Construction and Application of a Regional Kilometer-Scale Carbon Source and Sink Assimilation Inversion System(CCMVS-R)  

作　　者：Lifeng Guo Xiaoye Zhang Junting Zhong Deying Wang Changhong Miao Licheng Zhao Zijiang Zhou Jie Liao Bo Hu Lingyun Zhu Yan Chen 

机构地区：[1]Monitoring and Assessment Center for GHGs and Carbon Neutrality&Key Laboratory of Atmospheric Chemistry of CMA,Chinese Academy of Meteorological Sciences,Beijing 100081,China [2]Laboratory of Climate Change Mitigation and Carbon Neutrality,Henan University,Zhengzhou 450001,China [3]National Meteorological Information Center,Beijing 100081,China [4]Shanxi Meteorological Administration,Taiyuan 030002,China [5]Shanxi Provincial Institute of Meteorological Sciences,Taiyuan 030002,China [6]Jiangsu Provincial Climate Center,Nanjing 210000,China

出　　处：《Engineering》2024年第2期263-275,共13页工程（英文）

基　　金：supported by the General Project of Top-Design of Multi-Scale Nature-Social Models;Data Support and Decision Support System for NSFC Carbon Neutrality Major Project(42341202);the Basic Scientific Research Fund of the Chinese Academy of Meteorological Sciences(2021Z014)。

摘　　要：CO_(2)is one of the most important greenhouse gases(GHGs)in the earth’s atmosphere.Since the industrial era,anthropogenic activities have emitted excessive quantities of GHGs into the atmosphere,resulting in climate warming since the 1950s and leading to an increased frequency of extreme weather and climate events.In 2020,China committed to striving for carbon neutrality by 2060.This commitment and China’s consequent actions will result in significant changes in global and regional anthropogenic carbon emissions and therefore require timely,comprehensive,and objective monitoring and verification support(MVS)systems.The MVS approach relies on the top-down assimilation and inversion of atmospheric CO_(2)concentrations,as recommended by the Intergovernmental Panel on Climate Change(IPCC)Inventory Guidelines in 2019.However,the regional high-resolution assimilation and inversion method is still in its initial stage of development.Here,we have constructed an inverse system for carbon sources and sinks at the kilometer level by coupling proper orthogonal decomposition(POD)with four-dimensional variational(4DVar)data assimilation based on the weather research and forecasting-greenhouse gas(WRF-GHG)model.Our China Carbon Monito ring and Verification Support at the Regional level(CCMVS-R)system can continuously assimilate information on atmospheric CO_(2)and other related information and realize the inversion of regional and local anthropogenic carbon emissions and natural terrestrial ecosystem carbon exchange.Atmospheric CO_(2)data were collected from six ground-based monito ring sites in Shanxi Province,China to verify the inversion effect of regio nal anthropogenic carbon emissions by setting ideal and real experiments using a two-layer nesting method(at 27 and 9 km).The uncertainty of the simulated atmospheric CO_(2)decreased significantly,with a root-mean-square error of CO_(2)concentration values between the ideal value and the simulated after assimilation was close to 0.The total anthropogenic carbon emissions

关 键 词：CCMVS-R Regional carbon assimilation system Anthropogenic carbon emissions CO_(2) POD 4DVar 

分 类 号：F426[经济管理—产业经济]