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DOI | 10.1007/s00382-016-3402-2 |
Winter temperatures over the Korean Peninsula and East Asia: development of a new index and its application to seasonal forecast | |
Kim, Seon Tae1; Sohn, Soo-Jin1; Kug, Jong-Seong2 | |
2017-09-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | This study proposes a new index for monitoring and predicting winter temperatures of the Korean Peninsula based on the dominant atmospheric winter teleconnection patterns. The utilization of this index is further extended to the East Asian Winter Monsoon (EAWM) index because the new index is found to well represent the main feature of the EAWM circulation. Among the teleconnection patterns, the East Atlantic (EA) and Western Pacific (WP) patterns are found to be most strongly correlated with winter temperatures via their partial association with changes in sea level pressure (SLP) around the Korean Peninsula, i.e., the EA and WP patterns are associated with SLP variation over the Siberian High region and the Kuroshio extension region to the east of Japan, respectively. On the basis of this relationship, the two regions representing the northwest-to-southeast SLP gradients are determined to define the new index. It is found that the new index can represent the Korean winter temperatures consistently well regardless of their considerable decadal changes. When compared with the existing SLP-based EAWM indices, the new index shows the best performance in delineating winter air temperatures, not only in the Korean Peninsula but also in the entire East Asian region. We also assess the prediction skill of the new index with seasonal coupled forecast models of the APEC Climate Center of Korea and its capability to predict winter temperatures. This assessment shows that the new index has potential for operationally predicting and monitoring winter temperatures in Korea and the whole of East Asia. |
英文关键词 | Teleconnection EAWM Winter temperature prediction |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408718200005 |
WOS关键词 | ARCTIC OSCILLATION ; TELECONNECTION PATTERNS ; GEOPOTENTIAL HEIGHT ; CLIMATE VARIABILITY ; ENSO PREDICTION ; MONSOON ; PREDICTABILITY ; REANALYSIS ; ENERGETICS ; ENSEMBLE |
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/36138 |
专题 | 气候变化 |
作者单位 | 1.APEC Climate Ctr, Climate Predict Dept, Busan, South Korea; 2.Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang, South Korea |
推荐引用方式 GB/T 7714 | Kim, Seon Tae,Sohn, Soo-Jin,Kug, Jong-Seong. Winter temperatures over the Korean Peninsula and East Asia: development of a new index and its application to seasonal forecast[J]. CLIMATE DYNAMICS,2017,49. |
APA | Kim, Seon Tae,Sohn, Soo-Jin,&Kug, Jong-Seong.(2017).Winter temperatures over the Korean Peninsula and East Asia: development of a new index and its application to seasonal forecast.CLIMATE DYNAMICS,49. |
MLA | Kim, Seon Tae,et al."Winter temperatures over the Korean Peninsula and East Asia: development of a new index and its application to seasonal forecast".CLIMATE DYNAMICS 49(2017). |
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