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DOI | 10.1029/2018JD029760 |
Effects of the Sea Surface Roughness and Sea Spray-Induced Flux Parameterization on the Simulations of a Tropical Cyclone | |
Prakash, Kumar Ravi; Pant, Vimlesh; Nigam, Tanuja | |
2019-12-19 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:24页码:14037-14058 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | A tropical cyclone (TC) interacts with the ocean through the interchange of surface fluxes of heat and momentum at the air-sea interface. The sustainability and intensification of TCs are maintained by the enhancement in the latent heat flux in the high wind speed regime. An accurate calculation of heat fluxes is vital to understand the dynamics of the TC. The sea surface roughness is a crucial parameter that modulates the air-sea fluxes. A coupled ocean-atmosphere-wave model is used to simulate TC Vardah over the Bay of Bengal during 10-15 December 2016. The study focuses on the influence of sea surface roughness on the heat fluxes, track, and intensity of TC Vardah. Four numerical experiments are performed with different parameterization schemes for surface roughness on the basis of (i) frictional velocity (Charnock), (ii) wave age, (iii) wave steepness, and (iv) a combination of wave steepness and wave age. A change in ocean surface roughness results in the modification of the cyclone track and heat fluxes. However, the effect of sea spray on the simulation of wind intensity of TC Vardah is only marginal. Out of the four experiments, the wave age-based roughness parameterization was found to improve cyclone track, wind, and, hence, the generation of wind waves on the sea surface. In the case study of TC Vardah, the dynamic sea spray reduces surface wind speed up to 1.5 m/s which is within the uncertainty range of the model. An intercomparison of model experiments reveals the impact of surface heat fluxes on the TC Vardha characteristics. |
英文关键词 | tropical cyclone coupled model sea spray sea surface roughness parameterization |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000503409300001 |
WOS关键词 | TURBULENCE CLOSURE-MODEL ; YAMADA LEVEL-3 MODEL ; HIGH-WIND ; BULK PARAMETERIZATION ; COUPLED MODEL ; OCEAN MODEL ; WAVE AGE ; ATMOSPHERE ; DEPENDENCE ; DRAG |
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/225957 |
专题 | 环境与发展全球科技态势 |
作者单位 | Indian Inst Technol Delhi, Ctr Atmospher Sci, New Delhi, India |
推荐引用方式 GB/T 7714 | Prakash, Kumar Ravi,Pant, Vimlesh,Nigam, Tanuja. Effects of the Sea Surface Roughness and Sea Spray-Induced Flux Parameterization on the Simulations of a Tropical Cyclone[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(24):14037-14058. |
APA | Prakash, Kumar Ravi,Pant, Vimlesh,&Nigam, Tanuja.(2019).Effects of the Sea Surface Roughness and Sea Spray-Induced Flux Parameterization on the Simulations of a Tropical Cyclone.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(24),14037-14058. |
MLA | Prakash, Kumar Ravi,et al."Effects of the Sea Surface Roughness and Sea Spray-Induced Flux Parameterization on the Simulations of a Tropical Cyclone".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.24(2019):14037-14058. |
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