Effects of Spring Biomass Burning in the Indochina Peninsula on May Precipitation in South China
Effects of Spring Biomass Burning in the Indochina Peninsula on May Precipitation in South China作者机构：School of Atmospheric Sciences Nanjing University of Information Science and Technology Nanjing China
出 版 物：《Journal of Water Resource and Protection》 (水资源与保护（英文）)
年 卷 期：2023年第15卷第5期
页 面：179-193页
学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）]
主 题：Indo-China Peninsula Biomass-Burning Aerosols Atmospheric Circulation Precipitation
摘 要：Each year, during the dry season that precedes the summer wind and rainfall Indo-China Peninsula (ICP), significant biomass burning occurs and reaches its peak from March to April. This biomass burning generates large amounts of aerosols that impact East Asia and surrounding areas through the Asian monsoon. This study aims to investigate the potential connection between biomass burning over the ICP and precipitation in South China during May, along with the physical processes involved. The analysis is based on GLDAS soil moisture reanalysis data and CPC (NOAA) precipitation data covering the period from 1980 to 2021. The research findings indicate a negative (positive) correlation between biomass burning in the ICP region during spring and precipitation in the same region (South China) during May. The circulation patterns corresponding to years with biomass-burning emission anomalies are further investigated, and the impact of biomass-burning emissions in spring on soil moisture and temperature is examined. The results suggest that biomass-burning emissions can significantly affect atmospheric circulation and precipitation, ultimately leading to anomalous precipitation in South China.
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