Underwater monitoring experiment using hyperspectral sensor, LiDAR and high resolution satellite imagery
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Title
- Underwater monitoring experiment using hyperspectral sensor, LiDAR and high resolution satellite imagery
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Author(s)
- 양찬수; 김선화
- KIOST Author(s)
- Yang, Chan Su(양찬수)
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Alternative Author(s)
- 양찬수; 김선화
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Publication Year
- 2014-09-22
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Abstract
- In general, hyper-spectral sensor, LiDAR and high spatial resolution satellite imagery for underwater monitoring are dependent on water clarity or water transparency that can be measured using a Secchi disk or satellite ocean color data. Optical properties in the sea waters of South Korea are influenced mainly by a strong tide and oceanic currents, diurnal, daily and seasonal variations of water transparency. The satellite-based Secchi depth (ZSD) analysis showed the applicability of hyper-spectral sensor, LiDAR and optical satellite, determined by the location connected with the local distribution of Case 1 and 2 waters. The southeast coastal areas of Jeju Island are selected as test sites for a combined underwater experiment, because those areas represent Case 1 water. Study area is a small port (<15m) in the southeast area of the island and linear underwater target used by sewage pipe is located in this area. Our experiments are as follows: 1. atmospheric and sun-glint correction methods to improve the underwater monitoring ability 2. inter-comparison of water depths obtained from three different sensors. Three sensors used here are the CASI-1500 (Wide‐ Array Airborne Hyperspectral VNIR Imager (0.38-1.05 microns), the Coastal Zone Mapping and Imaging Lidar (CZMIL) and Korean Multi-purpose Satellite-3 (KOMPSAT-3) with 2.8 meter multi-spectral resolution.tical properties in the sea waters of South Korea are influenced mainly by a strong tide and oceanic currents, diurnal, daily and seasonal variations of water transparency. The satellite-based Secchi depth (ZSD) analysis showed the applicability of hyper-spectral sensor, LiDAR and optical satellite, determined by the location connected with the local distribution of Case 1 and 2 waters. The southeast coastal areas of Jeju Island are selected as test sites for a combined underwater experiment, because those areas represent Case 1 water. Study area is a small port (<15m) in the southeast area of the island and linear underwater target used by sewage pipe is located in this area. Our experiments are as follows: 1. atmospheric and sun-glint correction methods to improve the underwater monitoring ability 2. inter-comparison of water depths obtained from three different sensors. Three sensors used here are the CASI-1500 (Wide‐ Array Airborne Hyperspectral VNIR Imager (0.38-1.05 microns), the Coastal Zone Mapping and Imaging Lidar (CZMIL) and Korean Multi-purpose Satellite-3 (KOMPSAT-3) with 2.8 meter multi-spectral resolution.
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/26025
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Bibliographic Citation
- SPIE Defence & Security, pp.1 - 7, 2014
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Publisher
- SPIE
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Type
- Conference
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Language
- English
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