Climate Change Research ›› 2019, Vol. 15 ›› Issue (2): 107-118.doi: 10.12006/j.issn.1673-1719.2018.116

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Analysis of climate characteristics of tropical cyclone activities simulated by the NUIST Earth system model

Qi-Meng WU,Li-Guang WU(),Jian CAO   

  1. Nanjing University of Information Science &Technology, Nanjing 210044, China
  • Received:2018-08-21 Revised:2018-11-13 Online:2019-03-30 Published:2019-03-30


By using the NUIST Earth system model v1 (NESM v1) with a constant external forcing, 40-year global tropical cyclone activities were simulated, and the simulation data were compared with the observations (1977-2016). The results show that NESM v1 can simulate vortex structure similar to tropical cyclones in the area where tropical cyclones are active, The spatial distribution and impact range of simulated tropical cyclones are basically consistent with the observations, but the numbers of tropical cyclones in various areas are different from the observations. In addition to North Indian Ocean, the numbers of tropical cyclones in different seasons are similar to the observations. The model has the best simulation in the Northwest Pacific Ocean, it can simulate the formation area and prevailing path of tropical cyclones. The simulation results in the North Indian Ocean are poor. NESM model simulates relative vorticity different from observation, so it cannot simulate the bimodal characteristic in North Indian.

Key words: Tropical cyclone, Activity characteristic, NUIST Earth system model (NESM), Large-scale environmental field

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