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Modeled effects of irrigation on surface climate in the Heihe River Basin, Northwest China
Zhang, Xuezhen1,2; Xiong, Zhe3; Tang, Qiuhong2,4
2017-08-16
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
Volume122Issue:15Pages:7881-7895
Corresponding AuthorZhang, Xuezhen(xzzhang@igsnrr.ac.cn)
AbstractIn Northwest China, water originates from the mountain area and is largely used for irrigation agriculture in the middle reaches. This study investigates the local and remote impact of irrigation on regional climate in the Heihe River Basin, the second largest inland river basin in Northwest China. An irrigation scheme was developed and incorporated into the Weather Research and Forecasting (WRF) model with the Noah-MP land surface scheme (WRF/Noah-MP). The effects of irrigation is assessed by comparing the model simulations with and without consideration of irrigation (hereafter, IRRG and NATU simulations, respectively) for five growth seasons (May to September) from 2009 to 2013. As consequences of irrigation, daily mean temperature decreased by similar to 1.7 degrees C and humidity increased by similar to 2.3gkg(-1) (corresponding to similar to 38.5%) over irrigated area. The temperature and humidity of IRRG simulation matched well with the observations, whereas NATU simulation overestimated temperature and underestimated humidity over irrigated area. The effects on temperature and humidity are generally small outside the irrigated area. The cooling and wetting effects have opposing impacts on convective precipitation, resulting in a negligible change in localized precipitation over irrigated area. However, irrigation may induce water vapor convergence and enhance precipitation remotely in the southeastern portion of the Heihe River Basin.
Keywordirrigation WRF Noah-MP model Heihe River Basin (HRB) land-atmosphere coupling
DOI10.1002/2017JD026732
WOS KeywordIMPACTS ; PRECIPITATION ; COVER ; MOISTURE ; 1980S
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[91325302] ; National Natural Science Foundation of China[41471171] ; National Natural Science Foundation of China[41425002] ; Youth Innovation Promotion Association CAS[2015038] ; Kezhen Outstanding Young Scholars from IGSNRR[2015RC101] ; National Youth Top-notch Talent Support Program in China
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Kezhen Outstanding Young Scholars from IGSNRR ; National Youth Top-notch Talent Support Program in China
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000408349500012
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61751
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Xuezhen
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm East Asia, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xuezhen,Xiong, Zhe,Tang, Qiuhong. Modeled effects of irrigation on surface climate in the Heihe River Basin, Northwest China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(15):7881-7895.
APA Zhang, Xuezhen,Xiong, Zhe,&Tang, Qiuhong.(2017).Modeled effects of irrigation on surface climate in the Heihe River Basin, Northwest China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(15),7881-7895.
MLA Zhang, Xuezhen,et al."Modeled effects of irrigation on surface climate in the Heihe River Basin, Northwest China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.15(2017):7881-7895.
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