
sgp30ebbrE13.b1:
  • Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
  • temp_air_bottom
  • bowen_ratio
  • temp_air_top
  • Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

Back To Table of Contents

DQRID : D101004.2
Start DateStart TimeEnd DateEnd Time
07/21/2010133010/01/20102000
Subject:
SGP/EBBR/E13 - Net Radiation Too Large
DataStreams:sgp5ebbrE13.b1, sgp15ebbrE13.b1, sgp30ebbrE13.b1
Description:
The EBBR Net Radiation (Rn) values maintained a ~200 Wm^-2 reading because of poor cable 
lead connections.  Sensible and latent heat fluxes were therefore overestimated.

Sensible (H) and latent heat (LE) fluxes can be estimated in the following way:

H (new) = H/[1 + (EBBR Rn - SIRS net radiation)/SIRS net radiation]

LE (new) = LE/[1 + (EBBR Rn - SIRS net radiation)/SIRS net radiation]
Measurements:sgp15ebbrE13.b1:
  • net_radiation_mv
sgp5ebbrE13.b1:
  • Radiation, net(net_radiation)
sgp30ebbrE13.b1:
  • Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
  • Radiation, net(net_radiation)
  • Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

Back To Table of Contents


END OF DATA