| Project/Area Number |
25420555
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
福島 武彦 筑波大学, 生命環境系, 教授 (90124354)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 湖沼基礎生産量 / 大気補正 / 生物光学モデル / クロロフィルa濃度 / 植物プランクトン吸収係数 / 有光層深度 / 経年変動 / リモートセンシング / 霞ヶ浦 / クロロフィル濃度 / SAMO－LUT法 / 大気補正法N-GWI / 基礎生産量 / MERISデータ / 高濁度湖沼 / 固有光学特性 / 吸収係数 / 後方散乱係数 / エアロゾルタイプ / 消散係数 / 大気補正法 / 不浸透面面積率 / 農地率 |
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| Outline of Final Research Achievements |
In this research, we tried to estimate the primary production of lakes from satellite data in a wide range and a long span. For this purpose, we first developed an atmospheric correction algorithm to eliminate the influence of the atmosphere contained in satellite data. Next, we estimated the inherent optical properties (i.e., coefficients of absorption and backscattering) of the lake from atmospherically corrected satellite data, and then developed algorithms for estimating the diffuse attenuation coefficient and euphotic zone depth of water bodies based on the remotely estimated inherent optical properties. Finally, we estimated primary production in Lake Kasumigaura using these parameters. This result can be used for healthy water use, conservation of aquatic ecosystems, and estimation of global carbon cycle.
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