Wetting trend in Northwest China reversed by warmer temperature and drier air
文献类型：期刊论文
| 作者 | Deng, Haoxin2,3; Tang, Qiuhong2,3; Yun, Xiaobo4; Tang, Yin2; Liu, Xingcai2; Xu, Ximeng2; Sun, Siao3,5; Zhao, Gang1; Zhang, Yongyong2; Zhang, Yongqiang2 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 613页码:9 |
| 关键词 | Northwest China Driving factors Wetting trend Land dryness Potential evapotranspiration |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2022.128435 |
| 通讯作者 | Tang, Qiuhong(tanqh@igsnrr.ac.cn) |
| 英文摘要 | Northwest China has experienced a warming-wetting climate featured by increasing temperature and precipitation during the past six decades. Recent studies suggested that the climate may have shifted from wetting to drying after the 1990s if changes in energy supply were considered. However, how the change in energy supply affects the dryness remains unclear. In this study, we quantified the dryness in Northwest China based on the Standardized Precipitation Evapotranspiration Index (SPEI) which considers the impact of potential evapotranspiration estimated by the Penman-Monteith equation on dryness during 1961-2018. Then, the contributions of changes in meteorological variables (precipitation, temperature, relative humidity, wind speed, and net radiation) to the dryness changes were estimated using a detrending technique. The results indicated that Northwest China experienced a wetting period (1961-1989) and then a drying period (1989-2018). During 1961-1989, increased precipitation and slowed wind were the main drivers of the wetting trend. During 1989-2018, although the increased precipitation and decline in solar radiation favored a wetting condition, warmer temperature, drier air (decrease in relative humidity), together with rebounded wind speed offset the wetting trend and resulted in significantly increasing dryness in Northwest China. The dryness would further increase if current climate trends continue in the future, which may have important implications for water management in Northwest China. |
| WOS关键词 | SURFACE WIND-SPEED ; WET GETS WETTER ; CLIMATE-CHANGE ; SOIL-MOISTURE ; REFERENCE EVAPOTRANSPIRATION ; GLOBAL ASSESSMENT ; DROUGHT ; PRECIPITATION ; XINJIANG ; DATASET |
| 资助项目 | Third Xinjiang Scientific Expedition and Research[2021xjkk0805] ; National Natural Science Foundation of China[41790424] ; National Natural Science Foundation of China[41730645] ; CAS Interdisciplinary Innovation Team[JCTD-2019-04] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000888902300002 |
| 出版者 | ELSEVIER |
| 资助机构 | Third Xinjiang Scientific Expedition and Research ; National Natural Science Foundation of China ; CAS Interdisciplinary Innovation Team |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/187834]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tang, Qiuhong |
| 作者单位 | 1.Carnegie Inst Sci, Dept Global Ecol, Stanford, CA 94305 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.China Meteorol Adm, Natl Meteorol Ctr, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Haoxin,Tang, Qiuhong,Yun, Xiaobo,et al. Wetting trend in Northwest China reversed by warmer temperature and drier air[J]. JOURNAL OF HYDROLOGY,2022,613:9. |
| APA | Deng, Haoxin.,Tang, Qiuhong.,Yun, Xiaobo.,Tang, Yin.,Liu, Xingcai.,...&Zhang, Yongqiang.(2022).Wetting trend in Northwest China reversed by warmer temperature and drier air.JOURNAL OF HYDROLOGY,613,9. |
| MLA | Deng, Haoxin,et al."Wetting trend in Northwest China reversed by warmer temperature and drier air".JOURNAL OF HYDROLOGY 613(2022):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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