2016 Fiscal Year Final Research Report
Developing a method for estimating primary productivity based on absorption coefficient of phytoplankton in Lakes
| 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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| Project Period (FY) |
2013-04-01 – 2017-03-31
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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 |
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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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| Free Research Field |
リモートセンシング
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