[1]XU Dong,ZOU Jin,LU Ying,et al.Evaluation on Applicability of TRMM Satellite Precipitation Product in the NuJiang River Basin[J].Research of Soil and Water Conservation,2019,26(01):240-244,251.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 01
Page number:
240-244,251
Column:
Public date:
2019-02-28
- Title:
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Evaluation on Applicability of TRMM Satellite Precipitation Product in the NuJiang River Basin
- Author(s):
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XU Dong1, ZOU Jin1, LU Ying2, PAN Feng1
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1. College of Electric Power Engineering, Kunming University of Science and technology, Kunming 650500, China;
2. Asian International Rivers Center, Yunnan University, Kunming 650093, China
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- Keywords:
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precipitation; TRMM 3B43 Version7; accuracy evaluation; Nujiang River Basin
- CLC:
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TP79
- DOI:
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- Abstract:
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The applicability of TRMM 3B43 V7 satellite precipitation data in Nujiang River Basin was analyzed by using scatter slope method and correlation coefficient method based on the measured precipitation data from 12 meteorological stations in Nujiang River Basin at different space-time scales. The results showed that the correlation coefficient R value of TRMM precipitation data and site measured precipitation data was 0.81,and the correlations between them were significant; on the seasonal scale,the correlation (R=0.74) of summer precipitation was higher than the other 3 seasons,the relativity of winter precipitation was the poorest (R=0.63); on the site scale,upstream and downstream sites of the correlation coefficient was greater than 0.9, relatively large sites mainly distributed in the middle of the river basin. On the whole, the consistency between the TRMM 3B43 V7 monthly precipitation data and the measured data of the Nujiang River basin site showed that the correlation between the upper and lower topography was relatively open and flat, while the terrain of the middle reaches was diverse, and the canyon area with greater slopewas less relevant.