期刊
REMOTE SENSING
卷 15, 期 13, 页码 -出版社
MDPI
DOI: 10.3390/rs15133453
关键词
TROPOMI; nitrogen dioxide; maritime traffic monitoring; data processing; unsupervised learning
This article proposes an unsupervised clustering technique for monitoring shipping emissions based on NO2 concentration. The method is tested and validated using data from multiple regions and time periods, improving the spatial correlation coefficients between NO2 column clusters and shipping traffic frequency. Additionally, a temporal correlation is identified between NO2 column levels along shipping routes and the global container throughput index.
Stringent global regulations aim to reduce nitrogen dioxide (NO2) emissions from maritime shipping. However, the lack of a global monitoring system makes compliance verification challenging. To address this issue, we propose a systematic approach to monitor shipping emissions using unsupervised clustering techniques on spatio-temporal georeferenced data, specifically NO2 measurements obtained from the TROPOspheric Monitoring Instrument (TROPOMI) on board the Copernicus Sentinel-5 Precursor satellite. Our method involves partitioning spatio-temporally resolved measurements based on the similarity of NO2 column levels. We demonstrate the reproducibility of our approach through rigorous testing and validation using data collected from multiple regions and time periods. Our approach improves the spatial correlation coefficients between NO2 column clusters and shipping traffic frequency. Additionally, we identify a temporal correlation between NO2 column levels along shipping routes and the global container throughput index. We expect that our approach may serve as a prototype for a tool to identify anthropogenic maritime emissions, distinguishing them from background sources.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据