Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/08/2004 | 1830 | 03/01/2005 | 1630 | Incorrect |
Subject: | SGP/EBBR/E15 - Soil Heat Flows Undermeasured, and Latent and Sensible Heat Fluxes |
DataStreams: | sgp30ebbrE15.b1 |
Description: | Use of the wrong soil type soil moisture coefficients caused soil moisture to be greatly undermeasured (a typical wrong value was 4% instead of the correct 17%), soil heat flows to be undermeasured, and sensible and latent heat fluxes to be overestimated. Soil heat flow plate outputs were undermeasured by up to 10%, change of energy storage was undermeasured by up to 80% and total soil heat flow was undermeasured by up to 50% as a result. This would result in approximately a 5% overestimation of both sensible and latent heat fluxes. |
Suggestions: | The percentage overestimation (in the absolute sense) of sensible and latent heat fluxes varies with soil moisture, but decreasing the fluxes (in an absolute sense; in other words make negative fluxes larger and positive fluxes smaller) by 5% would be appropriate for most soil moisture conditions. |
Measurements: | sgp30ebbrE15.b1: more
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