A Comparative Study of the Landfall Precipitation by Tropical Cyclones ARB 01 (2002) and Luban (2018) near the Arabian Peninsula

Remote Sensing

Chuqi Xia¹  Yusheng Cui¹  Haibin Lü¹  Dawei Shi²  Changming Dong³ 

[1] Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China;Lianyungang Meteorological Bureau, Lianyungang 222005, China;School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China;

关键词: tropical cyclones;    precipitation;    extreme tropical cyclone precipitation;    extreme precipitation;    Arabian Sea;   

DOI  :  10.3390/rs14051194

来源: DOAJ

【 摘 要 】

Considering the high risk of flooding during tropical cyclones (TCs), there is great practical significance in researching and predicting precipitation during TC landfalls. Using NECP FNL reanalysis data and GPM_MERGIR datasets, two TCs with similar trajectories, ARB 01 in 2002 and Luban in 2018, were analyzed. For ARB 01 and Luban, there are separate effects of wind shear at different heights on the development of vertical motion. Meridional wind shear affects the main deviation direction of vertical motion (downshear), while zonal wind shear mainly affects the deviation direction of vertical motion to the left or right of downshear. The divergent configuration of wind promotes the development of vertical motion. The influence of wind speed provided ideal conditions for ARB 01 to generate symmetric precipitation along its path when it made landfall. Additionally, more water vapor support was obtained from the southern Indian Ocean, which enabled ARB 01 to have a larger and broader average precipitation rate after landing.

【 授权许可】

Unknown