GRIB-API definition
| NameSurface | clear-sky thermal radiation downwardsAccumulated downward long-wave radiation flux, clear sky | Abbreviationsctrd | adlwrf_cs | Unit | J m-2 | paramId: | TBD260428 |
UERRA details
| Definition | Downward clear-sky thermal (long-wave) radiation at the surface (assuming transparent clouds). |
| Validity | accumulated (from the beginning of the forecast) |
| Comment | The flux sign convention is positive downwards. |
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