在COVID-19期间揭示城市空气质量动态:Sentinel-5P TROPOMI热点分析
Aneesh Mathew1, Padala Raja Shekar1, Abhilash T Nair2
1Department of Civil Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, 620015, India.
Scientific reports
|September 16, 2024
概括
卫星数据显示印度.
科学领域:
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
- 大气化学 大气化学
背景情况:
- 印度有限的地面空气质量监测站造成数据缺口.
- 卫星数据为全面的环境监测提供了可行的解决方案.
- 了解空气污染物分布对于公共卫生和环境保护至关重要.
研究的目的:
- 调查印度各地主要空气污染物 (SO2,NO2,CO,O3) 的空间和时间变化.
- 分析2019-2022年的空气质量趋势,包括COVID前,COVID-19封锁期间和当前时期.
- 确定污染热点及其与城市和工业活动的相关性.
主要方法:
- 利用Sentinel-5P TROPOMI卫星图像进行全面的空气质量分析.
- 在全国范围内进行了时空空间分析,重点关注五个主要的大都市.
- 对污染物度进行季节性,月度和年度评估,并确定污染热点.
主要成果:
- 冬季显示了污染物度最高的季节 (除了臭氧,在夏季达到峰值).
- 二氧化 (NO2) 热点集中在大城市,而二氧化硫 (SO2) 热点与工业区有关.
- 德里在NO2上升了20%,而科尔卡塔在2019-2022年期间SO2上升了11%;COVID-19封锁显著降低了NO2水平.
结论:
- 卫星数据为印度的空气污染动态和热点识别提供了关键的见解.
- 该研究强调了人类活动和封锁对空气质量的重大影响.
- 调查结果支持基于证据的政策制定,以有效地减轻空气污染和保护公共卫生.
关键词:
一氧化碳的一氧化碳.二氧化是二氧化的一种物质.臭氧臭氧是什么?臭氧臭氧是一种哨兵-5P 哨兵-5P 哨兵-5P 哨兵-5P 哨兵-5P二氧化硫二氧化硫的使用方法太极化 (TROPOMI) 是一个问题.更多相关视频
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