气候变化领域集成服务门户(CCPortal): Relations between interannual variability of regional-scale Indonesian precipitation and large-scale climate modes during 1960

CCPortal

DOI	10.1175/JCLI-D-19-0811.1
	Relations between interannual variability of regional-scale Indonesian precipitation and large-scale climate modes during 1960–2007
	Alsepan G.; Minobe S.
发表日期	2020
ISSN	0894-8755
起始页码	5271
结束页码	5291
卷号	33 期号:12
英文摘要	Regional-scale precipitation responses over Indonesia to major climate modes in the tropical Indo–Pacific Oceans, namely canonical El Niño, El Niño Modoki, and the Indian Ocean dipole (IOD), and how the responses are related to large-scale moisture convergences are investigated. The precipitation responses, analyzed using a high-spatial-resolution (0.58 3 0.58) terrestrial precipitation dataset for the period 1960–2007, exhibit differences between the dry (July–September) and wet (November–April) seasons. Canonical El Niño strongly reduces precipitation in central to eastern Indonesia from the dry season to the early wet season and northern Indonesia in the wet season. El Niño Modoki also reduces precipitation in central to eastern Indonesia during the dry season, but conversely increases precipitation in western Indonesia in the wet season. Moisture flux analysis indicates that corresponding to the dry (wet) season precipitation reduction due to the canonical El Niño and El Niño Modoki anomalous divergence occurs around the southern (northern) edge of the convergence zone when one of the two edges is located near the equator (108S–158N) associated with their seasonal migration. This largely explains the seasonality and regionality of precipitation responses to canonical El Niño and El Niño Modoki. IOD reduces precipitation in southwestern Indonesia in the dry season, associated with anomalous moisture flux divergence. The seasonality of precipitation response to IOD is likely to be controlled by the seasonality of local sea surface temperature anomalies in the eastern pole of the IOD. © 2020 American Meteorological Society.
英文关键词	Drought; Oceanography; Surface waters; Convergence zones; High spatial resolution; Indian ocean dipoles; Interannual variability; Moisture convergence; Sea surface temperature anomalies; Season precipitation; Seasonal migration; Moisture; annual variation; climate modeling; dry season; El Nino; Indian Ocean Dipole; precipitation (climatology); sea surface temperature; seasonality; wet season; Indian Ocean; Indian Ocean (Tropical); Indonesia; Pacific Ocean; Pacific Ocean (Tropical)
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171292
作者单位	Department of Natural History Sciences, Graduate School of Science, Hokkaido University, Sapporo, Japan; Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
推荐引用方式 GB/T 7714	Alsepan G.,Minobe S.. Relations between interannual variability of regional-scale Indonesian precipitation and large-scale climate modes during 1960–2007[J],2020,33(12).
APA	Alsepan G.,&Minobe S..(2020).Relations between interannual variability of regional-scale Indonesian precipitation and large-scale climate modes during 1960–2007.Journal of Climate,33(12).
MLA	Alsepan G.,et al."Relations between interannual variability of regional-scale Indonesian precipitation and large-scale climate modes during 1960–2007".Journal of Climate 33.12(2020).