Impacts of Agricultural Fire on Aerosol Distribution over East China During Summer Harvest Time

Abstract

Abstract:

The Moderate Resolution Imaging Spectroradiometer (MODIS) level 2 aerosol products (2001–2009) were used to study aerosol spatial and temporal distributions in Jun, as well as their variations with surface wind over East China. The results of case and statistical studies indicate that fire pixels almost dominate the whole northern Anhui and Jiangsu Provinces (32°N -35°N) in Jun. It is found that fire pixel count is quite large in June and clearly matches the high aerosol optical depth (AOD) loads during the burning month. These suggest that agricultural biomass burning occurs seriously in June, which leads to appearance of AOD peak values over East China. Moreover, the distribution feature of aerosol over East China has been proved mainly depending on topography and anthropogenic activities. The variabilities of visibility, days of haze and AOD in Anhui Province demonstrated that the agricultural biomass burning aerosols can also be transported into East China from the surrounding rural area in June. The spatial-temporal variabilities of AOD in Jun over East China are closely related to those of surface wind. On one hand, strong wind is favor for the diffusion of the pollutants, which leads to the relatively lower AOD loads. On the other hand, still wind process by which formation of airflow stagnation area can induce that the pollutants accumulate much easily, which leads to the relatively higher AOD loads.

Key words: aerosol, MODIS, East China, agricultural fire, haze

CLC Number:

P401

YANG Yuan-Jian, FU Yun-Fei, WU Bi-Wen, SHI Chun-E, DENG Xue-Liang, ZHANG Hao, ZHANG Ying. Impacts of Agricultural Fire on Aerosol Distribution over East China During Summer Harvest Time[J]. Journal of Atmospheric and Environmental Optics, 2013, 8(4): 241-252.

References

[1] Albrecht B A. Aerosols, cloud microphysics, and fractional cloudiness [J]. Science, 1989, 245(4923): 1227-1230.
[2] Ferek R J, Hegg D A, Hobbs P V, et al. Measurements of ship-induced tracks in clouds off the Washington coast [J]. J. Geophys. Res., 1998, 103(D18): 23199-23206.
[3] Rosenfeld D, Dai J, Yu X, et al. Inverse relations between amounts of air pollution and orographic precipitation [J]. Science, 2007, 315(5817): 1396-1398
[4] Duan Jing, Mao Jietai. Influence of aerosol on regional precipitation in North China [J]. Chinese Science Bulletin, 2009, 54 (3): 474-483(in Chinese).
段婧, 毛节泰. 华北地区气溶胶对区域降水的影响 [J]. 科学通报, 2008, 53(23): 2947-2955.
[5] Song Yao, Ma Jinji. Estimation of aerosol direct radiative forcing in Beijing area using MODIS data [J]. Journal of Atmospheric and Environmental Optics, 2012, 7(6): 445-451(in Chinese).
宋姚, 麻金继. 利用MODIS数据计算北京地区的气溶胶直接辐射强迫 [J]. 大气与环境光学学报, 2012, 7(6): 445-451.
[6] Wang Yi. The development of atmospheric aerosol investigation by earth observation system [J]. Remote Sensing Technology and Application, 2006, 21(6): 584-592(in Chinese).
王毅. 国际新一代对地观测系统在气溶胶遥感方面的应用 [J]. 遥感技术与应用, 2006, 21(6): 584-592.
[7] Shao Pei, Ma Jinji, Hong Chao. Spatial-temporal features of aerosol optical thickness on polarization information in Beijing area [J]. Journal of Atmospheric and Environmental Optics, 2012, 7(2): 108-115(in Chinese).
邵培, 麻金继, 洪超. 基于偏振数据反演北京市的气溶胶光学厚度及其时空特征的研究 [J]. 大气与环境光学学报, 2012, 7(2): 108-115.
[8] Liu Zhaoliang, Ma Jinji. Retrieval of aerosol optical thickness over bright surface areas using MODIS data [J]. Journal of Atmospheric and Environmental Optics, 2012, 7(5): 358-363(in Chinese).
刘兆亮, 麻金继. 基于MODIS数据反演高反射率地区气溶胶光学厚度的方法研究 [J].大气与环境光学学报, 2012, 7(5): 358-363.
[9] Liu Guiqing, Mao Jietai, Li Chengcai. Optical depth research of atmospheric aerosol in the Yangtze River Delta Region [J]. Shanghai Environmental Sciences, 2003, (S2): 58-63(in Chinese).
刘桂青, 毛节泰, 李成才. 长江三角洲地区大气气溶胶光学厚度研究 [J]. 上海环境科学, 2003, (S2): 58-63.
[10] Li Chengcai, Mao Jietai, Liu Qihan. Characteristics of the spatial distribution and seasonal variation of aerosol optical depth over China using MODIS data [J]. Chinese Science Bulletin, 2003, 48(19): 2094-2100(in Chinese).
李成才, 毛节泰, 刘启汉，等. 利用MODIS研究中国东部地区气溶胶光学厚度的分布和季节变化特征 [J]. 科学通报, 2003, 48(19): 2094-2100.
[11] Sun Juan, Shu Jiong, Lu Xiaoqin, et al. Application of aerosol optical depth data from MODIS to retrieval visibility [J]. Environmental Science and Management, 2006, 31(5): 96-101(in Chinese).
孙娟, 束炯, 鲁小琴, 等. MODIS 遥感气溶胶光学厚度产品在地面能见距中的应用 [J]. 环境科学与管理, 2006, 31(5): 96-101.
[12] Wang Yu, Fu Yunfei. Comparison on aerosol properties between central and East China and Indian Subcontinent by using MODIS products [J]. Climatic and Environmental Research, 2007, 12(2): 137-146(in Chinese).
王雨, 傅云飞. 利用MODIS卫星资料对中国中东部和印度次大陆地区气溶胶特性的分析 [J]. 气候与环境研究, 2007, 12(2): 137-146.
[13] Deng Xueliang, Deng Weitao, He Dongyan. Spatial-temporal features of atmospheric aerosol in East China in recent years [J]. Transactions of Atmospheric Sciences, 2010, 33(3): 347-354(in Chinese).
邓学良, 邓伟涛, 何冬燕. 近年来华东地区大气气溶胶的时空特征 [J]. 大气科学学报, 2010, 33(3) : 347-354.
[14] Cai Hongke, Zhou Renjun, Fu Yunfei, et al. Aerosol lidar with orthogonal polarization detection of aerosol optical properties after a crop burning case [J]. Climatic and Environmental Research, 2011, 16(4): 469-478(in Chinese),.
蔡宏珂, 周任君, 傅云飞, 等. CALIOP对一次秸秆焚烧后气溶胶光学特征的探测分析 [J]. 气候与环境研究, 2011, 16(4): 469-478.
[15] He Q S, Li C C, Geng F H, et al. Study on long-term aerosol distribution over the land of East China using MODIS data [J]. Aerosol Air Qual. Res., 2012, 12: 304-319.
[16] Li H Y, Han Z W, Cheng T T, et al. Agricultural fire impacts on the air quality of Shanghai during summer harvest time [J]. Aerosol Air Qual. Res., 2010, 10(2): 95-101.
[17] Wu Dui, Liao Guolian, Deng Xue jiao, et al. Transport condition of surface layer under haze weather over the Pearl River Delta [J]. Journal of Applied Meterological Science, 2008, 19(1): 1-9(in Chinese).
吴兑, 廖国莲, 邓雪娇, 等. 珠江三角洲霾天气的近地层输送条件研究 [J]. 应用气象学报, 2008, 19(1): 1-9.