CO 2 和CH 4 时空变化的GOSAT监测研究

发布时间：2024-03-24 04:09

　　温室气体(GHGs)对评估生物化学环境是一个有力的信息。在全球变暖这一背景下,大气中温室气体的聚散成为观测气候变化的关键,尤其是温室气体对全球温度的上升影响重大。大气中的二氧化碳(CO₂)和甲烷(CH₄)是主要的温室气体组成部分,而这两种气体的增加与人类活动息息相关。使用皮尔逊相关性模型,对GOSAT数据与东北部的龙凤山(LFS)和西北部的瓦利关(WLG)站点数据做相关性分析,以求得到卫星数据和地面站点之间的关系。结果发现,在研究区东北部,不论是CO₂还是CH₄的监测结果,GOSAT和LFS站点数据都具有很强的相关性(r=0.92671,r=0.93905)。而在研究区的西北部也是如此,即GOSAT和WLG站点对于CO₂和CH₄的监测数据都有很强的相关性(r=0.93794,r=0.92413)。用温室气体观测卫星(GOSAT)的数据,研究了2010-2018年两种主要温室气体(CO₂和CH₄)浓度的时空变化特征...

【文章页数】：88 页

【学位级别】：硕士

【文章目录】：
摘要
Abstract
Abbreviations
Chapter1 Introduction
    1.1 Background
    1.2 Greenhouse gases
        1.2.1 CO₂ concentration,cycle and emissions by sector
        1.2.2 CO₂ concentration,cycle and emissions by sector
        1.2.3 CO₂,CH₄ emission pathways
        1.2.4 Emission of CO₂ and CH₄ across different scale
    1.3 Source of GHGs in China
    1.4 CO₂ and CH₄ dynamics
    1.5 CO₂and CH₄ concentration in different scenarios
    1.6 Aim of the research
Chapter 2 Data and methods
    2.1 Study area
        2.1.1 CO₂distribution in China
        2.1.2 CH₄distribution in China
    2.2 Data
        2.2.1 Greenhouse gas observation of GOSAT satellite
        2.2.2 XCO2 level 3
        2.2.3 XCH4 level 3
        2.2.4 Ground station data
    2.3 Data processing scheme
Chapter3 Spatiotemporal variation of CO2 and CH4
    3.1 Validation of GOSAT data
        3.1.1 Northeastern region
        3.1.2 Northwestern region
    3.2 Monthly variation
        3.2.1 Northeastern region
        3.2.2 Northwestern region
    3.3 Seasonal variation
        3.3.1 Northeastern region
        3.3.2 Northwestern region
    3.4 Annual variation
        3.4.1 Northeastern region
        3.4.2 Northwestern region
Chapter 4 Reasons for variation of CO2 and CH4
    4.1 Reasons for variation of CO₂ and CH₄in Northeastern China
    4.2 Reasons for variation of CO₂ and CH₄in Northeastern China
    4.3 Impact of GHGs on climate change
Chapter5 Conclusion and outlook
    5.1 Conclusion
    5.2 Outlook
References
Acknowledgment



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