生物质燃烧对中国东北地区CO浓度的影响研究  

The Study of the Effects on Carbon Monoxide in Northeast China from Biomass Burning

作　　者：王甜甜[1,2] 陈良富[1] 陶金花[1] 苏林[1] 张莹[1] 汪洋[1,2] 

机构地区：[1]中国科学院遥感与数字地球研究所遥感科学国家重点实验室,北京100101 [2]中国科学院大学,北京100049

出　　处：《遥感技术与应用》2016年第2期297-306,共10页Remote Sensing Technology and Application

基　　金：国家重点基金项目"卫星遥感反演CO2误差分析和低层大气CO2模拟"(41130528);中国科学院战略性先导科技专项"中红外卫星遥感反演温室气体"(XDA05040204);浙江省重大科技专项项目"浙江省大气复合污染遥感监测关键技术和应用系统建设"(2012C13011-2)

摘　　要：利用Aqua卫星上AIRS传感器的近地表和500hPa气压层高度的CO数据,研究了中国东北地区2012年CO时空分布特征及其变化趋势,并结合MODIS火点资料以及NCEP/NCAR的风场资料,分析了当地的生物质燃烧以及周边国家和地区CO远距离输送对研究区CO浓度的影响。研究结果表明：近地表CO浓度高值出现在冬季和春季,低值出现在夏季和秋季,2011～2013年连续3a的CO浓度与火点数的相关关系均在0.52左右,显著相关。此外,CO的分布还与当地的供暖时间、人口密度和工业分布有关：CO的高值时间与中国东北地区冬季供暖时间基本一致,人口和工业集中地区的CO浓度偏高,人口稀少的内蒙古草原CO浓度值偏低;根据NECP/NCAR的风场资料,中国东北地区500hPa气压层高度全年受来自西伯利亚和蒙古国的西北风影响,东北地区,尤其是内蒙古自治区,西伯利亚和蒙古国常年有大量火点,在500hPa气压层高度的CO浓度受西伯利亚和蒙古国的影响。生物质燃烧能够反映农作物收获时间,CO浓度的时空变化规律也能在一定程度上反映我国农作物的时空分布特征,具有重要的研究意义。With carbon monoxide data on surface and 500 hPa pressure surface in 2012 from Atmospheric Infrared Sounder（AIRS） observation,the spatial and temporal distribution of carbon monoxide in northeast China was investigated.The effects of domestic biomass burning and carbon monoxide advection from sur- rounding countries and regions on carbon monoxide in northeast of China were analyzed with fire data of MODIS integrated from Terra and Aqua and meteorological data from NCEP/NCAR. Results showed that carbon monoxide volume mixing ratio at surface was heavy during winter and spring, and was light in sum- mer and autumn due to domestic Warm Supply,the seasonal differences of OH free radicals concentration, population density and industrial distribution.Carbon monoxide volume mixing ratio was heavy in the re- gions with high population density and industrial concentration district and vice versa.Meteorological data from NCEP/NCAR showed that there existed a transport path from Siberia and Mongolia towards north east of China during most of months.Biomass burning could reflect the harvest time of crops and therefore the spatial and temporal distribution of crops could be reflected by the distribution of carbon monoxide.In this paper,we studied the effects from biomass burning on carbon monoxide concentration in northeast of China, which would be of great significance for environmental management.

关 键 词：生物质燃烧 CO 火点 AIRS 时空分布 

分 类 号：P407[天文地球—大气科学及气象学]