Multiregional Satellite Precipitation Products Evaluation over Complex Terrain
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Published version
Author(s)
Type
Journal Article
Abstract
An extensive evaluation of nine global-scale high-resolution satellite-based rainfall (SBR) products is performed using a minimum of 6 years (within the period of 2000-13) of reference rainfall data derived from rain gauge networks in nine mountainous regions across the globe. The SBR products are compared to a recently released global reanalysis dataset from the European Centre for Medium-Range Weather Forecasts (ECMWF). The study areas include the eastern Italian Alps, the Swiss Alps, the western Black Sea of Turkey, the French Cévennes, the Peruvian Andes, the Colombian Andes, the Himalayas over Nepal, the Blue Nile in East Africa, Taiwan, and the U.S. Rocky Mountains. Evaluation is performed at annual, monthly, and daily time scales and 0.25° spatial resolution. The SBR datasets are based on the following retrieval algorithms: Tropical Rainfall Measuring Mission Multisatellite Precipitation Analysis (TMPA), the NOAA/Climate Prediction Center morphing technique (CMORPH), Precipitation Estimation from Remotely Sensed Information Using Artificial Neural Networks (PERSIANN), and Global Satellite Mapping of Precipitation (GSMaP). SBR products are categorized into those that include gauge adjustment versus unadjusted. Results show that performance of SBR is highly dependent on the rainfall variability. Many SBR products usually underestimate wet season and overestimate dry season precipitation. The performance of gauge adjustment to the SBR products varies by region and depends greatly on the representativeness of the rain gauge network.
Date Issued
2016-06-17
Date Acceptance
2016-06-01
Citation
Journal of Hydrometeorology, 2016, 17 (6), pp.1817-1836
ISSN
1525-755X
Publisher
American Meteorological Society
Start Page
1817
End Page
1836
Journal / Book Title
Journal of Hydrometeorology
Volume
17
Issue
6
Copyright Statement
© 2016 American Meteorological Society
Sponsor
British Council (UK)
Grant Number
211956441
Subjects
Meteorology & Atmospheric Sciences
0401 Atmospheric Sciences
Publication Status
Published