Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04644-0 |
New real-time indices for the quasi-biweekly oscillation over the Asian summer monsoon region | |
Qian, Yitian1; Hsu, Pang-Chi1; Kazuyoshi, Kikuchi2 | |
2019-09-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:2603-2624 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The quasi-biweekly oscillation (QBWO), with a periodicity of 10-30 days, is one of the most important modes of intraseasonal variability over the Asian summer monsoon region. Unlike the lower frequency (30-60 days) Madden-Julian Oscillation, which has had several real-time indices proposed for monitoring and predicting its state, there are very few equivalents for the QBWO. Given that extended empirical orthogonal function (EEOF) analysis is arguably more suitable than empirical orthogonal function analysis for capturing the canonical spatial and temporal structure of a propagating wave system, we introduce two new indices for real-time monitoring of the QBWO over the tropical western North Pacific (WNP) and Indian Ocean (IO), separately, by projecting outgoing longwave radiation (OLR) anomalies onto the two leading modes of EEOF analysis for the 10-30-day-filtered OLR anomalies over the two basins during 1980-2012. The newly proposed QBWO indices faithfully represent the vigorous QBWO activities over the WNP and IO, which are underestimated and/or not necessarily well represented by existing indices. It is also shown that the indices are able to reveal the connections between the QBWO and other pronounced phenomena, such as the onset of the South China Sea and Indian monsoons, the occurrence of extreme rainfall events, and tropical cyclone genesis. Thus, monitoring and predicting the evolution of the QBWO in these two basins based on the new QBWO indices should help in the quest to mitigate future damage caused by weather-related disasters at an extended lead time. |
英文关键词 | Quasi-biweekly oscillation Real-time monitoring EEOF analysis |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483626900008 |
WOS关键词 | WESTERN NORTH PACIFIC ; SOUTH CHINA SEA ; TROPICAL CYCLONE GENESIS ; INTRASEASONAL OSCILLATIONS ; INDIAN MONSOON ; SCALE DISTURBANCES ; MODULATION ; PRECIPITATION ; VARIABILITY ; DYNAMICS |
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/186336 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change, Key Lab Meteorol Disaster,Minist Educ, Nanjing 210044, Jiangsu, Peoples R China; 2.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Qian, Yitian,Hsu, Pang-Chi,Kazuyoshi, Kikuchi. New real-time indices for the quasi-biweekly oscillation over the Asian summer monsoon region[J]. CLIMATE DYNAMICS,2019,53:2603-2624. |
APA | Qian, Yitian,Hsu, Pang-Chi,&Kazuyoshi, Kikuchi.(2019).New real-time indices for the quasi-biweekly oscillation over the Asian summer monsoon region.CLIMATE DYNAMICS,53,2603-2624. |
MLA | Qian, Yitian,et al."New real-time indices for the quasi-biweekly oscillation over the Asian summer monsoon region".CLIMATE DYNAMICS 53(2019):2603-2624. |
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