Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD027808 |
The Climatological Effect of Saharan Dust on Global Tropical Cyclones in a Fully Coupled GCM | |
Strong, Jeffrey D. O.1; Vecchi, Gabriel A.2,3; Ginoux, Paul4 | |
2018-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:10页码:5538-5559 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Climate in the tropical North Atlantic and West Africa is known to be sensitive to both the atmospheric burden and optical properties of aerosolized mineral dust. We investigate the global climatic response to an idealized perturbation in atmospheric burden of Saharan-born mineral dust, comparable to the observed changes between the 1960s and 1980s, using simulations with the high-resolution, fully coupled Geophysical Fluid Dynamics Laboratory Climate Model 2.5, Forecast-oriented Low Ocean Resolution version, across a range of realistic optical properties, with a specific focus on tropical cyclones. The direct radiative responses at the top of the atmosphere and at the surface along with regional hydrologic and thermodynamic responses are in agreement with previous studies, depending largely on the amount of aerosol absorption versus scattering. In all simulations, dust causes a decrease in tropical cyclone activity across the North Atlantic Ocean, as determined by a tropical cyclone tracking scheme, with the largest response occurring in the most absorbing and scattering optical regimes. These changes are partially corroborated by common local genesis potential indices. However, no clear-cut explanation can be developed upon inspection of their constituent variables. There are also nonnegligible anomalies in the North Pacific and Indian Oceans in these simulations. A relationship between accumulated cyclone energy and top of the atmosphere radiative flux anomalies is used to explain the North Atlantic anomalies, while analogy to known climate variations can help us understand the far-field response to the dust forcing. |
英文关键词 | dust tropical cyclones Sahara climatology |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435445600045 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; CLIMATE MODEL ; DESERT DUST ; AIR LAYER ; REFRACTIVE-INDEX ; MINERAL AEROSOL ; AFRICAN DUST ; IMPACT ; ATLANTIC ; VARIABILITY |
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/33298 |
专题 | 气候变化 |
作者单位 | 1.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA; 2.Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA; 3.Princeton Univ, Princeton Environm Inst, Princeton, NJ 08544 USA; 4.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA |
推荐引用方式 GB/T 7714 | Strong, Jeffrey D. O.,Vecchi, Gabriel A.,Ginoux, Paul. The Climatological Effect of Saharan Dust on Global Tropical Cyclones in a Fully Coupled GCM[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(10):5538-5559. |
APA | Strong, Jeffrey D. O.,Vecchi, Gabriel A.,&Ginoux, Paul.(2018).The Climatological Effect of Saharan Dust on Global Tropical Cyclones in a Fully Coupled GCM.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(10),5538-5559. |
MLA | Strong, Jeffrey D. O.,et al."The Climatological Effect of Saharan Dust on Global Tropical Cyclones in a Fully Coupled GCM".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.10(2018):5538-5559. |
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