Evaluation of five satellite products for estimation of rainfall over Uganda

Asadullah, Anita, McIntyre, Neil and Kigobe, Max (2008) Evaluation of five satellite products for estimation of rainfall over Uganda. Hydrological Sciences Journal, 53 6: 1137-1150. doi:10.1623/hysj.53.6.1137


Author Asadullah, Anita
McIntyre, Neil
Kigobe, Max
Title Evaluation of five satellite products for estimation of rainfall over Uganda
Journal name Hydrological Sciences Journal   Check publisher's open access policy
ISSN 0262-6667
Publication date 2008-12
Year available 2008
Sub-type Article (original research)
DOI 10.1623/hysj.53.6.1137
Volume 53
Issue 6
Start page 1137
End page 1150
Total pages 14
Place of publication Oxfordshire, United Kingdom
Publisher Taylor and Francis
Collection year 2009
Language eng
Formatted abstract
Five satellite-based rainfall estimation algorithms (TRMM 3B42, CMORPH, TAMSAT, RFE 2.0 and PERSIANN) are assessed against historical monthly rainfall statistics from raingauges within four regions of Uganda. Results are discussed in terms of the accuracy of the products, the effect of climate variability, and differences between products. Products are able to reasonably reflect seasonal patterns in rainfall, and also the spatial patterns in rainfall between regions. Patterns in the occurrence of rainfall are better reflected than patterns in rainfall amounts. There is significant scope for improving the estimation of amounts by calibration to the raingauge data. TRMM 3B42, CMORPH and TAMSAT show most promise in this application followed by RFE 2.0 and the PERSIANN system. However, the relative performance of the products depends on what aspects of the rainfall regime are being considered. Differences between the products are large and the use of more than one product for any application is recommended.
Keyword Rainfall estimation
Satellites
Uganda
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Water in the Minerals Industry
 
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