温室气体通量测量方法及进展  

Measurement Methods and Progress of Greenhouse Gas Flux

作　　者：岳斌 余赛芬 董晶晶 魏天问 袁金龙 章振 唐大为 夏海云[1,2] Yue Bin;Yu Saifen;Dong Jingjing;Wei Tianwen;Yuan Jinlong;Zhang Zhen;Tang Dawei;Xia Haiyun(School of Earth and Space Sciences,University of Science and Technology of China,Hefei 230026,Anhui,China;School of Atmospheric Physics,Nanjing University of Information Science&Technology,Nanjing 210044,Jiangsu,China)

机构地区：[1]中国科学技术大学地球和空间科学学院,安徽合肥230026 [2]南京信息工程大学大气物理学院,江苏南京210044

出　　处：《光学学报》2023年第18期82-94,共13页Acta Optica Sinica

摘　　要：分析了国内外主要的温室气体通量测量方法,包括针对地球生态系统通量的测量方法和针对人为排放通量的测量方法。梳理了地基原位通量测量网络、地基和星载被动遥感技术和以激光雷达为代表的主动遥感技术的研究现状与进展,分析了当前测量技术对人为碳排放的探测能力。结合国内外发展趋势,展望了为满足全球和区域人为碳排放监测的需求,需要同化原位探测与主动遥感探测数据、通过科学的卫星组网提高时空分辨率并建立不同尺度的模型。Significancee Anthropogenic greenhouse gas emissions represented by carbon dioxide and methane are an important driving force of global warming in the last century.The key to controlling global warming is to control greenhouse gas emissions.Carbon dioxide is an important greenhouse gas.Research and development of scientific carbon dioxide emission monitoring technology and scientific identification of regional carbon dioxide emission and absorption are of great significance to serving our country's carbon emission policies at different stages.Progress Traditional inventory methods calculate the total carbon emissions by counting the energy consumed by each emission source.Since statistics and emission factors cannot be updated quickly,it is difficult for these methods to capture the dynamic changes in emission sources.Flux data based on concentration measurement is updated frequently,and the measurement data is objective,which can provide a more accurate basis for greenhouse gas emissions and traceability.In recent decades,various methods have been proposed to measure fluxes based on concentration measurement.The measurement methods for the terrestrial biosphere flux include the chamber method,micrometeorology method,equilibrium boundary layer concepts,and inverse system for space-borne platforms.The measurement methods for the point sources flux contain the inverse diffusion technology represented by the Gaussian plume model,source pixel method,cross-sectional flux method,integrated mass enhancement method,Gaussian vector integral method,and horizontal net flux measurement method.The ground-based in-situ measurement technology represented by the flux tower features high measurement accuracy and strong time continuity and plays a vital role in the flux detection of forests,farmland,and other earth ecosystems.However,since the measurement area of the flux tower usually does not exceed 1 km²,it is difficult to quantitatively understand the sources and sinks of greenhouse gases on a global scale due to the sparsene

关 键 词：遥感 温室气体通量 生态系统通量 人为排放 

分 类 号：O436[机械工程—光学工程]