Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.11.002 |
Impact of atmospheric circulation types on southwest Asian dust and Indian summer monsoon rainfall | |
Kaskaoutis, D. G.1; Houssos, E. E.2; Solmon, F.3; Legrand, M.4; Rashki, A.5; Dumka, U. C.6; Francois, P.4; Gautam, R.7; Singh, R. P.8 | |
2018-03-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 201页码:189-205 |
文章类型 | Article |
语种 | 英语 |
国家 | Greece; France; Iran; India; USA |
英文摘要 | This study examines the meteorological feedback on dust aerosols and rainfall over the Arabian Sea and India during the summer monsoon using satellite data, re-analysis and a regional climate model. Based on days with excess aerosol loading over the central Ganges basin during May September, two distinct atmospheric circulation types (weather clusters) are identified, which are associated with different dust-aerosol and rainfall distributions over south Asia, highlighting the role of meteorology on dust emissions and monsoon rainfall. Each cluster is characterized by different patterns of mean sea level pressure (MSLP), geopotential height at 700 hPa (Z700) and wind fields at 1000 hPa and at 700 hPa, thus modulating changes in dust-aerosol loading over the Arabian Sea. One cluster is associated with deepening of the Indian/Pakistan thermal low leading to (i) increased cyclonicity and thermal convection over northwestern India and Arabian Peninsula, (ii) intensification of the southwest monsoon off the Horn of Africa, iii) increase in dust emissions from Rub-Al-Khali and Somalian deserts, (iv) excess dust accumulation over the Arabian Sea and, (v) strengthening of the convergence of humid air masses and larger precipitation over Indian landmass compared to the other cluster. The RegCM4.4 model simulations for dust-aerosol and precipitation distributions support the meteorological fields and satellite observations, while the precipitation over India is positively correlated with the aerosol loading over the Arabian Sea on daily basis for both weather clusters. This study highlights the key role of meteorology and atmospheric dynamics on dust life cycle and rainfall over the monsoon-influenced south Asia. |
英文关键词 | Atmospheric circulation types Synoptic meteorology Arabian Sea Dust Indian monsoon rainfall RegCM4 |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418981500015 |
WOS关键词 | AEROSOL OPTICAL DEPTH ; REGIONAL CLIMATE MODEL ; INDO-GANGETIC PLAINS ; ARABIAN PENINSULA ; MIDDLE-EAST ; DESERT DUST ; MEDITERRANEAN BASIN ; SIZE DISTRIBUTION ; VARIABILITY ; STORMS |
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/38080 |
专题 | 地球科学 |
作者单位 | 1.Natl Observ Athens, Inst Environm Res & Sustainable Dev, Atmospher Res Team, Athens 11810, Greece; 2.Univ Ioannina, Dept Phys, Lab Meteorol, GR-45110 Ioannina, Greece; 3.Lab Adrol Toulouse, F-31400 Toulouse, France; 4.Univ Lille 1, LOA, F-59655 Villeneuve Dascq, France; 5.Ferdowsi Univ Mashhad, Nat Resources & Environm Coll, Mashhad, Iran; 6.Aryabhatta Res Inst Observat Sci, Naini Tal 263001, India; 7.Environm Def Fund, Washington, DC 20009 USA; 8.Chapman Univ, Schmid Coll Sci & Technol, Sch Life & Environm Sci, Orange, CA 92866 USA |
推荐引用方式 GB/T 7714 | Kaskaoutis, D. G.,Houssos, E. E.,Solmon, F.,et al. Impact of atmospheric circulation types on southwest Asian dust and Indian summer monsoon rainfall[J]. ATMOSPHERIC RESEARCH,2018,201:189-205. |
APA | Kaskaoutis, D. G..,Houssos, E. E..,Solmon, F..,Legrand, M..,Rashki, A..,...&Singh, R. P..(2018).Impact of atmospheric circulation types on southwest Asian dust and Indian summer monsoon rainfall.ATMOSPHERIC RESEARCH,201,189-205. |
MLA | Kaskaoutis, D. G.,et al."Impact of atmospheric circulation types on southwest Asian dust and Indian summer monsoon rainfall".ATMOSPHERIC RESEARCH 201(2018):189-205. |
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