Microphysical Characteristics of Atmospheric Particulate Matter from NASA's MODIS, MISR, and AERONET Observations

Frontiers in Theoretical and Applied Physics/UAE 2017

Gad, N.^1 ; Shokr, M.^2 ; Ibrahim, Alaa^1,3

Zewail City of Science and Technology, Physics of Earth and Universe, Giza, Egypt^1

Environment and Climate Change Canada, Toronto

ON, Canada^2

Cairo University, Faculty of Science, Physics Department, Giza, Egypt^3

关键词: Aerosol optical depths;    Aerosol robotic network stations;    Atmospheric particulate matter;    Geometrical property;    Ground-based observations;    Satellite measurements;    Satellite remote sensing;    Single scattering albedo;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/869/1/012081/pdf
DOI  :  10.1088/1742-6596/869/1/012081

来源: IOP

【 摘 要 】

We present a comparative study of atmospheric particulate matter (also known as aerosols) observed by satellite remote sensing and ground-based observations. We compare satellite measurements obtained by NASA's Moderate Resolution Imaging Spectro-Radiometer (MODIS) and Multi-angle Imaging Spectro-Radiometer (MISR) instruments against the ground-based aerosol sun-photometer data from the Aerosol Robotic Network (AERONET) station in Cairo, Egypt from 2003 to 2014 to build a long-term database for climatological studies and to improve upon the accuracy and coverage achievable from the satellite data. We deduce microphysical and geometrical properties about the dominant aerosols based on key optical properties including aerosol optical depth (AOD), single scattering albedo (SSA), and Ångström exponent (AE). This has allowed us to place important constraints on the type of aerosols (natural, anthropogenic, and biogenic).