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DOI | 10.1175/JCLI-D-18-0411.1 |
Impacts of the East Asian Winter Monsoon and Local Sea Surface Temperature on Heavy Snowfall over the Yeongdong Region | |
Kim, Jineun1,2; Yoon, Donghyuck1; Cha, Dong-Hyun1; Choi, Yonghan1,3; Kim, Joowan4; Son, Seok-Woo5 | |
2019-10-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:20页码:6783-6802 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | This research investigates the impact of local sea surface temperature (SST) on the 2-month (January and February) accumulated snowfall over the Yeongdong (YD) region. The YD region is strongly affected by synoptic-scale factors such as the East Asian winter monsoon (EAWM). The relationships of snowfall over the YD region to the EAWM and local SST are examined based on observational analyses and sensitivity experiments using a regional climate model. In the sensitivity experiments, local SST is replaced with the 33-yr mean winter SST (1982-2014). The observational analysis shows that both the synoptic environment and local SST are important factors for the occurrence of anomalous heavy snowfall over the YD region. The favorable synoptic environments can be characterized by eastward expansion of the Siberian high over Manchuria and corresponding enhancement of easterly anomalies over the YD region. These conditions are more frequently observed during the weak EAWM years than during the strong EAWM. Furthermore, warm SST over the East Sea contributes to heavy snowfall over the YD region by providing heat and moisture in the lower troposphere, which are important sources of energy for the formation of heavy snowfall. Warm SST anomalies over the East Sea enhance low-level moisture convergence over the YD region, while cold SST anomalies lead to reduced moisture convergence. Sensitivity experiments indicate that local SST can significantly affect snowfall amount over the YD region when the synoptic environments are favorable. However, without these synoptic conditions (expansion of the Siberian high and easterly inflow), the impact of local SST on the snowfall over the YD region is not significant. |
英文关键词 | Asia Atmosphere-ocean interaction Monsoons Snowfall Regional models Interannual variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000485239100001 |
WOS关键词 | PART I ; SCALE INTERACTIONS ; COLD SURGES ; PRECIPITATION ; NORTHERN ; MODEL ; PARAMETERIZATION ; VARIABILITY ; MECHANISMS ; SATELLITE |
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/187443 |
专题 | 气候变化 |
作者单位 | 1.Ulsan Natl Inst Sci & Technol, Sch Urban & Environm Engn, Ulsan, South Korea; 2.Natl Disaster Management Res Inst, Res Div, Ulsan, South Korea; 3.Korea Polar Res Inst, Incheon, South Korea; 4.Kongju Natl Univ, Dept Atmospher Sci, Gongju, South Korea; 5.Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea |
推荐引用方式 GB/T 7714 | Kim, Jineun,Yoon, Donghyuck,Cha, Dong-Hyun,et al. Impacts of the East Asian Winter Monsoon and Local Sea Surface Temperature on Heavy Snowfall over the Yeongdong Region[J]. JOURNAL OF CLIMATE,2019,32(20):6783-6802. |
APA | Kim, Jineun,Yoon, Donghyuck,Cha, Dong-Hyun,Choi, Yonghan,Kim, Joowan,&Son, Seok-Woo.(2019).Impacts of the East Asian Winter Monsoon and Local Sea Surface Temperature on Heavy Snowfall over the Yeongdong Region.JOURNAL OF CLIMATE,32(20),6783-6802. |
MLA | Kim, Jineun,et al."Impacts of the East Asian Winter Monsoon and Local Sea Surface Temperature on Heavy Snowfall over the Yeongdong Region".JOURNAL OF CLIMATE 32.20(2019):6783-6802. |
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