ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Relationship between High-temperature Weather in Panyu District of Guangzhou City and Tropical Cyclones
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Abstract:
Based on the meteorological data from 1960 to 2004, the relationship between high-temperature weathers(Tmax≥35℃) and tropical cyclones is statistically analyzed. The results show that (1) High-temperature weathers, especially≥36℃, have a close relationship with the exist of tropical cyclones in the area(15—35°N, 110—135°E), and the higher the temperature is, the more the probobility of severe tropical cyclones and typhoons. Only the effect of subtropical high but no tropical cyclones, it has a less chance to appear high-temperature weathers of ≥36℃, and has no appearance of high-temperature weathers of ≥37℃. (2) Tropical cyclones originated from the Northwest Pacific have an absolutely more contribution to high-temperature than that of the source from South China Sea. Whether their sources are in South China Sea or in Northwest Pacific, the ratio of appearing high-temperature weathers have a jump from tropical depression to tropical storm with the intensity, and also do so from tropical storm to severe tropical storm. (3) When high-temperature weathers appeared in July to September, the probability of exist of tropical cyclones was from 68% to 87%. High-temperature weathers related to tropical cyclones in the tropical cyclone effect area have a higher ratio of appearance in July, and the ratio of high-temperature weathers is more than 35% when severe tropical storms or typhoons exist.
Keywords:
high-temperature weather, tropical cyclone, tropical cyclone effect area
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