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Atmospheric Correction Inter-comparison eXercise.

Authors :
Doxani G
Vermote E
Roger JC
Gascon F
Adriaensen S
Frantz D
Hagolle O
Hollstein A
Kirches G
Li F
Louis J
Mangin A
Pahleva N
Pflug B
Vanhellmont Q
Source :
Remote sensing [Remote Sens (Basel)] 2018 Feb; Vol. 10 (2), pp. 352. Date of Electronic Publication: 2018 Feb 24.
Publication Year :
2018

Abstract

The Atmospheric Correction Inter-comparison eXercise (ACIX) is an international initiative with the aim to analyse the Surface Reflectance (SR) products of various state-of-the-art atmospheric correction (AC) processors. The Aerosol Optical Thickness (AOT) and Water Vapour (WV) are also examined in ACIX as additional outputs of an AC processing. In this paper, the general ACIX framework is discussed; special mention is made of the motivation to initiate this challenge, the inter-comparison protocol and the principal results. ACIX is free and open and every developer was welcome to participate. Eventually, 12 participants applied their approaches to various Landsat-8 and Sentinel-2 image datasets acquired over sites around the world. The current results diverge depending on the sensors, products and sites, indicating their strengths and weaknesses. Indeed, this first implementation of processor inter-comparison was proven to be a good lesson for the developers to learn the advantages and limitations of their approaches. Various algorithm improvements are expected, if not already implemented, and the enhanced performances are yet to be investigated in future ACIX experiments.

Details

Language :
English
ISSN :
2072-4292
Volume :
10
Issue :
2
Database :
MEDLINE
Journal :
Remote sensing
Publication Type :
Academic Journal
Accession number :
32704392
Full Text :
https://doi.org/10.3390/rs10020352