Applicability and Hydrologic Substitutability of TMPA Satellite Precipitation Product in the Feilaixia Catchment, China
1
School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China
2
State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China
3
Guangdong Engineering Technology Research Center of Safety and Greenization for Water Conservancy Project, Guangzhou 510640, China
*
Author to whom correspondence should be addressed.
Water 2020, 12(6), 1803; https://doi.org/10.3390/w12061803
Received: 18 May 2020
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Revised: 20 June 2020
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Accepted: 20 June 2020
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Published: 24 June 2020
(This article belongs to the Section Hydrology)
The assessment of various precipitation products’ performances in extreme climatic conditions has become a topic of interest. However, little attention has been paid to the hydrological substitutability of these products. The objective of this study is to explore the performance of the Tropical Rainfall Measuring Mission Multi-Satellite Precipitation Analysis (TMPA) product in the Feilaixia catchment, China. To assess its applicability in extreme consecutive climates, several statistical indices are adopted to evaluate the TMPA performance both qualitatively and quantitatively. The Cox–Stuart test is used to investigate extreme climate trends. The Soil and Water Assessment Tool (SWAT) model is used to test the TMPA hydrological substitutability via three scenarios of runoff simulation. The results demonstrate that the overall TMPA performance is acceptable, except at high-latitudes and locations where the terrain changes greatly. Moreover, the accuracy of the SWAT model is high both in the semi-substitution and full-substitution scenarios. Based on the results, the TMPA product is a useful substitute for the gauged precipitation in obtaining acceptable hydrologic process information in areas where gauged sites are sparse or non-existent. The TMPA product is satisfactory in predicting the runoff process. Overall, it must be used with caution, especially at high latitudes and altitudes.
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Keywords:
Cox–Stuart test; extreme consecutive climate; runoff simulation; SWAT; TRMM
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MDPI and ACS Style
Chen, X.; Huang, G. Applicability and Hydrologic Substitutability of TMPA Satellite Precipitation Product in the Feilaixia Catchment, China. Water 2020, 12, 1803. https://doi.org/10.3390/w12061803
AMA Style
Chen X, Huang G. Applicability and Hydrologic Substitutability of TMPA Satellite Precipitation Product in the Feilaixia Catchment, China. Water. 2020; 12(6):1803. https://doi.org/10.3390/w12061803
Chicago/Turabian StyleChen, Xiaoli, and Guoru Huang. 2020. "Applicability and Hydrologic Substitutability of TMPA Satellite Precipitation Product in the Feilaixia Catchment, China" Water 12, no. 6: 1803. https://doi.org/10.3390/w12061803
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