A satellite data based detailed study of the aerosol emitted from open biomass burning in northeast china

Shi，Shuaiyi1; Ma，Yanjun2; Bao，Fangwen3; Mumtaz，Faisal1

2021-12-01

10.3390/atmos12121700

Atmosphere   影响因子和分区

2073-4433

Due to its unique natural conditions and agricultural tradition, northeast China (NEC) has formed a distinctive open biomass burning habit with local-specific biomass burning aerosol features. In this research, with the help of a newly optimized biomass burning aerosol identification method, which combines satellite aerosol and fire observational products with the HYSPLIT model forward trajectories, a systematic and quantitative analysis of aerosol emitted from open biomass burning in the NEC region are conducted to determine in detail its local-specific features, such as influence region, aging characteristics, and seasonal variation. During the 72-h aging process after biomass burning emission, aerosol particle size growth found with the Angstrom exponent declines from 1.6 to 1.54. Additionally, the volume fraction of black carbon decreases from 4.5% to 3.1%, leading to the Single Scattering Albedo (SSA) increasing from the fresh state of 0.84 to the aged state of 0.89. The cooling effect at TOA, due to the existence of aerosol, is enhanced by more than 70%, indicating its severe and dynamic influence on climate change. The average AOD in spring is 0.63, which is higher than autumn’s value of 0.52, indicating that biomass burning is more intensive in spring. Compared to autumn, aerosols emitted from spring biomass burning in the NEC region have lower sphere fraction, smaller particle size, higher volume fraction of black carbon, higher absorbability, and weaker cooling effect at TOA, which can be partly explained by the drier ambient environment and lower water content of the burned crop straw in spring.

Aerosol aging HYSPLIT Influence region Northeast China Open biomass burning aerosol POLDER/PARASOL Seasonal variation

SCI ; EI

英语

其他

National Natural Science Foundation of China[42005104];National Natural Science Foundation of China[42105124];

WOS:000735743700001

20220111421108

Biomass ; Carbon ; Climate change ; Particle size ; Particle size analysis ; Volume fraction

Atmospheric Properties:443.1 ; Thermodynamics:641.1 ; Chemical Products Generally:804 ; Materials Science:951

2-s2.0-85122010012

Scopus

1.State Key Laboratory of Remote Sensing Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing,100094,China
2.Institute of Atmospheric Environment,China Meteorological Administration,Shenyang,110166,China
3.Department of Earth and Space Sciences,Southern University of Science and Technology,Shenzhen,518055,China

Shi，Shuaiyi,Ma，Yanjun,Bao，Fangwen,et al. A satellite data based detailed study of the aerosol emitted from open biomass burning in northeast china[J]. Atmosphere,2021,12(12).

Shi，Shuaiyi,Ma，Yanjun,Bao，Fangwen,&Mumtaz，Faisal.(2021).A satellite data based detailed study of the aerosol emitted from open biomass burning in northeast china.Atmosphere,12(12).

Shi，Shuaiyi,et al."A satellite data based detailed study of the aerosol emitted from open biomass burning in northeast china".Atmosphere 12.12(2021).