ecCodes definition
| Name: | Total Precipitation | Abbreviation: | tp | Unit: | kg m-2 | paramId: | 228228 |
TIGGE details
| Definition | The parameter is the sum of convective precipitation and large scale precipitation. |
| Validity | Accumulated from the beginning of the forecast |
| Comment |
WMO GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 0 | Meteorological products |
| Parameter Category | 1 | Moisture |
| Parameter Number | 52 | Total precipitation rate |
| Type of statistical processing | 1 | accumulated |
| Level | ||
|---|---|---|
| Type of first fixed surface | 1 | Ground or water surface |
| Scale factor of first fixed surface | all bits to 1 | Missing |
| Scaled value of first fixed surface | all bits to 1 | Missing |
| Type of second fixed surface | all bits to 1 | Missing |
| Scale factor of second fixed surface | all bits to 1 | Missing |
| Scaled value of second fixed surface | all bits to 1 | Missing |
3 Comments
John Locke
The unit of total precipitation in the ERA-Interim (Jan 1979 - present) database is meter. Here it is said to be kilogram per square meter. Is this intended? And if so, what is the reason?
Richard Mladek
The TIGGE is a newer archive in GRIB2 format where the intention is to use only WMO compliant (GRIB2) definitions. For total precip it is kg m-2
We have the same approach for all new public datasets (TIGGE-LAM, S2S, UERRA etc.). The ERA datasets are older and in GRIB1 with units used by IFS (or agreed at the beginning of the archiving).
Sorry for that inconvenience.
Jake Hsu
Where can I find description for other variables like "Large-scale precipitation"(lsp) or "Surface sensible heat flux"(sshf) ,which I can download from ERA-Interim (Jan 1979 - present) ?