DQR ID | Subject | Data Streams Affected |
---|---|---|
D070402.1 | SGP/ECOR/E21 - Intermittent incorrect flux measurements | sgp30ecorE21.b1 |
D070619.1 | SGP/ECOR/E5 - Flux Data Incorrect | sgp30ecorE5.b1 |
D080428.1 | SGP/ECOR/E24 - Half Hours of Data Missing | sgp30ecorE24.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2007 | 0800 | 08/29/2007 | 1730 |
Subject: | SGP/ECOR/E21 - Intermittent incorrect flux measurements |
DataStreams: | sgp30ecorE21.b1 |
Description: | At various times during the period, the LI-7500 CO2/H2O serial and analog signals from the LI-7500 were missing, but usually not at the same time. When the CO2/H2O serial datastream was missing, the Pressure and Temperature were missing; this did not, in itself, result in incorrect fluxes, as default values for pressure and temperature are automatically used. Fluxes were incorrect when the CO2/H2O analog datastream was missing; these times are identified by the qc checks. |
Measurements: | sgp30ecorE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/16/2007 | 0300 | 12/12/2007 | 2030 |
Subject: | SGP/ECOR/E5 - Flux Data Incorrect |
DataStreams: | sgp30ecorE5.b1 |
Description: | CO2 flux (lv_e) and latent heat flux (fc) were incorrect because the sonic anemometer was not working. |
Measurements: | sgp30ecorE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/27/2006 | 0530 | 11/08/2007 | 1600 |
Subject: | SGP/ECOR/E24 - Half Hours of Data Missing |
DataStreams: | sgp30ecorE24.b1 |
Description: | Individual half hours of data were missing infrequently because of a UPS problem. The extent of missing data is minimal, with only a few to several half hours missing most months. Data quality of the surrounding data times was not affected. |
Measurements: | sgp30ecorE24.b1:
|