Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin

This paper focuses on determining the spatial and temporal characteristics of the sensitivity coefficients (SCs) between potential evapotranspiration (ET0) and key climatic factors across the Shiyang River Basin (SYRB) from 1981 to 2015. Penman–Monteith equation and a sensitivity analysis were used...

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Autores principales:	Xuelei Zhang, Weihua Xiao, Yicheng Wang, Yan Wang, Miaoye Kang, Hejia Wang, Ya Huang
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	et0 (evapotranspiration) p-m (penman–monteith) equation sensitivity analysis shiyang river basin Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/7d662812b65a423992a6fbbffd582545
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spelling	oai:doaj.org-article:7d662812b65a423992a6fbbffd5825452021-11-09T23:59:06ZSensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin2040-22442408-935410.2166/wcc.2020.225https://doaj.org/article/7d662812b65a423992a6fbbffd5825452021-11-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/7/2875https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354This paper focuses on determining the spatial and temporal characteristics of the sensitivity coefficients (SCs) between potential evapotranspiration (ET0) and key climatic factors across the Shiyang River Basin (SYRB) from 1981 to 2015. Penman–Monteith equation and a sensitivity analysis were used to calculate ET0 and the SCs for key climatic factors. Sen's slope was used to analyze the observed series. According to the results, the sensitivity significances were in the order of relative humidity (RH) > net solar radiation (NSR) > wind speed (WS) > maximum air temperature (Tmax) > minimum air temperature (Tmin). The SCs for the RH and NSR were larger in the upper mountainous region, while the other three coefficients were larger in the middle and lower reaches. All five climatic factors for the ET0 SCs showed increasing trends in the mountainous region, and the Tmax, WS and RH SCs increased in the middle and lower reaches. Over the past 35 years, the change in ET0 was dominated by the air temperature (T), RH and NSR, and the increase in ET0 during the studied period was mainly due to the increases in T and NSR. HIGHLIGHTS Determined the spatial and temporal characteristics of the sensitivity coefficients between ET0 and key climatic factors across the SYRB.; Explored the causes of ET0 changes and their responses to climate change in the SYRB.; Quantified the contribution rate of each climatic element to ET0 in the SYRB from 1981 to 2015.;Xuelei ZhangWeihua XiaoYicheng WangYan WangMiaoye KangHejia WangYa HuangIWA Publishingarticleet0 (evapotranspiration)p-m (penman–monteith) equationsensitivity analysisshiyang river basinEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 7, Pp 2875-2884 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	et0 (evapotranspiration) p-m (penman–monteith) equation sensitivity analysis shiyang river basin Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	et0 (evapotranspiration) p-m (penman–monteith) equation sensitivity analysis shiyang river basin Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Xuelei Zhang Weihua Xiao Yicheng Wang Yan Wang Miaoye Kang Hejia Wang Ya Huang Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin
description	This paper focuses on determining the spatial and temporal characteristics of the sensitivity coefficients (SCs) between potential evapotranspiration (ET0) and key climatic factors across the Shiyang River Basin (SYRB) from 1981 to 2015. Penman–Monteith equation and a sensitivity analysis were used to calculate ET0 and the SCs for key climatic factors. Sen's slope was used to analyze the observed series. According to the results, the sensitivity significances were in the order of relative humidity (RH) > net solar radiation (NSR) > wind speed (WS) > maximum air temperature (Tmax) > minimum air temperature (Tmin). The SCs for the RH and NSR were larger in the upper mountainous region, while the other three coefficients were larger in the middle and lower reaches. All five climatic factors for the ET0 SCs showed increasing trends in the mountainous region, and the Tmax, WS and RH SCs increased in the middle and lower reaches. Over the past 35 years, the change in ET0 was dominated by the air temperature (T), RH and NSR, and the increase in ET0 during the studied period was mainly due to the increases in T and NSR. HIGHLIGHTS Determined the spatial and temporal characteristics of the sensitivity coefficients between ET0 and key climatic factors across the SYRB.; Explored the causes of ET0 changes and their responses to climate change in the SYRB.; Quantified the contribution rate of each climatic element to ET0 in the SYRB from 1981 to 2015.;
format	article
author	Xuelei Zhang Weihua Xiao Yicheng Wang Yan Wang Miaoye Kang Hejia Wang Ya Huang
author_facet	Xuelei Zhang Weihua Xiao Yicheng Wang Yan Wang Miaoye Kang Hejia Wang Ya Huang
author_sort	Xuelei Zhang
title	Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin
title_short	Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin
title_full	Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin
title_fullStr	Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin
title_full_unstemmed	Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin
title_sort	sensitivity analysis of potential evapotranspiration to key climatic factors in the shiyang river basin
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/7d662812b65a423992a6fbbffd582545
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_version_	1718440760543543296

Sensitivity analysis of potential evapotranspiration to key climatic factors in the Shiyang River Basin

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