Operation of In-situ Optical Instruments Calibration Laboratory

Title
Operation of In-situ Optical Instruments Calibration Laboratory
Author(s)
안기범; 조성익; 오은송; 박영제
KIOST Author(s)
Cho, Seong Ick(조성익)Park, Young Je(박영제)
Publication Year
2015-12-08
Abstract
After the launch of GOCI (Geostationary Ocean Color Imager) in 2010, KOSC has been performed the in-situ observations for vicarious calibration and measured the optical characteristics of the in-situ instruments, such as Analytical Spectral Devices FieldSpec3, TriOS and RAMSES. Because the vicarious calibration depends on the collection of ground truth data, in-situ spectroradiometers should be calibrated each time in the laboratory. The optical laboratory in KOSC (Korea Ocean Satellite Center) has established for three aspects. The first is the optical performance characterization of the in-situ ocean optical instruments such as ASD Fieldspec Spectroradiometer. The second is the quantification of the variation between before and after field work, and the last is the relative correction of them. The laboratory is equipped with a 20 inches integrating sphere (USS-2000S, LabSphere) and KRISS (Korea Research Institute of Standards and Science) calibration lamp (Tungsten Halogen, 250~1050 nm) that are traceable to the National Institute of Standards Technology (NIST-traceable) for the standard light source, a reference spectrometer (MCPD9800, Photal) for the relative calibration, and an optical table having a flatness of ± 0.1 mm.
In this study, we suggest that the continuous monitoring of the in-situ instruments should be performed for more accurate calibration and validation of GOCI. The ASD instruments, calibrated i Devices FieldSpec3, TriOS and RAMSES. Because the vicarious calibration depends on the collection of ground truth data, in-situ spectroradiometers should be calibrated each time in the laboratory. The optical laboratory in KOSC (Korea Ocean Satellite Center) has established for three aspects. The first is the optical performance characterization of the in-situ ocean optical instruments such as ASD Fieldspec Spectroradiometer. The second is the quantification of the variation between before and after field work, and the last is the relative correction of them. The laboratory is equipped with a 20 inches integrating sphere (USS-2000S, LabSphere) and KRISS (Korea Research Institute of Standards and Science) calibration lamp (Tungsten Halogen, 250~1050 nm) that are traceable to the National Institute of Standards Technology (NIST-traceable) for the standard light source, a reference spectrometer (MCPD9800, Photal) for the relative calibration, and an optical table having a flatness of ± 0.1 mm.
In this study, we suggest that the continuous monitoring of the in-situ instruments should be performed for more accurate calibration and validation of GOCI. The ASD instruments, calibrated i
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24995
Bibliographic Citation
The 3rd AWOC / 12th KJWOC 2015, pp.37, 2015
Publisher
JAMSTEC
Type
Conference
Language
English
Publisher
JAMSTEC
Related Researcher
Research Interests

Development of Ocean Satellites and Data Analytics,해양위성 및 영상분석 실용화 기술 개발

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse