Evolution of convective systems across Hangzhou Bay during a sea-breeze-effect thunderstorm event

In this study, the impact of surface water body on the evolution of thunderstorm events crossing Hangzhou Bay is investigated based on the observations and numerical simulations. The organized convective systems crossing Hangzhou Bay usually weaken first after moving onto the water surface, and then...

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Bibliographic Details
Published in:Meteorology and atmospheric physics 2019-10, Vol.131 (5), p.1415-1428
Main Authors: Liu, Jianyong, Yang, Shunan, Chu, Kekuan, Tan, Zhe-Min
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Sciences
Boundary layers
Breeze effects
Coastal storms
Coasts
Computer simulation
Convection
Convective systems
Convergence
Earth and Environmental Science
Earth Sciences
Evolution
Experiments
Friction
Math. Appl. in Environmental Science
Meteorology
Numerical simulations
Original Paper
Precipitation
Simulation
Storms
Surface temperature
Surface water
Terrestrial Pollution
Thunderstorms
Waste Water Technology
Water bodies
Water Management
Water Pollution Control
Water temperature
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Summary:In this study, the impact of surface water body on the evolution of thunderstorm events crossing Hangzhou Bay is investigated based on the observations and numerical simulations. The organized convective systems crossing Hangzhou Bay usually weaken first after moving onto the water surface, and then re-intensify after landing onto southern coastline. The weakening of storm over the bay is mainly ascribed to the low water surface temperature, that is, the decreasing of water surface temperature is unfavorable for the development of storm. The re-intensification of storm over the southern coastline is due to the boundary layer convergence strengthening along the sea–land interface. For the organized thunderstorm, the enhancement of large-scale onshore wind can increase boundary layer convergence along both northern and southern coastlines, which leads to enhancement of convection and precipitations on the northern coastline.
ISSN:0177-7971
1436-5065
DOI:10.1007/s00703-018-0646-x