Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.04.006 |
Fuel for cyclones: The water vapor budget of a hurricane as dependent on its movement | |
Makarieva, Anastassia M.1,2; Gorshkov, Victor G.1,2; Nefiodov, Andrei V.1; Chikunov, Alexander V.3,4; Sheil, Douglas5; Nobre, Antonio Donato6; Li, Bai-Lian2 | |
2017-09-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 193 |
文章类型 | Article |
语种 | 英语 |
国家 | Russia; USA; Norway; Brazil |
英文摘要 | Despite the dangers associated with tropical cyclones and their rainfall, the origin of the moisture in these storms, which include destructive hurricanes and typhoons, remains surprisingly uncertain. Existing studies have focused on the region 40-400 km from a cyclone's center. It is known that the rainfall within this area cannot be explained by local processes alone but requires imported moisture. Nonetheless, the dynamics of this imported moisture appears unknown. Here, considering a region up to three thousand kilometers from cyclone center, we analyze precipitation, atmospheric moisture and movement velocities for severe tropical cyclones - North Atlantic hurricanes. Our findings indicate that even over such large areas a hurricane's rainfall cannot be accounted for by concurrent evaporation. We propose instead that a hurricane consumes pre-existing atmospheric water vapor as it moves. The propagation velocity of the cyclone, i.e. the difference between its movement velocity and the mean velocity of the surrounding air (steering flow), determines the water vapor budget. Water vapor available to the hurricane through its movement makes the hurricane self-sufficient at about 700 km from the hurricane center obviating the need to concentrate moisture from greater distances. Such hurricanes leave a dry wake, whereby rainfall is suppressed by up to 40% compared to the local long-term mean. The inner radius of this dry footprint approximately coincides with the hurricane's radius of water self-sufficiency. We discuss how Carnot efficiency considerations do not constrain the power of such open systems. Our findings emphasize the incompletely understood role and importance of atmospheric moisture stocks and dynamics in the behavior of severe tropical cyclones. |
英文关键词 | Precipitation Tropical cyclones Condensation |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403995200018 |
WOS关键词 | ATLANTIC TROPICAL CYCLONES ; SURROUNDING FLOW RELATIONSHIPS ; PHYSICAL INITIALIZATION ; MAXIMUM INTENSITY ; PART II ; PRECIPITATION ; MOTION ; MODEL ; WIND ; DYNAMICS |
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/15287 |
专题 | 地球科学 |
作者单位 | 1.Petersburg Nucl Phys Inst, Theoret Phys Div, St Petersburg 188300, Russia; 2.Univ Calif Riverside, USDA China MOST Joint Res Ctr AgroEcol & Sustaina, Riverside, CA 92521 USA; 3.Inst World Ideas, Udaltsova St 1A, Moscow 119415, Russia; 4.Princeton Inst Life Sci, Princeton, NJ USA; 5.Norwegian Univ Life Sci, Fac Environm Sci & Nat Resource Management, As, Norway; 6.Ctr Ciencia Sistema Terrestre INPE, BR-12227010 Sao Paulo, Brazil |
推荐引用方式 GB/T 7714 | Makarieva, Anastassia M.,Gorshkov, Victor G.,Nefiodov, Andrei V.,et al. Fuel for cyclones: The water vapor budget of a hurricane as dependent on its movement[J]. ATMOSPHERIC RESEARCH,2017,193. |
APA | Makarieva, Anastassia M..,Gorshkov, Victor G..,Nefiodov, Andrei V..,Chikunov, Alexander V..,Sheil, Douglas.,...&Li, Bai-Lian.(2017).Fuel for cyclones: The water vapor budget of a hurricane as dependent on its movement.ATMOSPHERIC RESEARCH,193. |
MLA | Makarieva, Anastassia M.,et al."Fuel for cyclones: The water vapor budget of a hurricane as dependent on its movement".ATMOSPHERIC RESEARCH 193(2017). |
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