Validation of Photosynthetically Available Radiation Estimated from Satellite Data for Primary Productivity Model 

作成者 浅沼, 市男
作成者の別表記 ASANUMA, Ichio
日本十進分類法 (NDC) 450
内容 研究概要:A vertically resolved primary productivity model was proposed for a satellite remote sensing using a ocean color sensor and an infrared thermal sensor. A photosynthetically available radiation (PAR) was estimated from a satellite data and a radiative transfer model. A basic function for the PAR is given as a function of cloud distribution from satellite observations. A weekly composite of chlorophyll-a distribution by SeaWiFS was used to estimate a cloud distribution. The radiative transfer model, MODTRAN 4.3, was operated to compute the solar irradiation on the sea surface under the ideal atmospheric condition for 24 hours and for each month. A vertical distribution of PAR along the water column is given by an empirical equation as a function of chlorophyll-a concentration in the surface. A vertical distribution of chlorophyll-a concentration is given by an empirical equation as a function of chlorophyll-a and PAR in percentage. Then a primary productivity is computed based on the chlorophyll-a and sea surface temperature distribution with the PAR and related parameter along the water column. The current model indicated a good agreement with in-situ measurements.
コンテンツの種類 研究報告書 Research Paper
DCMI資源タイプ text
ファイル形式 application/pdf
掲載誌情報 Proceedings of the CEReS international symposium on remote sensing of the atmosphere and validation of satellite data page.62-67 (2001)
言語 英語

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