Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027706 |
Recent Acceleration of the Terrestrial Hydrologic Cycle in the US Midwest | |
Yeh, Pat J. -F.1; Wu, Chuanhao2 | |
2018-03-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:6页码:2993-3008 |
文章类型 | Article |
语种 | 英语 |
国家 | Singapore; Peoples R China |
英文摘要 | Most hydroclimatic trend studies considered only a subset of water budget variables; hence, the trend consistency and a holistic assessment of hydrologic changes across the entire water cycle cannot be evaluated. Here we use a unique 31year (1983-2013) observed data set in Illinois (a representative region of the U.S. Midwest), including temperature (T), precipitation (P), evaporation (E), streamflow (R), soil moisture, and groundwater level (GWL), to estimate the trends and their sensitivity to different data periods and lengths. Both the Mann-Kendall trend test and the least squares linear method identify trends in close agreement. Despite no clear trends during 1983-2013, increasing trends are found in P (8.73-9.05mm/year), E (6.87-7.47mm/year), and R (1.57-3.54mm/year) during 1992-2013, concurrently with a pronounced warming trend of 0.029-0.037 degrees C/year. However, terrestrial water storageis decreased by -2.0mm/year (mainly due to declining GWL), suggesting that the increased R is caused by increased surface runoff rather than baseflow. Monthly analyses identify warming trends for all months except winter. In summer, P (E) exhibits an increasing (decreasing) trend, leading to increasing R, soil moisture, GWL, and terrestrial water storage. Most trends estimated for different subperiods are found to be sensitive to data lengths and periods. Overall, this study provides an internally consistent observed evidence on the intensification of the hydrologic cycle in response to recent climate warming in U.S. Midwest, in agreement with and well supported by several recent studies consistently reporting the increased P, R and E over the Midwest and Mississippi River basin. |
英文关键词 | intensification hydrologic cycle trend Midwest |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430108900003 |
WOS关键词 | USE CHANGE IMPACTS ; MANN-KENDALL TEST ; STREAMFLOW TRENDS ; MISSISSIPPI RIVER ; CLIMATE-CHANGE ; WATER AVAILABILITY ; SOIL-MOISTURE ; UNITED-STATES ; DETECT TREND ; GREAT-LAKES |
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/33943 |
专题 | 气候变化 |
作者单位 | 1.Natl Univ Singapore, Dept Civil & Environm Engn, Singapore, Singapore; 2.Jinan Univ, Inst Groundwater & Earth Sci, Guangzhou, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Yeh, Pat J. -F.,Wu, Chuanhao. Recent Acceleration of the Terrestrial Hydrologic Cycle in the US Midwest[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(6):2993-3008. |
APA | Yeh, Pat J. -F.,&Wu, Chuanhao.(2018).Recent Acceleration of the Terrestrial Hydrologic Cycle in the US Midwest.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(6),2993-3008. |
MLA | Yeh, Pat J. -F.,et al."Recent Acceleration of the Terrestrial Hydrologic Cycle in the US Midwest".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.6(2018):2993-3008. |
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