在山西省 (2013-2022) 的大气CO2波动的时空空间评估,利用多源卫星遥感数据
1College of Information Engineering, Northwest A&F University, No.22, Xinong Road, Yangling, Shaanxi, 712100, China.
Carbon balance and management
|October 8, 2025
概括
中国西省的二氧化碳 (CO2) 含量显示出明显的季节性模式,以及从2013年到2022年的持续上升趋势. 卫星和地面数据显示,二氧化碳度在过去十年增加了4.12%.
科学领域:
- 大气科学 大气科学
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
背景情况:
- 全球大气中的二氧化碳 (CO2) 水平正因化石燃料使用和工业化而上升.
- 区域二氧化碳变化,特别是像中国西省这样的发展中地区,并没有得到很好的描述.
- 山西省经历了快速发展,需要了解其二氧化碳动态.
研究的目的:
- 研究2013年至2022年西省二氧化碳的时空分布和驱动因素.
- 综合卫星和地面数据,对区域二氧化碳变化进行全面分析.
- 为了澄清中国一个快速发展的地区的二氧化碳趋势.
主要方法:
- 综合卫星遥感 (RS) 数据来自轨道碳观测站-2 (OCO-2) 和福里埃变换谱仪 (FTS).
- 利用了来自世界温室气体数据中心 (WDCGG) 香港站的地面二氧化碳测量.
- 从2013年到2022年分析了年内,年间和空间二氧化碳变化.
主要成果:
- 观察到明显的季节性二氧化碳循环,度在4月达到峰值 (407.48 ppm),并在8月达到最低 (399.68 ppm).
- 从2013年 (396ppm) 到2022年 (412.34ppm),西地区的年平均二氧化碳度增加了4.12%.
- 较高的二氧化碳水平集中在山西南部,年平均值在2022年达到418.4ppm,增长率在南部更高.
结论:
- 西省表现出明显的时空二氧化碳变化,其特点是显著的季节周期和过去十年的明显上升趋势.
- 该研究提供了对快速发展的中国省份二氧化碳特征和动态的关键见解.
- 需要进行进一步的研究,以确定导致西地区观察到的二氧化碳变化的具体因素.
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