Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aab375 |
Implications of a decrease in the precipitation area for the past and the future | |
Benestad, Rasmus E. | |
2018-04-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway |
英文摘要 | The total area with 24 hrs precipitation has shrunk by 7% between 50 degrees S-50 degrees N over the period 1998-2016, according to the satellite-based Tropical Rain Measurement Mission data. A decrease in the daily precipitation area is an indication of profound changes in the hydrological cycle, where the global rate of precipitation is balanced by the global rate of evaporation. This decrease was accompanied by increases in total precipitation, evaporation, and wet-day mean precipitation. If these trends are real, then they suggest increased drought frequencies and more intense rainfall. Satellite records, however, may be inhomogeneous because they are synthesised from a number of individual missions with improved technology over time. A linear dependency was also found between the global mean temperature and the 50 degrees S-50 degrees N daily precipitation area with a slope value of -17 x 10(6) km(2)/degrees C. This dependency was used with climate model simulations to make future projections which suggested a continued decrease that will strengthen in the future. The precipitation area evolves differently when the precipitation is accumulated over short and long time scales, however, and there has been a slight increase in the monthly precipitation area while the daily precipitation area decreased. An increase on monthly scale may indicate more pronounced variations in the rainfall patterns due to migrating rain-producing phenomena. |
英文关键词 | precipitation area climate change hydrological cycle rainfall intensity rain patterns |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429233900001 |
WOS关键词 | CLIMATE-CHANGE ; CYCLE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/26123 |
专题 | 气候变化 |
作者单位 | Norwegian Meteorol Inst, N-0313 Oslo, Norway |
推荐引用方式 GB/T 7714 | Benestad, Rasmus E.. Implications of a decrease in the precipitation area for the past and the future[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(4). |
APA | Benestad, Rasmus E..(2018).Implications of a decrease in the precipitation area for the past and the future.ENVIRONMENTAL RESEARCH LETTERS,13(4). |
MLA | Benestad, Rasmus E.."Implications of a decrease in the precipitation area for the past and the future".ENVIRONMENTAL RESEARCH LETTERS 13.4(2018). |
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