主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

Journal of Meteorology and Environment ›› 2024, Vol. 40 ›› Issue (3): 138-144.doi: 10.3969/j.issn.1673-503X.2024.03.017

• Bulletins • Previous Articles    

Impact of aerosol on rainy season precipitation in Xizang Plateau based on machine learning method

Ciren DAWA1(),Zhui LUO1,Yihang HONG2,Zhuoga CIREN1   

  1. 1. Lazi County Meteorological Service, Shigatse 858100, China
    2. Nanjing University of Information Science & Technology, Nanjing 210044, China
  • Received:2023-01-31 Online:2024-06-28 Published:2024-08-09

Abstract:

Using the precipitation data from 2001 to 2021 and the data of atmospheric pollutants such as PM2.5, sulfate and nitrate, we chose Lazi as the study area and use the machine learning (ML) method to decipher the complex relationship between precipitation and its influencing factors. After that, the contribution of each input variable to the precipitation in was is quantified by this ML method. The results indicate that the dew point temperature is the most crucial elements affecting the precipitation in Lazi, contributing 74% to precipitation in rainy season and 66% to precipitation in non-rainy season. Among aerosol components, nitrate shows the greatest influence on precipitation, accounting for 61% and 71% to the precipitation in rainy and non-rainy seasons, respectively. This result means that nitrate aerosols play an important role in precipitation.

Key words: High altitude region, Precipitation mechanism, Machine learning algorithm

CLC Number: