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High resolution mapping of PM2.5 concentration over Tehran city is challenging because of the complicated behavior of numerous sources of pollution and the insufficient number of ground air quality monitoring stations. Alternatively, high…

机器学习 · 计算机科学 2024-02-06 Hossein Bagheri

Satellite-based retrieval has become a popular PM2.5 monitoring method currently. To improve the retrieval performance, multiple variables are usually introduced as auxiliary variable in addition to aerosol optical depth (AOD). Different…

大气与海洋物理 · 物理学 2019-07-09 Qianqian Yang , Qiangqiang Yuan , Linwei Yue , Huanfeng Shen , Liangpei Zhang

Almost all remote sensing atmospheric PM2.5 estimation methods need satellite aerosol optical depth (AOD) products, which are often retrieved from top-of-atmosphere (TOA) reflectance via an atmospheric radiative transfer model. Then, is it…

大气与海洋物理 · 物理学 2019-02-28 Huanfeng Shen , Tongwen Li , Qiangqiang Yuan , Liangpei Zhang

Satellite-derived aerosol optical depth (AOD) has been increasingly employed for the estimation of ground-level PM2.5, which is often achieved by modeling the relationship between AOD and PM2.5. To evaluate the accuracy of PM2.5 estimation,…

大气与海洋物理 · 物理学 2018-12-04 Tongwen Li , Huanfeng Shen , Qiangqiang Yuan , Liangpei Zhang

Satellite aerosol products have been widely used to retrieve ground PM2.5 concentration because of its wide coverage and continuously spatial distribution. While more and more studies focus on the retrieval algorithm, we find that the…

地球物理 · 物理学 2018-08-20 Qianqian Yang , Qiangqiang Yuan , Linwei Yue , Tongwen Li , Huanfeng Shen , Liangpei Zhang

This paper investigates the possibility of high resolution mapping of PM2.5 concentration over Tehran city using high resolution satellite AOD (MAIAC) retrievals. For this purpose, a framework including three main stages, data…

机器学习 · 计算机科学 2022-04-06 Hossein Bagheri

Ambient fine particulate matter less than 2.5 $\mu$m in aerodynamic diameter (PM$_{2.5}$) has been linked to various adverse health outcomes and has, therefore, gained interest in public health. However, the sparsity of air quality monitors…

应用统计 · 统计学 2018-02-12 Nancy Murray , Howard H. Chang , Heather Holmes , Yang Liu

Aerosols play a critical role in atmospheric chemistry, and affect clouds, climate, and human health. However, the spatial coverage of satellite-derived aerosol optical depth (AOD) products is limited by cloud cover, orbit patterns, polar…

Atmospheric aerosols can cause serious damage to human health and life expectancy. Using the radiances observed by NASA's Multi-angle Imaging SpectroRadiometer (MISR), the current MISR operational algorithm retrieves Aerosol Optical Depth…

应用统计 · 统计学 2012-07-30 Yueqing Wang , Xin Jiang , Bin Yu , Ming Jiang

There has been growing interest in extending the coverage of ground PM2.5 monitoring networks based on satellite remote sensing data. With broad spatial and temporal coverage, satellite based monitoring network has a strong potential to…

应用统计 · 统计学 2018-09-14 Yikai Wang , Xuefei Hu , Howard Chang , Lance Waller , Jessica Belle , Yang Liu

Fine particulate matter (PM2.5) is associated with adverse human health effects, and China is currently suffering from serious PM2.5 pollution. To obtain spatially continuous ground-level PM2.5 concentrations, several models established by…

大气与海洋物理 · 物理学 2017-03-08 Tongwen Li , Huanfeng Shen , Chao Zeng , Qiangqiang Yuan , Liangpei Zhang

Aerosol Optical Depth (AOD) retrieval is essential for Earth observation, supporting applications from air quality monitoring to climate studies. Conventional physics-based AOD retrieval methods formulate the problem as a pixel-wise…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Zahid Hassan Tushar , Sanjay Purushotham

A comparison of modeled and observed Aerosol Optical Depth (AOD) is presented. 3D Eulerian multiphase chemistry-transport model TCAM is employed for simulating AOD at mesoscale. MODIS satellite sensor and AERONET photometer AOD are used for…

大气与海洋物理 · 物理学 2011-07-15 C. Carnevale , G. Mannarini , E. Pisoni , M. Volta

Continuous aerosol monitoring in East Asia is essential due to the massive aerosol emissions from natural and anthropogenic sources. Geostationary satellites enable continuous aerosol monitoring; however, the observation is limited to the…

大气与海洋物理 · 物理学 2024-05-24 Sanghyeon Song , Yoojin Kang , Jungho Im

Measurements made by satellite remote sensing, Moderate Resolution Imaging Spectroradiometer (MODIS), and globally distributed Aerosol Robotic Network (AERONET) are compared. Comparison of the two datasets measurements for aerosol optical…

机器学习 · 统计学 2015-06-15 N. K. Malakar , D. J. Lary , D. Gencaga , A. Albayrak , J. Wei

Fusing satellite observations and station measurements to estimate ground-level PM2.5 is promising for monitoring PM2.5 pollution. A geo-intelligent approach, which incorporates geographical correlation into an intelligent deep learning…

大气与海洋物理 · 物理学 2018-01-31 Tongwen Li , Huanfeng Shen , Qiangqiang Yuan , Xuechen Zhang , Liangpei Zhang

In this study, we evaluated the performance of the MODIS C6.1 AOD products and compared them with the C6 products over regions in China with multifarious underlying surfaces during 2001 to 2016. The AOD retrievals were validated against 20…

大气与海洋物理 · 物理学 2019-01-30 Yuan Wang , Qiangqiang Yuan , Tongwen Li , Huanfeng Shen , Li Zheng , Liangpei Zhang

Object detection and classification using aerial images is a challenging task as the information regarding targets are not abundant. Synthetic Aperture Radar(SAR) images can be used for Automatic Target Recognition(ATR) systems as it can…

计算机视觉与模式识别 · 计算机科学 2022-12-15 Sumanth Udupa , Aniruddh Sikdar , Suresh Sundaram

The sulfur pollutants are the source of a sizeable portion of the air pollution. In this work, the spatial distribution and temporal trend of the mass concentration of two of the critical sulfur pollutants, SO2 and SO4, in addition to the…

大气与海洋物理 · 物理学 2019-09-24 Muhammed ElTahan , Mohammed Magooda

Satellite remote sensing has been reported to be a promising approach for the monitoring of atmospheric PM2.5. However, the satellite-based monitoring of ground-level PM2.5 is still challenging. First, the previously used polar-orbiting…

大气与海洋物理 · 物理学 2018-05-30 Tongwen Li , Chengyue Zhang , Huanfeng Shen , Qiangqiang Yuan , Liangpei Zhang
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