Assessment of TRMM satellite precipitation data and its impacts on the water balance of the Heihe River basin

Wei Qu; Jingxuan Lu; Zhiguo Pang

doi:10.1117/12.2019868

19 March 2013 Assessment of TRMM satellite precipitation data and its impacts on the water balance of the Heihe River basin

Wei Qu, Jingxuan Lu, Zhiguo Pang

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Proceedings Volume 8762, PIAGENG 2013: Intelligent Information, Control, and Communication Technology for Agricultural Engineering; 87620R (2013) https://doi.org/10.1117/12.2019868
Event: Third International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2013), 2013, Sanya, China

Abstract

With the objective of understanding the potential and limitations of satellite precipitation products for hydrological studies, this article compares TRMM (Tropical Rainfall Measurement Mission) precipitation product with observed precipitation data and analyzes its impacts on the water balance of the Upper Heihe River basin in Northwest China. TRMM 3b42 daily precipitation data were used to run the SWAT (Soil and Water Assessment Tools) model for the period 1998~2000 after compared to gauged precipitations. Three stations were selected as the reference precipitation datasets. The results show that basin wide annual average precipitation relative error is only 8%, and TRMM monthly data performed relatively well with the correlation coefficients all above 0.85. Model results reveal that TRMM can reproduce the water cycle reasonably well at the basin scale and monthly time step.

Citation Download Citation

Wei Qu, Jingxuan Lu, and Zhiguo Pang "Assessment of TRMM satellite precipitation data and its impacts on the water balance of the Heihe River basin", Proc. SPIE 8762, PIAGENG 2013: Intelligent Information, Control, and Communication Technology for Agricultural Engineering, 87620R (19 March 2013); https://doi.org/10.1117/12.2019868

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KEYWORDS

Data modeling

Satellites

Atmospheric modeling

Error analysis

Analytical research

Calibration

Computer simulations

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