Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0519.1 |
Oceanic Origins of Historical Southwest Asia Precipitation During the Boreal Cold Season | |
Hoell, Andrew1; Barlow, Mathew2; Cannon, Forest3,5; Xu, Taiyi1,4 | |
2017-04-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | While a strong influence on cold season southwest Asia precipitation by Pacific sea surface temperatures (SSTs) has been previously established, the scarcity of southwest Asia precipitation observations prior to 1960 renders the region's long-term precipitation history largely unknown. Here a large ensemble of atmospheric model simulations forced by observed time-varying boundary conditions for 1901-2012 is used to examine the long-term sensitivity of November-April southwest Asia precipitation to Pacific SSTs. It is first established that the models are able to reproduce the key features of regional variability during the best-observed 1960-2005 period and then the pre-1960 variability is investigated using the model simulations. During the 1960-2005 period, both the mean precipitation and the two leading modes of precipitation variability during November-April are reasonably simulated by the atmospheric models, which include the previously identified relationships with El Nino-Southern Oscillation (ENSO) and the multidecadal warming of Indo-Pacific SSTs. Over the full 1901-2012 period, there are notable variations in precipitation and in the strength of the SST influence. A long-term drying of the region is associated with the Indo-Pacific warming, with a nearly 10% reduction in western most southwest Asia precipitation during 1938-2012. The influence of ENSO on southwest Asia precipitation varied in strength throughout the period: strong prior to the 1950s, weak between 1950 and 1980, and strongest after the 1980s. These variations were not antisymmetric between ENSO phases. El Nino was persistently related with anomalously wet conditions throughout 1901-2012, whereas La Nina was not closely linked to precipitation anomalies prior to the 1970s but has been associated with exceptionally dry conditions thereafter. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399679900010 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; SURFACE TEMPERATURE ; LA-NINA ; CLIMATE ; TELECONNECTIONS ; VARIABILITY ; WINTER ; STREAMFLOW ; PATTERNS ; AEROSOLS |
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/19383 |
专题 | 气候变化 |
作者单位 | 1.NOAA, Phys Sci Div, Earth Syst Res Lab, Boulder, CO 80305 USA; 2.Univ Massachusetts, Dept Environm Earth & Atmospher Sci, Lowell, MA USA; 3.Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA; 4.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO USA; 5.Univ Calif San Diego, Scripps Inst Oceanog, Ctr Western Weather & Water Extremes, San Diego, CA 92103 USA |
推荐引用方式 GB/T 7714 | Hoell, Andrew,Barlow, Mathew,Cannon, Forest,et al. Oceanic Origins of Historical Southwest Asia Precipitation During the Boreal Cold Season[J]. JOURNAL OF CLIMATE,2017,30(8). |
APA | Hoell, Andrew,Barlow, Mathew,Cannon, Forest,&Xu, Taiyi.(2017).Oceanic Origins of Historical Southwest Asia Precipitation During the Boreal Cold Season.JOURNAL OF CLIMATE,30(8). |
MLA | Hoell, Andrew,et al."Oceanic Origins of Historical Southwest Asia Precipitation During the Boreal Cold Season".JOURNAL OF CLIMATE 30.8(2017). |
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