碳足迹:2015-2021年期间揭示全球集装箱船排放的时空动态
Hongchu Yu1, Qinglong Fang2, Zhixiang Fang3
1School of Navigation, Wuhan University of Technology, Wuhan 430063, China; Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya 572000, China.
Marine pollution bulletin
|October 19, 2024
概括
全球集装箱船二氧化碳 (CO2) 排放量从2016年到2020年减少,然后反弹. 排放集中在海岸线和主要航线上,突出了减排战略的关键领域.
科学领域:
- 海洋环境科学 海洋环境科学
- 减缓气候变化减缓气候变化减缓
- 地理信息系统 (GIS) 的分析分析.
背景情况:
- 全球航运对贸易至关重要,减少二氧化碳 (CO2) 排放成为优先事项.
- 国际"碳峰值"和"碳中和"目标强调需要有效的海上排放战略.
研究的目的:
- 估计和分析2015年至2021年全球集装箱船二氧化碳排放的时空分布.
- 确定集装箱航运行业的排放趋势,空间模式和排放热点.
- 为开发可持续的海上航运实践提供数据驱动的见解.
主要方法:
- 使用自动识别系统 (AIS) 轨迹数据从2015-2021年.
- 采用了自下而上的方法来估计1°×1°网格上的二氧化碳排放量.
- 进行空间自相关分析以确定排放热点和模式.
主要成果:
- 全球集装箱运输的二氧化碳排放量从2016年的2.17亿减少到2020年的1.48亿,在2021年增加到1.68亿.
- 二氧化碳排放具有显著的空间异质性,具有强大的空间依赖性和聚合性.
- 峰值排放集群集中在海岸线和主要的全球航线上.
结论:
- 集装箱运输的二氧化碳排放显示出波动的趋势,在研究期间下降,然后增加.
- 排放的空间分布不均,明显的热点需要有针对性的缓解努力.
- 高分辨率的时空分析为可持续海运的知情决策提供了关键数据.
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