DOI: 10.1002/2016GL070246
论文题名: Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast
作者: Kurita N. ; Hirasawa N. ; Koga S. ; Matsushita J. ; Steen-Larsen H.C. ; Masson-Delmotte V. ; Fujiyoshi Y.
刊名: Geophysical Research Letters
ISSN: 0094-8692
EISSN: 1944-8423
出版年: 2016
卷: 43, 期: 17 起始页码: 9298
结束页码: 9305
语种: 英语
英文关键词: East Antarctic coast
; marine air intrusion
; water vapor isotope
Scopus关键词: Climatology
; Isotopes
; Meteorology
; Storms
; Water vapor
; Antarctic coasts
; Atmospheric circulation
; Atmospheric circulation anomaly
; Isotopic variations
; Isotopically enriched
; Large-scale circulation
; Marine air
; Precipitation events
; Mercury (metal)
; airflow
; atmospheric circulation
; cyclone
; isotopic composition
; meridional circulation
; precipitation (climatology)
; water vapor
; Antarctica
; Australia
; East Antarctica
; Southern Ocean
; Syowa Station
英文摘要: Marine air intrusions into Antarctica play a key role in high-precipitation events. Here we use shipboard observations of water vapor isotopologues between Australia and Syowa on the East Antarctic coast to elucidate the mechanism by which large-scale circulation influences marine air intrusions. The temporal isotopic variations at Syowa reflect the meridional movement of a marine air front. They are also associated with atmospheric circulation anomalies that enhance the southward movement of cyclones over the Southern Ocean. The relationship between large-scale circulation and the movement of the front is explained by northerly winds which, in association with cyclones, move toward the Antarctic coast and push marine air with isotopically enriched moisture into the inland covered by glacial air with depleted isotopic values. Future changes in large-scale circulation may have a significant impact on the frequency and intensity of marine air intrusion into Antarctica. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987644166&doi=10.1002%2f2016GL070246&partnerID=40&md5=a56969945063856da174e843a6da6039
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9655
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
Recommended Citation:
Kurita N.,Hirasawa N.,Koga S.,et al. Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast[J]. Geophysical Research Letters,2016-01-01,43(17).