Scholarlink

The study was conducted to monitor changes in atmospheric NO2 gas during the period 2019–2022 using Sentinel-5P TROPOMI satellite data on the Google Earth Engine (GEE) platform. The concentration of NO2 was extracted directly from the tropospheric column number density channel (mol/m2) with L3 processing level from Sentinel-5P TROPOMI image data. Research results show that average monthly NO2 concentrations range from 29.67 to 133.33 μmol/m2 and from 39.34 to 78.75 μmol/m2 with annual average values in the period 2019–2022. Areas with high NO2 concentrations are concentrated on traffic routes, industrial zones, and urban areas. Comparing the correlation between data extracted from Sentinel-5P satellite images and field observation data shows that there is a correlation between the data with R2 = 0.69 and r = 0.83. The research results provide an overview of gas concentrations in the lower atmosphere in the Mekong Delta.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Monitoring Air Quality in the Vietnamese Mekong Delta Using Sentinel-5P TROPOMI Satellite

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Nguyen Thi Hong Diep,
  • Nguyen Trong Nguyen,
  • Tran Phuong Thao Lam,
  • Nguyen Thi Thanh Huong

摘要

The study was conducted to monitor changes in atmospheric NO2 gas during the period 2019–2022 using Sentinel-5P TROPOMI satellite data on the Google Earth Engine (GEE) platform. The concentration of NO2 was extracted directly from the tropospheric column number density channel (mol/m2) with L3 processing level from Sentinel-5P TROPOMI image data. Research results show that average monthly NO2 concentrations range from 29.67 to 133.33 μmol/m2 and from 39.34 to 78.75 μmol/m2 with annual average values in the period 2019–2022. Areas with high NO2 concentrations are concentrated on traffic routes, industrial zones, and urban areas. Comparing the correlation between data extracted from Sentinel-5P satellite images and field observation data shows that there is a correlation between the data with R2 = 0.69 and r = 0.83. The research results provide an overview of gas concentrations in the lower atmosphere in the Mekong Delta.