Conceptual design of image acquisition and operation for next generation Geostationary Ocean Color Imager(GOCI-II)

Title
Conceptual design of image acquisition and operation for next generation Geostationary Ocean Color Imager(GOCI-II)
Author(s)
안기범; 조성익; 오은송; 박영제
KIOST Author(s)
Cho, Seong Ick(조성익)Park, Young Je(박영제)
Publication Year
2014-09-24
Abstract
For the succession of GOCI mission, is due for completion
in 2017, development of GOCI-II was started in 2012 and is
scheduled to be launched in 2018. GOCI-II has two operation
modes (1) LA (Local Area) which is observation for the around
of the Korean Peninsula, keep the observation from GOCI,
with freely selection of the observation region in FD (Full
disk) area, and (2) FD which can take images of full Earth disk
around it covering a circle field of ± 60° longitude and latitude
centered at the spacecraft nadir, 128.2°E. The size of LA region
is same with GOCI, 2,500 km ? 2,500 km, but the GSD (Ground
Sampling Distance) of LA is increased from 500 m to 250 m
comparing with GOCI. The duty cycle of GOCI-II is 10 for the LA
and 1 for the FD per day. The number of LA observation is also
increased from 8 to 10.
GOCI-II is first observation of full Earth disk with a stepstare
scanning at GEO (Geostationary Earth Orbit), using
2D detector. So the operation scenario of FD needs to be
optimized. In order to significantly FD observation, solar zenith
angle at the earth surface needs to be applied to the operation
concept. In case of ocean remote sensing, it will keep the lower
solar zenith angle and it will move from east to west with time
according to the position of sun. However it will be affected
by sun-glint in many slot images. In this study, we suggest the
conceptual operation scenario of FDnd
of the Korean Peninsula, keep the observation from GOCI,
with freely selection of the observation region in FD (Full
disk) area, and (2) FD which can take images of full Earth disk
around it covering a circle field of ± 60° longitude and latitude
centered at the spacecraft nadir, 128.2°E. The size of LA region
is same with GOCI, 2,500 km ? 2,500 km, but the GSD (Ground
Sampling Distance) of LA is increased from 500 m to 250 m
comparing with GOCI. The duty cycle of GOCI-II is 10 for the LA
and 1 for the FD per day. The number of LA observation is also
increased from 8 to 10.
GOCI-II is first observation of full Earth disk with a stepstare
scanning at GEO (Geostationary Earth Orbit), using
2D detector. So the operation scenario of FD needs to be
optimized. In order to significantly FD observation, solar zenith
angle at the earth surface needs to be applied to the operation
concept. In case of ocean remote sensing, it will keep the lower
solar zenith angle and it will move from east to west with time
according to the position of sun. However it will be affected
by sun-glint in many slot images. In this study, we suggest the
conceptual operation scenario of FD
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/26022
Bibliographic Citation
SPIE Remote Sensing 2014, pp.46, 2014
Publisher
SPIE
Type
Conference
Language
English
Publisher
SPIE
Related Researcher
Research Interests

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

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