Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China

Abstract The accuracy of Tropical Rainfall Measuring Mission (TRMM) multi-satellite precipitation analysis (TMPA) daily accumulated precipitation products (3B42RTV7 and 3B42V7) was evaluated for a small basin (the Nanliu river basin). A direct comparison was performed against gauge observations from...

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Autores principales:	Yinjun Zhao, Qiongying Xie, Yuan Lu, Baoqing Hu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8b554109b1f845bdb5a5e38d62b92cec
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spelling	oai:doaj.org-article:8b554109b1f845bdb5a5e38d62b92cec2021-12-02T15:06:01ZHydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China10.1038/s41598-017-02704-12045-2322https://doaj.org/article/8b554109b1f845bdb5a5e38d62b92cec2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02704-1https://doaj.org/toc/2045-2322Abstract The accuracy of Tropical Rainfall Measuring Mission (TRMM) multi-satellite precipitation analysis (TMPA) daily accumulated precipitation products (3B42RTV7 and 3B42V7) was evaluated for a small basin (the Nanliu river basin). A direct comparison was performed against gauge observations from a period of 9 years (2000–2009) at temporal and spatial scales. The results show that the temporal-spatial precipitation characteristics of the Nanliu river basin are highly consistent with 3B42V7 relative to 3B42RTV7, with higher correlation coefficient (CC) approximately 0.9 at all temporal scales except for the daily scale and a lower relative bias percentage. 3B42V7 slightly overestimates precipitation at all temporal scales except the yearly scale; it slightly underestimates the precipitation at the daily spatial scale. The results also reveal that the precision of TMPA products increases with longer time-aggregated data, and the detection capability of daily TMPA precipitation products are enhanced by augmentation with daily precipitation rates. In addition, daily TMPA products were input into the Xin’anjiang hydrologic model; the results show that 3B42V7-based simulated outputs were well in line with actual stream flow observations, with a high CC (0.90) and Nash-Sutcliffe efficiency coefficient (NSE, 0.79), and the results adequately captured the pattern of the observed flow curve.Yinjun ZhaoQiongying XieYuan LuBaoqing HuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yinjun Zhao Qiongying Xie Yuan Lu Baoqing Hu Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China
description	Abstract The accuracy of Tropical Rainfall Measuring Mission (TRMM) multi-satellite precipitation analysis (TMPA) daily accumulated precipitation products (3B42RTV7 and 3B42V7) was evaluated for a small basin (the Nanliu river basin). A direct comparison was performed against gauge observations from a period of 9 years (2000–2009) at temporal and spatial scales. The results show that the temporal-spatial precipitation characteristics of the Nanliu river basin are highly consistent with 3B42V7 relative to 3B42RTV7, with higher correlation coefficient (CC) approximately 0.9 at all temporal scales except for the daily scale and a lower relative bias percentage. 3B42V7 slightly overestimates precipitation at all temporal scales except the yearly scale; it slightly underestimates the precipitation at the daily spatial scale. The results also reveal that the precision of TMPA products increases with longer time-aggregated data, and the detection capability of daily TMPA precipitation products are enhanced by augmentation with daily precipitation rates. In addition, daily TMPA products were input into the Xin’anjiang hydrologic model; the results show that 3B42V7-based simulated outputs were well in line with actual stream flow observations, with a high CC (0.90) and Nash-Sutcliffe efficiency coefficient (NSE, 0.79), and the results adequately captured the pattern of the observed flow curve.
format	article
author	Yinjun Zhao Qiongying Xie Yuan Lu Baoqing Hu
author_facet	Yinjun Zhao Qiongying Xie Yuan Lu Baoqing Hu
author_sort	Yinjun Zhao
title	Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China
title_short	Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China
title_full	Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China
title_fullStr	Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China
title_full_unstemmed	Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China
title_sort	hydrologic evaluation of trmm multisatellite precipitation analysis for nanliu river basin in humid southwestern china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/8b554109b1f845bdb5a5e38d62b92cec
work_keys_str_mv	AT yinjunzhao hydrologicevaluationoftrmmmultisatelliteprecipitationanalysisfornanliuriverbasininhumidsouthwesternchina AT qiongyingxie hydrologicevaluationoftrmmmultisatelliteprecipitationanalysisfornanliuriverbasininhumidsouthwesternchina AT yuanlu hydrologicevaluationoftrmmmultisatelliteprecipitationanalysisfornanliuriverbasininhumidsouthwesternchina AT baoqinghu hydrologicevaluationoftrmmmultisatelliteprecipitationanalysisfornanliuriverbasininhumidsouthwesternchina
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Hydrologic Evaluation of TRMM Multisatellite Precipitation Analysis for Nanliu River Basin in Humid Southwestern China

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