현장, MODIS자료와의 비교를 통한 GOCI 해색 산출물 검증

Title
현장, MODIS자료와의 비교를 통한 GOCI 해색 산출물 검증
Alternative Title
Validation of GOCI Ocean Color Products via Comparison with In-Situ and MODIS Data
Author(s)
김원국; 안재현; 문정언; 박영제
KIOST Author(s)
Ahn, Jae Hyun(안재현)Moon, Jeong Eon(문정언)Park, Young Je(박영제)
Publication Year
2014-04-17
Abstract
Geostationary Ocean Color Imager (GOCI) data has been operated successfully for more than 3.5 years since its launch in June, 2010. Various modifications have been made in atmospheric correction and other algorithms to secure good quality of GOCI’s radiometric and ocean color products. In this presentation, we provide validation results of GOCI’s ocean color products (remote sensing reflectance (Rrs)), by comparing GOCI data accumulated over 3.5 years to in-situ measurements collected from multiple field-campaigns as well as with MODIS level 2 data. First, correlation analysis was performed between GOCI/MODIS and in-situ data to investigate the relative accuracy and differences in scatter patterns. Secondly, chlorophyll-a concentration data of GOCI and MODIS-Aqua are compared for selected dates. Both GOCI and MODIS images are co-registered by transforming to the geographic coordinate and scatter plots are generated using the matched pairs.f GOCI’s radiometric and ocean color products. In this presentation, we provide validation results of GOCI’s ocean color products (remote sensing reflectance (Rrs)), by comparing GOCI data accumulated over 3.5 years to in-situ measurements collected from multiple field-campaigns as well as with MODIS level 2 data. First, correlation analysis was performed between GOCI/MODIS and in-situ data to investigate the relative accuracy and differences in scatter patterns. Secondly, chlorophyll-a concentration data of GOCI and MODIS-Aqua are compared for selected dates. Both GOCI and MODIS images are co-registered by transforming to the geographic coordinate and scatter plots are generated using the matched pairs.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/26369
Bibliographic Citation
International Symposium on Remote Sensing 2014, 2014
Publisher
대한원격탐사학회
Type
Conference
Language
English
Publisher
대한원격탐사학회
Related Researcher
Research Interests

Ocean Color Remote Sensing,Satellite Applications,Ocean color Algorithm,해양원격탐사,위성활용,해색 알고리즘

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