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DOI | 10.1029/2017JD028076 |
Direct Measurements of Momentum Flux and Dissipative Heating in the Surface Layer of Tropical Cyclones During Landfalls | |
Ming, Jie1,2,3; Zhang, Jun A.4,5 | |
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:4926-4938 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | This study analyzes high-frequency wind data collected by research towers in the surface layer of Typhoons Hagupit (2008) and Chanthu (2010) to investigate the characteristics of the momentum flux, turbulent kinetic energy (TKE), drag coefficient, and dissipative heating (DH) during landfalls. It is found that the momentum flux TKE and DH increase with the wind speed up to the maximum observed wind speed (40m/s), in agreement with previous studies that presented eddy correlation flux data in a similar condition but with lower maximum observed wind speed. However, the momentum flux, TKE, drag coefficient, and DH are found to be substantially larger in Typhoon Chanthu (2010) than those in Typhoon Hagupit (2008) at a given wind speed, likely due to much rougher surface conditions surrounding the tower deployed in Typhoon Chanthu (2010). Furthermore, the DH is calculated using two different methods: (1) based on surface-layer theory and (2) based on the standard turbulent spectra method. It is found that the first method tends to overestimate the value of DH compared to the second method, and the overestimation of the DH by the first method is much smaller over rougher underlying surface than over the smoother underlying surface. Our analysis shows that the magnitude of the DH over land is as large as the sensible heat flux (100W/m(2)) previously observed over the ocean, which should not be neglected in numerical models simulating tropical cyclones during landfalls. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435445600009 |
WOS关键词 | HURRICANE BOUNDARY-LAYER ; HIGH-RESOLUTION SIMULATIONS ; AIR-SEA FLUXES ; EXCHANGE COEFFICIENTS ; DRAG COEFFICIENT ; WIND SPEEDS ; PART I ; INTENSITY ; PARAMETERIZATION ; MODEL |
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/32443 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ, Key Lab Mesoscale Severe Weather, MOE, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China; 3.Nanjing Univ, Joint Ctr Atmospher Radar Res, NJU, CMA, Nanjing, Jiangsu, Peoples R China; 4.NOAA, Atlantic Oceanog & Meteorol Lab, Hurricane Res Div, Miami, FL 33149 USA; 5.Univ Miami, Cooperat Inst Marine & Atmospher Studies, Miami, FL USA |
推荐引用方式 GB/T 7714 | Ming, Jie,Zhang, Jun A.. Direct Measurements of Momentum Flux and Dissipative Heating in the Surface Layer of Tropical Cyclones During Landfalls[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(10):4926-4938. |
APA | Ming, Jie,&Zhang, Jun A..(2018).Direct Measurements of Momentum Flux and Dissipative Heating in the Surface Layer of Tropical Cyclones During Landfalls.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(10),4926-4938. |
MLA | Ming, Jie,et al."Direct Measurements of Momentum Flux and Dissipative Heating in the Surface Layer of Tropical Cyclones During Landfalls".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.10(2018):4926-4938. |
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