DOI: 10.1007/s00382-012-1357-5
Scopus记录号: 2-s2.0-84868128385
论文题名: The interannual precipitation variability in the southern part of Iran as linked to large-scale climate modes
作者: Pourasghar F. ; Tozuka T. ; Jahanbakhsh S. ; Sari Sarraf B. ; Ghaemi H. ; Yamagata T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 39, 期: 2017-09-10 起始页码: 2329
结束页码: 2341
语种: 英语
英文关键词: ENSO
; Interannual variation
; IOD
; Iran
; Precipitation
英文摘要: The interannual variation of precipitation in the southern part of Iran and its link with the large-scale climate modes are examined using monthly data from 183 meteorological stations during 1974-2005. The majority of precipitation occurs during the rainy season from October to May. The interannual variation in fall and early winter during the first part of the rainy season shows apparently a significant positive correlation with the Indian Ocean Dipole (IOD) and El Niño-Southern Oscillation (ENSO). However, a partial correlation analysis used to extract the respective influence of IOD and ENSO shows a significant positive correlation only with the IOD and not with ENSO. The southeasterly moisture flux anomaly over the Arabian Sea turns anti-cyclonically and transport more moisture to the southern part of Iran from the Arabian Sea, the Red Sea, and the Persian Gulf during the positive IOD. On the other hand, the moisture flux has northerly anomaly over Iran during the negative IOD, which results in reduced moisture supply from the south. During the latter part of the rainy season in late winter and spring, the interannual variation of precipitation is more strongly influenced by modes of variability over the Mediterranean Sea. The induced large-scale atmospheric circulation anomaly controls moisture supply from the Red Sea and the Persian Gulf. © 2012 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55104
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Physical Geography, Faculty of Humanities and Social Science, The University of Tabriz, Tabriz, Iran; Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Iran Meteorological Organization, Tehran, Iran; Application Laboratory/JAMSTEC, Yokohama, Kanagawa, Japan
Recommended Citation:
Pourasghar F.,Tozuka T.,Jahanbakhsh S.,et al. The interannual precipitation variability in the southern part of Iran as linked to large-scale climate modes[J]. Climate Dynamics,2012-01-01,39(2017-09-10)