Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5973 |
Global observed and modelled impacts of irrigation on surface temperature | |
Chen, Liang1,2; Dirmeyer, Paul A.1 | |
2019-04-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:5页码:2587-2600 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Agricultural irrigation has significant potential for altering local climate by reducing soil albedo, increasing evapotranspiration, and enabling greater leaf area. Numerous studies using regional or global climate models have demonstrated the cooling effects of irrigation on mean and extreme temperature, especially over regions where irrigation is extensive. However, these model-based results have not been well validated due to the limitations of observational data sets. In this study, multiple satellite-based products, including the Moderate Resolution Imaging Spectroradiometer (MODIS) and Soil Moisture Active Passive (SMAP) data sets, are used to isolate and quantify the local impacts of irrigation on surface climate over irrigated regions, which are derived from the Global Map of Irrigation Areas (GMIA). The relationships among soil moisture, albedo, evapotranspiration, and surface temperature are explored. Strong evaporative cooling by irrigation lowers daytime surface temperature over arid and semi-arid regions, such as California's Central Valley, the Great Plains, central Asia, and northwestern India. However, the cooling effects are less evident in areas of eastern China and the Lower Mississippi River Basin despite extensive irrigation over these regions. Results are also compared with irrigation experiments using the Community Earth System Model (CESM) to assess the model's ability to represent land-atmosphere interactions in regards to irrigation. CESM greatly underestimates the surface temperature response to irrigation. The comparison between the offline and coupled simulations suggests that the irrigation-induced cooling can be regulated by the interactions between land surface and atmosphere, and amplified signals are found over the hot spot regions. Meanwhile, model resolution can also influence the magnitude of the local cooling by irrigation. |
英文关键词 | CESM evaporative cooling irrigation land surface temperature |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467048900006 |
WOS关键词 | SOIL-MOISTURE ; CHLOROPHYLL FLUORESCENCE ; EMPIRICAL-EVIDENCE ; LAND MANAGEMENT ; COVER CHANGE ; FEEDBACKS ; WATER ; PRECIPITATION ; ATMOSPHERE ; CALIFORNIA |
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/182114 |
专题 | 气候变化 |
作者单位 | 1.George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA; 2.Univ Illinois, Prairie Res Inst, Illinois State Water Survey, Climate & Atmospher Sci Sect, M-C 674, Champaign, IL 61820 USA |
推荐引用方式 GB/T 7714 | Chen, Liang,Dirmeyer, Paul A.. Global observed and modelled impacts of irrigation on surface temperature[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(5):2587-2600. |
APA | Chen, Liang,&Dirmeyer, Paul A..(2019).Global observed and modelled impacts of irrigation on surface temperature.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(5),2587-2600. |
MLA | Chen, Liang,et al."Global observed and modelled impacts of irrigation on surface temperature".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.5(2019):2587-2600. |
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