DQR ID | Subject | Data Streams Affected |
---|
D080318.1 | SGP/EBBR/E13 - Wind direction failure | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D090313.13 | SGP/EBBR/E13 - Wind Speed Incorrect | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D100727.5 | SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxes | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D101004.2 | SGP/EBBR/E13 - Net Radiation Too Large | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1 |
D110721.1 | SGP/EBBR/E13 - Soil temperature #3 offscale | sgp15ebbrE13.b1, sgp30ebbrE13.b1 |
Subject: | SGP/EBBR/E13 - Wind direction failure |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.b1
|
Description: | The EBBR wind direction was stuck at 135 degrees; this reading indicates a failure of the
sensor electronics. |
Measurements: | sgp15ebbrE13.b1:
sgp5ebbrE13.b1: - Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
- wdir_vec_std
- Wind speed vector mean(wspd_vec_mean)
sgp30ebbrE13.b1: - wdir_vec_std
- Wind speed vector mean(wspd_vec_mean)
- Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
|
Subject: | SGP/EBBR/E13 - Incorrect Sensible and Latent Heat Fluxes |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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: - temp_air_bottom
- Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
- bowen_ratio
- temp_air_top
- Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
|
Subject: | SGP/EBBR/E13 - Net Radiation Too Large |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1, sgp5ebbrE13.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:
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)
|
Subject: | SGP/EBBR/E13 - Soil temperature #3 offscale |
DataStreams: | sgp15ebbrE13.b1, sgp30ebbrE13.b1
|
Description: | Soil Temp Sensor 3 data were missing or offscale due to a bad connection.
H and LE were not normally affected, as the EBBR program "kicked" out the incorrect
temperature measurements before calculating H and LE. |
Measurements: | sgp15ebbrE13.b1:
sgp30ebbrE13.b1: - Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
- bowen_ratio
- surface_soil_heat_flux_3
- soil_heat_capacity_3
- Soil temperature mean 3(soil_temp_3)
- Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
|