|Table of Contents|

Retrieval of Aerosol Optical Depth Using Two-Day MODIS Data(PDF)

《南京师大学报(自然科学版)》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2016年01期
Page:
139-
Research Field:
地理学
Publishing date:

Info

Title:
Retrieval of Aerosol Optical Depth Using Two-Day MODIS Data
Author(s):
Dai Ranpo1Xie Yong2Ma Qingyu1
(1.School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China)(2.Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences,Beijing 100094,China)
Keywords:
MODISapparent reflectanceaerosoloptical depth
PACS:
X513
DOI:
-
Abstract:
Retrieval of aerosol optical depth(AOD)has great significance on the studies of air pollution and effect of human activities on the environment. Based on the relationship between apparent reflectance AOD in atmospheric radiation transmission,AOD of two consecutive days are obtained by solving the equations constructed by Terra/MODIS data,apparent reflectance of channel 0.47,0.55,0.66 and 0.86 μm. To validate the precision of the inversion algorithm,a preliminary comparative study is conducted between the observed AOD from AERONET station and the retrieved AOD from Moderate-resolution Imaging Spectroradiometer(MODIS)over Taihu station. It is proved that the inversion error is less than 30%,and the aerosol exponents obtained by the proposed algorithm have nice consistency with the observations acquired by the ground sun photometers. The pilot study is an effective attempt to obtain AOD by using multiple satellite images,which can be used as a supplement for the monitoring of environmental pollution.

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Last Update: 2016-03-30