全球对流层中层二氧化碳柱浓度数据集(2003–2015)

Carbon Dioxide Column Data in the Mid-troposphere(2003–2015)

人类活动导致大气中温室气体浓度上升,是全球气候变暖的重要原因之一。基于美国Aqua卫星搭载的大气红外垂直遥感器(AtmosphericInfraredSounder,AIRS)数据反演的2003–2015年全球对流层中层CO2柱浓度资料,利用地基观测结果对其进行验证,并对其进行时空变化进行分析,得出《全球对流层中层二氧化碳柱浓度数据集(2003–2015)》。数据结果表明:北半球30°N–60°N是CO2浓度高值带,低值中心主要出现在15°S–15°N,140°W–100°E的低纬地区。地基观测与AIRS卫星反演结果基本一致,年增长率约为1.926mL/(m3·a)。该数据集包括:(1)2003–2015年全球对流层中层CO2柱浓度;(2)全球对流层中层CO2柱浓度年平均增长率;(3)2003年1月至2015年12月地基观测与AIRS反演结果对比。该数据集存储为.xlsx和.tif格式,数据量为292 KB(压缩为1个文件,246 KB)。该数据集的分析成果发表在《地球物理学报》2018年第61卷第11期。

The rise in the concentration of greenhouse gases induced by human activities is the major reason for global warming.Based on Atmospheric Infrared Sounder(ARIS)–retrieved CO2 column data in the mid-troposphere during 2003–2015,the spatiotemporal change in CO2 was analyzed using ground-based observations as the validation data.The results show a high-concentration belt distributed along 30°N–60°N in the Northern Hemisphere,while low values occur mainly in the lower latitudes of(15°S–15°N,140°W–100°E).There is agreement between the ground-based observations and the AIRS satellite data,and the annual rate of increase is approximately 1.926 m L/(m3·a).The datasets include:(1)the global CO2 column in the mid-troposphere during 2003–2015;(2)the annual growth rate of CO2;and(3)a comparison between the ground-based observations and AIRS-retrieved data.The datasets are stored in.xlsx and.tif format,and the volume is 292 KB(246 KB for one compressed file).The results have been published in Vol.61,No.11 of the Chinese Journal of Geophysics.