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相關文獻
- The Atmospheric Effect Correction of the Ocean Color Imager of ROCSAT-1--Simulations and Using Sea WiFS Data as the Example
- The Atmospheric Correction of ROCSAT-1 OCI Imagery--(1) : OCITRAN-1
- The Atmospheric Correction of ROCSAT-1 OCI Imagery--(2) : OCITRAN-2
- 中華衛星一號研發概況與成效
- 臺灣周邊海域基礎生產量分佈之即時、全面、連續觀測--衛星搭載海洋水色儀的利用
- Development of ROCSAT-1 Program
- System Architecture of the IPEI Payload on ROCSAT-1
- Scientific Mission of the IPEI Payload Onboard ROCSAT-1
- Ocean Color Imager: Instrument Description and Its Performance
- The Scientific Project for ROCSAT-1/OCI
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題 名 | The Atmospheric Effect Correction of the Ocean Color Imager of ROCSAT-1--Simulations and Using Sea WiFS Data as the Example=中華衛星一號水色儀之大氣校正研究 |
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作 者 | 劉振榮; 黃世任; 郭宗華; 陳萬金; 曾忠一; | 書刊名 | Terrestrial, Atmospheric and Oceanic Sciences |
卷 期 | 增刊 民88.03 |
頁 次 | 頁99-114 |
分類號 | 447.964 |
關鍵詞 | 中華衛星一號; 水色儀; 大氣校正; OCI; Atmospheric correction; Water leaving radiance; Sun glint; |
語 文 | 英文(English) |
英文摘要 | The total radiance observed by satellite-borne ocean color sensors results from several contributions: the atmospheric molecular and aerosol scattering, the sea surface reflectance and the water leaving radiance. In order to apply these ocean color sensor data to access the ocean parameters, atmospheric correction should be undertaken in advance to extract the water leaving radiance that is relevant to the ocean parameters. The aim of this study is to establish one atmospheric correction process for the Ocean Color Image (OCI) of ROCSAT-1, and some pre-launch simulation results are demonstrated. The simulation shows that the water leaving radiance estimation seems to be reliable by the ocean color radiance algorithm proposed in this paper, because the estimated total pigment concentration seems to be reasonable. Further investigations done in this study using Sea WiFS data reveal that the water leaving radiance is somewhat overestimated in comparison with ship measurements because of the underestimated aerosol scattering. The reason for this underestimation is probably the inconsistent marine aerosol type and size distribution between the real and input atmospheric parameters. The simulated result also shows the sun glint effect is significant and plays the most important role in the radiance contributions of OCI imagery. Consequently, choosing the most suitable acquiring time of OCI in order to avoid the sun glint effect will be very important in future OCI operation scheduling. |
本系統中英文摘要資訊取自各篇刊載內容。