Arid
DOI10.1016/j.agwat.2017.09.010
The effect of reference-condition-based temperature modification on the trend of reference evapotranspiration in arid and semi-arid regions
Khanmohammadi, Neda; Rezaie, Hossein; Montaseri, Majid; Behmanesh, Javad
通讯作者Rezaie, Hossein
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2017
卷号194页码:204-213
英文摘要

Reference evapotranspiration (ET0) has a significant role in agricultural water management. Commonly, FA056 Penman-Monteith as standard method is used to calculate ET0. To apply this method, meteorological data recorded at reference stations are required. The use of non-reference stations data in ET0 calculation can affect trend of this parameter. In the present study, the effect of reference-condition based temperature modification on ET0 trend was evaluated. For this purpose, the collected data from 27 non-reference meteorological stations during 1960-2014 were applied. The mentioned stations are located in arid or semi-arid regions of Iran. The trends of unchanged and modified values of ET0 in studied stations were calculated using the Mann-Kendall method. Trend results showed that unchanged values of ET0 had a positive trend, while the modified ones had a negative trend in more than 50% of stations at seasonal and annual scales. According to R-2 and RMSE results, there was no correlation between the trends of unchanged and modified values of ET0 and temperature modification based on the reference condition can change the trend values of ET0. Also, the results of T-statistic showed that the difference between two values of trend in arid regions was more than that of semi-arid ones. This difference in stations with arid climate was significant at 95% confidence level. (C) 2017 Elsevier B.V. All rights reserved.


英文关键词ET0 FA056 Penman-Monteith Iran Reference condition Trend analysis
类型Article
语种英语
国家Iran
收录类别SCI-E
WOS记录号WOS:000413380000019
WOS关键词YANGTZE-RIVER BASIN ; POTENTIAL EVAPOTRANSPIRATION ; PAN EVAPORATION ; LOESS PLATEAU ; SPATIAL-DISTRIBUTION ; HYDROLOGICAL SERIES ; CHINA ; CLIMATE ; IRAN ; ATTRIBUTION
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/197170
作者单位Urmia Univ, Dept Water Engn, Orumiyeh, Iran
推荐引用方式
GB/T 7714
Khanmohammadi, Neda,Rezaie, Hossein,Montaseri, Majid,et al. The effect of reference-condition-based temperature modification on the trend of reference evapotranspiration in arid and semi-arid regions[J],2017,194:204-213.
APA Khanmohammadi, Neda,Rezaie, Hossein,Montaseri, Majid,&Behmanesh, Javad.(2017).The effect of reference-condition-based temperature modification on the trend of reference evapotranspiration in arid and semi-arid regions.AGRICULTURAL WATER MANAGEMENT,194,204-213.
MLA Khanmohammadi, Neda,et al."The effect of reference-condition-based temperature modification on the trend of reference evapotranspiration in arid and semi-arid regions".AGRICULTURAL WATER MANAGEMENT 194(2017):204-213.
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