Statistical Study on the Thermodynamic Effect of Distant Disturbances Caused by Tropical Cyclones
刊名 Meteorological and Environmental Research
作者 Qinshuang SUN, Ju WANG*, Tianju WANG, Yiyang PAN, Chenhan LIU, Zixuan WANG, Yicheng ZHOU
作者单位 College of Meteorology and Oceanography, National University of Defense Technology, Changsha 410000, China
DOI 10.19547/j.issn2152-3940.2025.03.005
年份 2025
刊期 3
页码 16-21
关键词 Teleconnection quantity; Statistical analysis; Significance test; Distant disturbance; Thermodynamic effect
摘要 Multi-angle statistical analysis of tropical cyclones (TCs) and their distant thermodynamic disturbances over Northwest Pacific from July to September during 2001-2020 was conducted. The results show that TCs could trigger distant thermodynamic disturbances, which mainly caused an increase in air pressure and a rise in temperature in northern China. The distant thermodynamic disturbances triggered by TCs differed in spatial distribution and intensity in different months. In the same month, the spatial distribution of such disturbances triggered by high-intensity TCs was consistent with the overall pattern, and there was a significant increase in intensity and area. From the probability of TC activities and the significance test of variance of analysis under different levels of P-J index, it is found that TC activities could stimulate the increase of P-J teleconnection index. There was a significant positive correlation between them, which was accompanied by a step effect.