河北省中南部二氧化碳浓度的飞机探测研究  

Airborne observation of carbon dioxide concentration in central and southern Hebei Province

作　　者：谢文琪 姚波 吴国明[5] 董航宇 麦榕 许林 XIE Wen-qi;YAO Bo;WU Guo-ming;DONG Hang-yu;MAI Rong;XU Lin(Jiangxi Agricultural Meteorology Center,Nanchang 330096,China;Nanchang County Meteorological Bureau,Nanchang 330200,China;Department of Atmospheric and Oceanic Sciences&Institute of Atmospheric Sciences,Fudan University,Shanghai 200438,China;Meteorological Observation Centre of China Meteorological Administration,Beijing 100081,China;Hebei Institute of Meteorological Sciences,Shijiazhuang 050020,China;Weather Modification Center of Hebei Province,Shijiazhuang 050020,China;Beijing Honglin Universe Technology Co.,Ltd.,Beijing 100041,China)

机构地区：[1]江西省农业气象中心,江西南昌330096 [2]南昌县气象局,江西南昌330200 [3]复旦大学大气与海洋科学系/大气科学研究院,上海200438 [4]中国气象局气象探测中心,北京100081 [5]河北省气象科学研究所,河北石家庄050020 [6]河北省人工影响天气中心,河北石家庄050020 [7]北京鸿霖宇天科技有限公司,北京100041

出　　处：《中国环境科学》2023年第2期525-531,共7页China Environmental Science

基　　金：国家自然科学基金资助项目(41730103),科技部国家重点研发计划(2017YFB0504000)。

摘　　要：为探究河北省中南部CO_(2)时空分布特征,利用空中国王350飞机搭载高精度CO_(2)分析仪和相关辅助设备,对石家庄、邢台城市上空(600~5600m)CO_(2)浓度进行飞机探测,探测期间共飞行4架次,取得7组CO_(2)浓度垂直廓线数据,探测期间CO_(2)浓度最小值为398.3×10^(-6),最大值为414.6×10^(-6),多架次垂直方向上平均浓度为(401.4~403.9)×10^(-6).CO_(2)浓度随高度的增加,无明显规律性变化.边界层顶位于1000~2000m左右高度,在边界层顶以下受近地面排放源的影响较大.2500m高度上,其浓度随高度变化均存在一个短暂减小的趋势,高空基本不受近地面污染源的影响,CO_(2)浓度接近地面本底浓度.在同一高度上,白天CO_(2)浓度均略高于夜间.夜间CO_(2)在混合层聚集,混合层顶浓度达最大.邢台上空的CO_(2)与CH_(4)的浓度显著相关,相关系数r≥0.90,表明邢台CO_(2)与CH_(4)可能具有相同的源.CO_(2)concentrations above Shijiazhuang and Xingtai(600~5600m)were detected by CO_(2)analyzer and related auxiliary equipment on an airborne observation platform of King-air 350 to characterize the spatial and temporal distribution of tropospheric CO_(2)in central and southern Hebei Province.7CO_(2)concentration vertical profiles were achieved through 4flights.The minimum and maximum of CO_(2)concentrations during the observation period were 398.3×10^(-6)and 414.6×10^(-6),respectively,while the averaged CO_(2)concentrations of each flight varied from 401.4×10^(-6)to 403.9×10^(-6).There is no consistent pattern of CO_(2)concentration trends with the increase of altitude.The boundary layer heights during the observation period were about 1000~2000m.The CO_(2)concentration varied significantly below 1000m due to the influence of near-surface emission sources.However,CO_(2)concentrations generally had a short-term decreasing trend over the height of 2500m,and was close to the background concentrations at higher levels.The CO_(2)concentrations over Xingtai was significantly correlated with CH_(4)concentrations,with the correlation coefficient r≥0.90,which indicated that the enhanced CO_(2)and CH_(4)concentrations at Xingtai might come from the same source.

关 键 词：CO_(2)浓度 飞机观测 垂直廓线 石家庄 邢台 

分 类 号：X511[环境科学与工程—环境工程]