在日常规模上使用TROPOMI空间观测的多种类型的气溶的三维分布
Prem Maheshwarkar1, Juan Cuesta1, Paola Formenti2
1Univ Paris Est Créteil and Université Paris Cité, CNRS, LISA, F-94010 Créteil, France.
The Science of the total environment
|October 25, 2024
概括
新的卫星观测揭示了气溶的3D分布,包括烟雾和尘埃,使用AEROS5P方法. 这种方法增强了空间覆盖范围,并提供了对气溶传输和空气质量影响的见解.
科学领域:
- 大气科学 大气科学
- 遥感 遥感 遥感 遥感
- 环境监测 环境监测
背景情况:
- 基于卫星的气溶观测对于了解大气过程和空气质量至关重要.
- 以前的方法在气溶类型覆盖范围和空间范围方面存在局限性.
- 太空层臭氧监测仪 (TROPOMI) 提供高分辨率的光谱反射率数据.
研究的目的:
- 介绍一种基于卫星的增强方法 (AEROS5P),用于观察常见气溶类型的3D分布.
- 改进空间覆盖范围,并将喷雾剂垂直配置文件的检索泛化.
- 分析气溶运输模式及其对空气质量的影响.
主要方法:
- 使用TROPOMI测量和AEROS5P方法来检索垂直气溶灭绝概况.
- 整合可见红外成像放射仪套件 (VIIRS) 的气溶类型数据以先验定义气溶的特性.
- 将AEROS5P的结果与AErosol机器人网络 (AERONET) 和激光雷达观测结果进行验证.
主要成果:
- AEROS5P表现出与已建立的卫星和地面测量对气溶光学深度和垂直分布的良好一致.
- 成功追踪了来自加拿大野火和沙漠尘埃的烟雾的3D路径.
- 在西欧捕获了微型气溶污染物,在中国北部捕获了混合灰尘/气溶事件.
结论:
- AEROS5P方法提供了有价值的日常3D气溶观测,具有更好的覆盖范围和通用适用性.
- 这些观测为气溶运输,空气质量和潜在的辐射效应提供了关键的见解.
- 改进的方法支持更好地了解全球气溶动态和影响.
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