Inversion of Aerosol Optical Depth Based on the CCD and IRS Sensors on the HJ-1 Satellites

Remote Sensing

Yang Zhang¹  Zhihong Liu¹  Yongqian Wang¹  Zhixiang Ye¹ 

[1] College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China; E-Mails:

关键词: aerosol optical depth;    HJ-1 satellite;    dark pixel;    albedo;   

DOI  :  10.3390/rs6098760

来源: mdpi

【 摘 要 】

To perform a high-resolution aerosol optical depth (AOD) inversion from the HJ-1 satellites, a dark pixel algorithm utilizing the HJ-1 satellite data was developed based on the Moderate-Resolution Imaging Spectroradiometer (MODIS) algorithm. By analyzing the relationship between the apparent reflectance from the 1.65 μm and 2.1 μm channels of MODIS, a method for estimating albedo using the 1.65 μm channel data of the HJ-1 satellites was established, and a high-resolution AOD inversion in the Chengdu region based on the HJ-1 satellite was completed. A comparison of the inversion results with CE318 measured data produced a correlation of 0.957, respectively, with an absolute error of 0.106. An analysis of the AOD inversion results from different aerosol models showed that the rural aerosol model was suitable as a general model for establishing an aerosol inversion look-up table for the Chengdu region.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland