Title
Improving Spatial Coverage Of Satellite Aerosol Classification Using A Random Forest Model
Abstract
The spatial coverage of satellite aerosol classification was improved using a random forest (RF) model trained with observational data including target (aerosol type) and input (satellite measurement) variables. The AErosol RObotic NETwork (AERONET) aerosol-type dataset was used for the target variables. Satellite input variables with many missing data or low mean-decrease accuracy were excluded from the final input variable set, and good performance in aerosol-type classification was achieved. The performance of the RF-based model was evaluated on the basis of the wavelength dependence of single-scattering albedo (SSA) and fine-mode-fraction values from AERONET. Typical SSA wavelength dependence for individual aerosol types was consistent with that obtained for aerosol types by the RF-based model. The spatial coverage of the RF-based model was also compared with that of previously developed models in a global-scale case study. The study demonstrates that the RF-based model allows satellite aerosol classification with improved spatial coverage, with a performance similar to that of previously developed models.
Year
DOI
Venue
2021
10.3390/rs13071268
REMOTE SENSING
Keywords
DocType
Volume
aerosol classification, aerosol remote sensing, space-borne remote sensing, aerosol type, machine learning, TROPOMI, MODIS, AERONET, AOD
Journal
13
Issue
Citations 
PageRank 
7
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Wonei Choi112.81
Hanlim Lee2136.22
Daewon Kim300.68
Serin Kim400.34