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通过使用大气反转来验证和改进中国CO2和CH4预算的估计

Yilong Wang¹, Yuzhong Zhang^2,3, Xiangjun Tian^1,4

¹State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China.

National science review

|May 21, 2025

概括

大气逆转估计中国

科学领域:

地球和环境科学地球和环境科学
大气科学大气科学
气候变化研究气候变化研究

背景情况:

大气逆转对于估计国家温室气体 (GHG) 流量至关重要.
在全球范围内,中国的二氧化碳和CH4排放量显著.
准确的流量估计对于气候政策和核查至关重要.

研究的目的:

审查大气逆变的应用,以估计中国的二氧化碳和CH4流量.
将基于反转的估计与中国国家温室气体库存 (NGHGI) 报告进行比较.
确定中国当前逆转方法的局限性和不确定性.

主要方法:

对大气逆转技术的基本原则和方法的审查.
综合了最近关于中国使用大气逆转的二氧化碳和CH4预算的研究.
逆流估计与NGHGI数据的比较.

主要成果:

对中国二氧化碳排放的反向估计:8.35 ± 1.39 Pg CO2 a-1.1.
在过去十年中,中国的CH4排放量倒数估计为60.8 ± 5.9 Tg CH4 a−1.
倒置估计通常与NGHGI一致,但存在显著的空间和时间不确定性.

结论:

大气逆转为中国的温室气体排放提供了宝贵的见解.
空间/时间分类中的不确定性限制验证和库存改进.
建议包括加强观测网络,模型相互比较和完善反转方法.

关键词:

中国中国中国中国.大气的反转是大气的反转.二氧化碳是二氧化碳的一种.温室气体的温室气体是什么甲是一种甲.

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