Numerical Simulation of the Irrigation Effects on Surface Fluxes and Local Climate in Typical Mountain-Oasis-Desert Systems in the Central Asia Arid Area

doi:10.1029/2019JD030507

	Numerical Simulation of the Irrigation Effects on Surface Fluxes and Local Climate in Typical Mountain-Oasis-Desert Systems in the Central Asia Arid Area
	Zhang, Miao 2; Luo, Geping 1,3; Cao, Xiaoshu 2; Hamdi, Rafiq 4; Li, Tao 2; Cai, Peng 1; Ye, Hui 5; He, Huili 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2019-12-03
页码	22
关键词	Flood and drip irrigations Irrigation effects Water-heat interactions Modified WRF-Noah
ISSN号	2169-897X
DOI	10.1029/2019JD030507
通讯作者	Luo, Geping(luogp@ms.xjb.ac.cn)
英文摘要	In this study, the Weather Research and Forecasting model was coupled with an improved Noah land surface model (WRF-Noah) where dynamic flood and drip irrigation processes were implemented firstly. We simulated the different irrigation effects on surface water-heat processes in a typical mountain-oasis-desert system in Central Asia for both wet and drought years, respectively, using the modified WRF-Noah. The modified WRF-Noah model can dynamically generate amounts of irrigation in agreement with actual values. The statistically significant decrease in the root mean square error and increase in the Pearson correlation coefficient for the 2-m temperature (T2), relative humidity (RH), latent heat flux (LE), and precipitation suggest that the modified WRF-Noah model was improved by implementing irrigation processes. During the irrigation season, flood and drip irrigation decreased the average sensible heat flux by -80.69 and -50.50 W/m(2) and T2 by 1.09 and 0.82 degrees C over the irrigated area and increased LE by 88.47 and 66.70 W/m(2) and RH by 6.23% and 4.65%, respectively. Throughout the domain, flood irrigation had equivalent or slightly weaker effects on near-surface temperature and humidity due to the smaller irrigated area. Both flood and drip irrigation increased precipitation throughout the domain, especially in the mountainous area, thereby accelerating the hydrological cycle in the mountain-oasis-desert system. The local oasis breeze circulation that plays a role in maintaining the oasis stability is still counteracted by the dominant background circulation even with irrigation processes. Thus, more effort should be exerted to maintain the future sustainability of the oasis.
资助项目	National Natural Science Foundation of China[41801095] ; National Natural Science Foundation of China[41671108] ; Fundamental Research Funds for the Central Universities[GK201903117] ; Chinese Academy of Science[131965KYSB20160004]
WOS关键词	MM5 MODELING SYSTEM ; SUMMER PRECIPITATION ; LAND-USE ; ATMOSPHERIC CIRCULATION ; HYDROLOGY MODEL ; NORTHERN SLOPE ; PART I ; WATER ; AGRICULTURE ; TEMPERATURE
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000500138500001
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Chinese Academy of Science
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/130400]
专题	中国科学院地理科学与资源研究所
通讯作者	Luo, Geping
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Xinjiang, Peoples R China 2.Shaanxi Normal Univ, Northwest Land & Resources Res Ctr, Xian, Shaanxi, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecol & Environm Cent Asia, Urumqi, Peoples R China 4.Royal Meteorol Inst, Brussels, Belgium 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Miao,Luo, Geping,Cao, Xiaoshu,et al. Numerical Simulation of the Irrigation Effects on Surface Fluxes and Local Climate in Typical Mountain-Oasis-Desert Systems in the Central Asia Arid Area[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019:22.
APA	Zhang, Miao.,Luo, Geping.,Cao, Xiaoshu.,Hamdi, Rafiq.,Li, Tao.,...&He, Huili.(2019).Numerical Simulation of the Irrigation Effects on Surface Fluxes and Local Climate in Typical Mountain-Oasis-Desert Systems in the Central Asia Arid Area.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,22.
MLA	Zhang, Miao,et al."Numerical Simulation of the Irrigation Effects on Surface Fluxes and Local Climate in Typical Mountain-Oasis-Desert Systems in the Central Asia Arid Area".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2019):22.