| Simulation and evaluation of the quality and availability of typical GLI ocean image |
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| 作者姓名： | PAN Delu Tasuku TANAKA MAO Zhihu LI Shujing |
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| 作者单位： | Laboratory of Ocean Dynamic Processes and Satellite Oceanography of State Oceanic Administration, Hangzhou 310012, China,Earth Observation Research Center (EORC), NASDA 1-8-10 Harumi Chuo, Tokyo 106-0032, Japan,Laboratory of Ocean Dynamic Processes and Satellite Oceanography of State Oceanic Administration, Hangzhou 310012, China,Laboratory of Ocean Dynamic Processes and Satellite Oceanography of State Oceanic Administration, Hangzhou 310012, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Grant No. 40006011), The Major State Basic Research Development Program of China (G1999043701) and Japan STA fellowship (JISTEC ID#399024) |
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| 摘 要： | ADEOS-II satellite will be launched in the near future. It collocates many remote sensing instruments in the same platform. Among them, Global Image (GLI) is considered to be a main sensor which will play a key role. In order to understand the characteristics of future GLI ocean color images, a simulation and evaluation of the quality and availability of GLI typical ocean image has been done. In the paper, we first introduce the simulation models briefly, and simulate typical cases of radiance images at visible channels, in which the radiance distribution is based on geographic location, the satellite orbital parameters and sensor properties. A method, complex signal noise ratio (CSNR) to evaluate the image quality and availability, is developed according to the characteristics of image. Meanwhile, a series of CSNR images are generated from the simulated radiance components for different cases, which can be used to evaluate the quality and availability of GLI images before the ADEOS-II is placed in orbit. Finally, the quality and availability of GLI images are quantitatively analyzed by the simulated CSNR data. The results will be beneficial to the people who are in charge of GLI mission or plan to use the data from GLI.
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| 关 键 词： | radiance complex signal noise ratio simulation satellite ocean remote sensing |
Simulation and evaluation of the quality and availability of typical GLI ocean image |
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| PAN Delu,Tasuku TANAKA,MAO Zhihu,LI Shujing.Simulation and evaluation of the quality and availability of typical GLI ocean image[J].Progress in Natural Science,2002,12(6):463-467. |
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| Authors: | Pan Delu Tasuku TANAKA Mao Zhihua Li Shujing |
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| Institution: | 1. Laboratory of Ocean Dynamic Processes and Satellite Oceanography of State Oceanic Administration, Hangzhou 310012, China
2. Earth Observation Research Center (EORC), NASDA 1-8-10 Harumi Chuo, Tokyo 106-0032, Japan) |
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| Abstract: | ADEOS-II satellite will be launched in the near future. It collocates many remote sensing instruments in the same platform. Among them, Global Image (GLI) is considered to be a main sensor which will play a key role. In order to understand the characteristics of future GLI ocean color images, a simulation and evaluation of the quality and availability of GLI typical ocean image has been done. In the paper, we first introduce the simulation models briefly, and simulate typical cases of radiance images at visible channels, in which the radiance distribution is based on geographic location, the satellite orbital parameters and sensor properties. A method, complex signal noise ratio (CSNR) to evaluate the image quality and availability, is developed according to the characteristics of image. Meanwhile, a series of CSNR images are generated from the simulated radiance components for different cases, which can be used to evaluate the quality and availability of GLI images before the ADEOS-II is placed in orbit. Finally, the quality and availability of GLI images are quantitatively analyzed by the simulated CSNR data. The results will be beneficial to the people who are in charge of GLI mission or plan to use the data from GLI. |
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| Keywords: | radiance complex signal noise ratio simulation satellite ocean remote sensing |
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