Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD030213 |
Regional Impacts of Urban Irrigation on Surface Heat Fluxes and Rainfall in Central Arizona | |
Yang, Yan1,2; Smith, James2; Yang, Long3; Baeck, Mary Lynn2; Ni, Guangheng1 | |
2019-06-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:12页码:6393-6410 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Rapid urbanization over Phoenix has resulted in increased water consumption for maintenance of green spaces and heat stress mitigation. The hydrometeorological impact of urban irrigation is not well understood and is the principal objective of this study. Our results are based on high-resolution numerical experiments using the Weather Research and Forecasting model. A simple irrigation scheme is implemented into the Weather Research and Forecasting model to represent changes in soil moisture due to irrigation. A monthlong simulation using the Weather Research and Forecasting model with irrigation shows improved model performance in representing the regional water and energy cycle. Comparisons of model simulations with and without irrigation highlight the regional impacts of urban irrigation on surface heat fluxes and rainfall variability over Phoenix. There is a strong modulation of irrigation on surface energy partitioning over both irrigated and nonirrigated areas. Irrigation increases (decreases) surface latent (sensible) heat fluxes by enhanced evapotranspiration over irrigated areas, with opposing changes presented over nonirrigated areas. Irrigation contributes little to the domain-average rainfall accumulation, but can noticeably modify its spatial distribution, with increased rainfall over the downwind mountainous regions and decreased rainfall over the irrigated areas. Irrigation-induced rainfall anomalies can be tied to strengthened thermal gradients and induced changes in surface pressure fields, which lead to perturbations on large-scale flow and its interactions with complex terrain. Our results shed light on the hydrometeorological impacts of increasing anthropogenic water use driven by urbanization and highlight the importance of accurate representations of land surface processes in better characterizing land-atmosphere interactions in arid/semiarid regions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477800000030 |
WOS关键词 | SOIL-MOISTURE ; UNITED-STATES ; SUMMER PRECIPITATION ; PHOENIX ; CLIMATE ; WATER ; ENERGY ; ISLAND ; HYDROMETEOROLOGY ; LOCATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/184183 |
专题 | 气候变化 |
作者单位 | 1.Tsinghua Univ, Dept Hydraul Engn, Beijing, Peoples R China; 2.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA; 3.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Yan,Smith, James,Yang, Long,et al. Regional Impacts of Urban Irrigation on Surface Heat Fluxes and Rainfall in Central Arizona[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(12):6393-6410. |
APA | Yang, Yan,Smith, James,Yang, Long,Baeck, Mary Lynn,&Ni, Guangheng.(2019).Regional Impacts of Urban Irrigation on Surface Heat Fluxes and Rainfall in Central Arizona.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(12),6393-6410. |
MLA | Yang, Yan,et al."Regional Impacts of Urban Irrigation on Surface Heat Fluxes and Rainfall in Central Arizona".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.12(2019):6393-6410. |
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