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Challenge and opportunities of space-based precipitation radar for spatio-temporal hydrology analysis in tropical maritime influenced catchment: case study on the upper and remote forested tropical watershed of Peninsular Malaysia

Mahmud, M. R. and Numata, S. and Matsuyama, H. and Hosaka, T. and Hashim, M. (2013) Challenge and opportunities of space-based precipitation radar for spatio-temporal hydrology analysis in tropical maritime influenced catchment: case study on the upper and remote forested tropical watershed of Peninsular Malaysia. In: 8th International Symposium on Digital, 2013.

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Abstract

This paper highlights two critical issues regarding hilly watershed in Peninsular Malaysia; (1) current status of spatio-temporal condition of rain gauge based measurement, and (2) potential of space-based precipitation radar to study the rainfall dynamics. Two analyses were carried out represent each issue consecutively. First, the spatial distribution and efficiency of rain gauge in hilly watershed Peninsular Malaysia is evaluated with respect to the land use and elevation information using Geographical Information System (GIS) approach. Second, the spatial pattern of rainfall changes is analysed using the Tropical Rainfall Measuring Mission (TRMM) satellite information. The spatial analysis revealed that the rain gauge distribution had sparse coverage on hilly watershed and possessed inadequate efficiency for effective spatial based assessment. Significant monthly rainfall changes identified by TRMM satellite on the upper part of the watershed had occurred occasionally in 1999, 2000, 2001, 2006, and 2009 went undetected by conventional rain gauge. This study informed the potential and opportunities of space-based precipitation radar to fill the gaps of knowledge on spatio-temporal rainfall patterns for hydrology and related fields in tropical region.

Item Type:Conference or Workshop Item (Paper)
Subjects:G Geography. Anthropology. Recreation
Divisions:Chancellery
ID Code:39398
Deposited By: Liza Porijo
Deposited On:30 Jun 2014 16:04
Last Modified:10 Oct 2017 16:12

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