황해와 동중국해에서 경험적인 방법과 형광법으로 개발된 엽록소 농도 산출 알고리즘들에 대한 비교 연구

Title
황해와 동중국해에서 경험적인 방법과 형광법으로 개발된 엽록소 농도 산출 알고리즘들에 대한 비교 연구
Alternative Title
Comparison of Chl-a algorithms with the empirical and fluorescence methods in the Yellow and East China Seas
Author(s)
문정언; 안유환; 유주형
KIOST Author(s)
Moon, Jeong Eon(문정언)Ryu, Joo Hyung(유주형)
Publication Year
2009-12-10
Abstract
Chl-a algorithms for GOCI were developed by empirical and fluorescence methods with in-situ ocean environmental and optical data obtained seawater around the Korean Peninsula during 1998–2005. The empirical chl-a algorithm for GOCI were compared with OC4v4 & OC2v2 (chl-a algorithms for SeaWiFS) and YOC Chl-a algorithms. The RMSs of OC2v2, OC4v4, YOC Chl-a and empirical GOCI Chl-a algorithms obtained to apply in seawater around the Korean Peninsula were 0.392, 0.424, 0.247 and 0.218, respectively. The decrease rates of chlorophyll concentration obtained from YOC Chl-a algorithm for chlorophyll concentrations obtained from OC4v4 & OC2v2 algorithms were 48.2 % and 34.5 %, respectively. The decrease rates of chlorophyll concentration obtained from empirical GOCI Chl-a algorithm for chlorophyll concentrations obtained from OC4v4 & OC2v2 algorithms were 57.1 % and 45.8 %, respectively. The empirical GOCI Chl-a algorithm was showed better result than YOC Chl-a algorithm. The correlation coefficients (R2) between Flu(681), Flu(688),Flu(area) and in-situ chlorophyll concentrations were 0.88, 0.90 and 0.90, respectively. The R2 between Rrs(444)/Rrs(555), Rrs(490)/Rrs(555) and in-situ chlorophyll concentrations were 0.79 and 0.85, respectively. The R2 of the fluorescence-based algorithms appeared to be higher than those of the standard spectral ratios algorithms. In CASE-II waters, the fluorescence-based algorithms tended to reproduce in-situ chlorophyll concentrations, whereas standard spectral ratios algorithms gave inconsistent estimates, probably caused by the interference of inorganic sediment and dissolved organic matter in these waters. In the coastal area of the Korean Peninsula, we think that the fluorescence GOCI Chl-a algorithm is showed better result than the empirical chl-a algorithms.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/29116
Bibliographic Citation
The 6th Japan-Korea Workshop on OCEAN COLOR REMOTE SENSING, pp.9, 2009
Publisher
KORDI & Nagoya University
Type
Conference
Language
English
Publisher
KORDI & Nagoya University
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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