计量学报2025，Vol.46Issue(12)：1746-1754,9.DOI:10.3969/j.issn.1000-1158.2025.12.06
长三角城市大气温室气体时空变化及来源
Spatio-temporal Variation and Sources of Atmospheric Greenhouse Gases in Yangtze River Delta Cities
摘要
Abstract
A portable TY2002-GHG greenhouse gas detector,integrated with UAV and vehicle-mounted platforms,was employed to characterize the spatiotemporal distribution and sources of atmospheric greenhouse gases in a Yangtze River Delta city.TY2002-GHG measurements agreed closely with those of a commercial analyzer(Picarro G2401)(R²>0.92),demonstrating its suitability forfield observation in conjunction with drones.UAV vertical profiles showed a rapid CO₂decrease of 20 μmol/mol from the surface to 300 m,followed by a more gradual decline above 500 m.Occasional CO₂enhancements were observed within the 300-400 m layer.Pronounced seasonal variability was evident,particularly in spring and summer,with amplitudes up to(26.3±7.4)μmol/mol.CH₄ exhibited a surface-enhanced vertical structure,with early-morning peaks and midday minima driven by boundary-layer evolution and meteorological conditions.Vehicle-based surveys indicated that urban CO₂ and CH₄ levels were strongly modulated by traffic intensity,population density,and human activities.During peak hours,CO₂ concentrations along major roadways reached 510 μmol/mol,while CH₄mixing ratios in restaurant-dense areas reached 4.6 μmol/mol due to natural gas leakage.关键词
温室气体/便携式温室气体检测仪/无人机监测/车载监测/二氧化碳/甲烷Key words
greenhouse gases/portable greenhouse gas detector/unmanned aerial vehicle monitoring/vehicle monitoring/CO2/CH4分类
通用工业技术引用本文复制引用
黄日垟,吴海,邢波,吴振涛,庞小兵,黄燕..长三角城市大气温室气体时空变化及来源[J].计量学报,2025,46(12):1746-1754,9.基金项目
国家自然科学基金(42575194,42327806,42442506) （42575194,42327806,42442506）
浙江省"尖兵"研发攻关计划(2025C01055) （2025C01055）
湖州市公益性应用研究项目(2024 GZ50) （2024 GZ50）
