한반도 부근 Case-II 해역에 대한 랜샛 위성자료의 활용

Title
한반도 부근 Case-II 해역에 대한 랜샛 위성자료의 활용
Alternative Title
APPLICATION OF THE LANDSAT TM/ETM+ DATA FOR TURBID (CASE-II) WATERS AROUND KOREAN PENINSULA: ATMOSPHERIC CORRECTION AND SUSPENDED SEDIMENT RETRIEVAL ALGORITHM
Author(s)
유주형; Shanmugam; 문정언; 민지은; 안유환
KIOST Author(s)
Ryu, Joo Hyung(유주형)Moon, Jeong Eon(문정언)
Publication Year
2005-06-01
Abstract
Application of the Landsat TM/ETM+ signal over aquatic environment requires the retrieval of wa-ter-leaving radiance (Lw) from the total radiance recorded at the top-of-the-atmosphere (TOA) and thus of the water constituents’ of interests. Retrieval of Lw from the TOA signal using certain algo-rithm is referred to as the atmospheric correction, which over aquatic environment is more de-manding than over land because the signal from the water column is small and it carries immense information about biogeochemical variables in the ocean. This paper describes methods for the atmospheric corrections and suspended sediment algorithms in the Landsat TM/ETM+ imagery, especially from Case-II waters around Korean peninsula. Three atmospheric correction methods implemented and examined, using the TOA radiance or reflectance data, are path extraction and spectral shape matching methods (SSMM). Validation suggests that accurate the retrieval of wa-ter-leaving radiance is not feasible with the invalid assumption of the classical AC algorithms, but is feasible with SSMM. The goal of performing the atmospheric correction with SSMM to estimate suspended sediment (SS) concentration, using Landsat TM/ETM+ SS algorithm, has also been demonstrated on the Landsat TM/ETM+ imagery acquired over the highly turbid Wan-do and Jin-do bays of Korea.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31432
Bibliographic Citation
유럽원격탐사학회(EARSeL2005), pp.1 - 8, 2005
Publisher
유럽원격탐사학회
Type
Conference
Language
English
Publisher
유럽원격탐사학회
Related Researcher
Research Interests

Coastal Remote Sensing,RS based Marine Surveillance System,GOCI Series Operation,연안 원격탐사,원격탐사기반 해양감시,천리안해양관측위성 운영

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