Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.4753 |
Observed short- and long-term changes in summer precipitation over South Korea and their links to large-scale circulation anomalies | |
Baek, Hee-Jeong1,2; Kim, Maeng-Ki; Kwon, Won-Tae1,2 | |
2017-02-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | We investigated short- and long-term changes in total and extreme summer precipitation and the characteristic patterns of atmospheric circulation and sea surface temperature (SST) anomalies related to wet summers over South Korea. Over the last century (1913-2012), the total and extreme summer precipitation showed a significant increase of 2.62 and 4.45% decade(-1), respectively. Because extreme summer precipitation increased more rapidly than total summer precipitation, the contribution of extreme precipitation to total precipitation increased significantly by 2.48% decade(-1). A two-peak rainy season was substantially intensified, with a slight shift and a large increase of precipitation during the monsoon break period, indicating a shortening of the monsoon break period. The 20-year return values of daily maximum precipitation increased at all stations except Mokpo, showing changes in the frequency of extreme events. During the last 40 years (1973-2012), the pattern of change in the precipitation indices was spatially heterogeneous, with a particularly significant increasing trend in extreme summer precipitation over the North-central portion of western South Korea. When compared with long-term trends over 1912-2012, recent short- term trends showed more rapid increases in all precipitation indices, with the exception of the number of consecutive dry days. In addition, the number of consecutive wet days (CWD) increased significantly during the last 40 years, whereas the long-term trend over the last century for CWD was not significant. These regional trends were confirmed by field significance at the 90% confidence level. From the composite analysis results, the positive anomalous North Pacific subtropical high, intensification of the upper-level westerly Jet over Korea and its vertical coupling with the anomalous strong low-level westerlies, and anomalous warm SST values in the western North Pacific region were linked to recent increases in extreme summer precipitation. |
英文关键词 | summer precipitation extreme trend analysis Korea large-scale circulation global warming |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393415100031 |
WOS关键词 | EXTREME PRECIPITATION ; FIELD SIGNIFICANCE ; CLIMATE EXTREMES ; RECENT TRENDS ; TEMPERATURE ; INDEX ; PERFORMANCE ; CANADA ; TESTS |
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/36656 |
专题 | 气候变化 |
作者单位 | 1.Kongju Natl Univ, Dept Atmospher Sci, 56 Gongjudaehak Ro, Gongju 314701, South Korea; 2.Natl Inst Meteorol Sci, Numer Modeling Bur, Seoul, South Korea |
推荐引用方式 GB/T 7714 | Baek, Hee-Jeong,Kim, Maeng-Ki,Kwon, Won-Tae. Observed short- and long-term changes in summer precipitation over South Korea and their links to large-scale circulation anomalies[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(2). |
APA | Baek, Hee-Jeong,Kim, Maeng-Ki,&Kwon, Won-Tae.(2017).Observed short- and long-term changes in summer precipitation over South Korea and their links to large-scale circulation anomalies.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(2). |
MLA | Baek, Hee-Jeong,et al."Observed short- and long-term changes in summer precipitation over South Korea and their links to large-scale circulation anomalies".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.2(2017). |
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