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DOI | 10.1007/s00382-017-3975-4 |
Multi-scale temporospatial variability of the East Asian Meiyu-Baiu fronts: characterization with a suite of new objective indices | |
Li, Yana1,2; Deng, Yi2; Yang, Song1,3; Zhang, Henian2 | |
2018-09-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:1659-1670 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The Meiyu-Baiu front (MBF) is the primary weather system modulating the monsoonal rainfall in East Asia, and it exhibits pronounced variability across multiple temporal and spatial scales. A suite of new objective indices based upon daily reanalysis data are developed to characterize such variability, which include an "intensity" index effectively measuring the meridional gradient of equivalent potential temperature across the frontal zone, a "location" index documenting the central latitude and longitude of the front, and a "stationarity" index corresponding to the standard deviation of the daily central latitude. All these indices are characterized by strong interannual to interdecadal variations. Specifically, the MBF has shown a tendency of southwestward shift since the mid-1990s and become more stationary over southern China with reduced intraseasonal meandering. The western North Pacific subtropical high (WNPSH) is the main circulation feature affecting the location of the MBF on interannual timescales. The MBF moves northward (southward) when the WNPSH is anomalously strong (weak) and the surface high over the region of 35A degrees-50A degrees N/100A degrees-120A degrees E is anomalously weak (strong). When the WNPSH is strong, the MBF is often situated northwest to its climatological position and becomes more stationary. On interdecadal timescales, enhanced activity of high latitude blocking over East Asia is often accompanied with a stronger but less stationary MBF while a negative phase of the Arctic Oscillation favors a southward-shifted and more stationary MBF. |
英文关键词 | Meiyu-Baiu fronts Objective indices Multi-temporospatial variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442433200004 |
WOS关键词 | SEA-SURFACE TEMPERATURES ; SUMMER MONSOON ; INTERDECADAL VARIATIONS ; RAINY-SEASON ; PART I ; CHINA ; SYSTEM ; OSCILLATION ; PRECIPITATION ; BLOCKING |
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/35600 |
专题 | 气候变化 |
作者单位 | 1.Sun Yat Sen Univ, Sch Atmospher Sci, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China; 2.Georgia Inst Technol, Sch Earth & Atmospher Sci, 311 Ferst Dr, Atlanta, GA 30332 USA; 3.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Yana,Deng, Yi,Yang, Song,et al. Multi-scale temporospatial variability of the East Asian Meiyu-Baiu fronts: characterization with a suite of new objective indices[J]. CLIMATE DYNAMICS,2018,51:1659-1670. |
APA | Li, Yana,Deng, Yi,Yang, Song,&Zhang, Henian.(2018).Multi-scale temporospatial variability of the East Asian Meiyu-Baiu fronts: characterization with a suite of new objective indices.CLIMATE DYNAMICS,51,1659-1670. |
MLA | Li, Yana,et al."Multi-scale temporospatial variability of the East Asian Meiyu-Baiu fronts: characterization with a suite of new objective indices".CLIMATE DYNAMICS 51(2018):1659-1670. |
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