Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2004.10a
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- Pages.196-200
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- 2004
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- 1226-9743(pISSN)
An Experimental Study on the Image-Based Atmospheric Correction Using Multispectral Data
- Lee Kwang-Jae (Korea Aerospace Research Institute) ;
- Kim Yong-Seung (Korea Aerospace Research Institute)
- Published : 2004.10.01
Abstract
The purpose of this study is to examine the imagebased atmospheric correction models using the data from Landsat Enhanced Thermal Mapper Plus (ETM+) that have quite similar spectral characteristics to the forthcoming Korea Multi-Purpose SATellite (KOMPSAT)-2 Multi-Spectral Camera (MSC), and the in-situ measured surface reflectance data during satellite overflight. The main advantage of this type of correction is that it does not require in-situ measurements during each satellite overflight. While substantial differences are present between Top-Of-the Atmosphere (TOA) reflectance and in-situ measurements, the results showed that Case 1 based on COST model gives most accurate results among three cases. The accuracy of Case 2 is very close to Case 1 and its values are smaller than in-situ data. No notable features appear between some bands in the Case 3 and in-situ data. It is expected from this study that if the current methods are applied to the IKONOS high resolution data, we will be able to develop the suitable atmospheric correction methods for MSC data.