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| Titel |
Physical disaggregation of numerical model rainfall |
| VerfasserIn |
N. I. Fox, Ch. G. Collier |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 4, no. 3 ; Nr. 4, no. 3, S.419-424 |
| Datensatznummer |
250001749
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| Publikation (Nr.) |
 copernicus.org/hess-4-419-2000.pdf |
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| Zusammenfassung |
| A
methodology is presented for the disaggregation of numerical model fields of
convective rainfall using a physically based procedure. The scheme uses surface
sensible heat flux values derived from high-resolution multichannel satellite
radiometer observations. The sensible heat flux values initialise a simple
convective model to calculate the convective disaggregation parameter (CDP),
which is theoretically proportional to the convective rainfall rate. The CDP
diagnostic parameter can be derived as a one-time field if the surface
characteristics are invariant, as a seasonal value may be, or it may be
evaluated on a case by case basis. Once found, the CDP can be used to
disaggregate numerical weather prediction (NWP) convective rainfall fields for
as far ahead as such fields are produced. |
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