Atmospheric correction updates for GDPS v.1.4

Title
Atmospheric correction updates for GDPS v.1.4
Author(s)
안재현; 박영제; 이보람; 김원국
KIOST Author(s)
Ahn, Jae Hyun(안재현)Park, Young Je(박영제)
Publication Year
2015-12-09
Abstract
Geostationary Ocean Color Imager (GOCI) records the total radiance exiting the top-of-atmosphere (TOA) at 6 visible bands (centered at 412, 443, 490, 555, 660, and 680nm) and 2 near-infrared (NIR) bands (centered at 745 and 865nm) bands with a moderate spatial resolution and a high temporal frequency. The current GOCI standard atmospheric correction method that is included in the GDPS ver.1.3 is theoretically based on the SeaWiFS/MODIS standard approach (Gordon and Wang, 1994), however, its implementation is partially different (Ahn et al., 2012 Ahn et al., 2015).In this study, we describes the updated atmospheric correction schemes for GDPS ver.1.4 including 1) water vapor absorption correction, 2) sun-glint correction, 3) modified white-cap correction, 4) modified Rayleigh scattering correction, and 5) correlated adjustments of vicarious gains and turbid water NIR correction model coefficients. These scheme updates significantly impact on the oligotrophic region of GOCI observation.h a moderate spatial resolution and a high temporal frequency. The current GOCI standard atmospheric correction method that is included in the GDPS ver.1.3 is theoretically based on the SeaWiFS/MODIS standard approach (Gordon and Wang, 1994), however, its implementation is partially different (Ahn et al., 2012 Ahn et al., 2015).In this study, we describes the updated atmospheric correction schemes for GDPS ver.1.4 including 1) water vapor absorption correction, 2) sun-glint correction, 3) modified white-cap correction, 4) modified Rayleigh scattering correction, and 5) correlated adjustments of vicarious gains and turbid water NIR correction model coefficients. These scheme updates significantly impact on the oligotrophic region of GOCI observation.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24990
Bibliographic Citation
한일해색원격탐사워크숍, pp.9, 2015
Publisher
JAMSTEC/해양위성센터
Type
Conference
Language
English
Publisher
JAMSTEC/해양위성센터
Related Researcher
Research Interests

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

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