ESTIMATION OF SALINITY DISTRIBUTIONS BASED ON THE OPTICAL PROPERTY OF COLOR DISSOLVED ORGANIC MATTER BY THE GEOSTATIONARY OCEAN CLOLOR SATELLITE IN TOKYO BAY
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- HIGA Hiroto
- 横浜国立大学 大学院都市イノベーション研究院
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- FUKUDA Tomohiro
- 横浜国立大学大学院 都市イノベーション学府
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- MIYASHITA Kazuya
- 横浜国立大学大学院 都市イノベーション学府
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- NAKAMURA Yoshiyuki
- 横浜国立大学 大学院都市イノベーション研究院
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- SUZUKI Takayuki
- 横浜国立大学 大学院都市イノベーション研究院
Bibliographic Information
- Other Title
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- 有色溶存有機物の光学特性を利用した静止海色衛星による東京湾の塩分分布推定に関する検討
- ユウショク ヨウゾンユウキブツ ノ コウガク トクセイ オ リヨウ シタ セイシカイショク エイセイ ニ ヨル トウキョウワン ノ エンブン ブンプ スイテイ ニ カンスル ケントウ
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Description
In order to estimate salinity distributions based on the optical properties of color dissolved organic matter using the geostationary ocean color satellite in Tokyo Bay, aCDOM(440) estimation model was developed using optical observation data in the field and the estimation application range of the estimated aCDOM(440) was evaluated using the developed bio-optical model for Tokyo Bay. As a result, the aCDOM(440) estimation error increased with increase of light absorption coefficient for particles but it was applicable to estimate salinity relatively after applying the model to GOCI image. Furthermore, the estimated salinity maps showed a situation that low salinity water mass near Edogawa estuarine area spreaded out to Funabashi and Urayasu offshore sides. In addition, when river discharges increased, it was confirmed that low salinity water mass spreaded from the estuarine areas of Arakawa, Sumida and Tama rivers to Kawasaki offshore and it was gradually mixed with high salinity water mass.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 73 (2), I_1237-I_1242, 2017
Japan Society of Civil Engineers