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Titel Physical disaggregation of numerical model rainfall
VerfasserIn N. I. Fox, Ch. G. Collier
Medientyp Artikel
Sprache Englisch
ISSN 1027-5606
Digitales Dokument URL
Erschienen In: Hydrology and Earth System Sciences ; 4, no. 3 ; Nr. 4, no. 3, S.419-424
Datensatznummer 250001749
Publikation (Nr.) Volltext-Dokument vorhandencopernicus.org/hess-4-419-2000.pdf
 
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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