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Gege, Peter (2012) Estimation of phytoplankton concentration from downwelling irradiance measurements in water. Israel Journal of Plant Sciences, 60 (1-2), pp. 193-207. Taylor & Francis. doi: 10.1560/IJPS.60.1-2.193.
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Abstract
The downwelling irradiance spectrum is so far not used directly for the determination of water constituents, mainly due to the large and unpredictable fluctuations of the underwater light field induced by the water surface. The potential of a new analytical model, which can cope with such environmental influences, was analyzed for the estimation of phytoplankton concentration using data from two German lakes. It turned out that the model is able to determine in these lakes phytoplankton concentration above a threshold between 0.4 and 0.9 µg/l, depending on the phytoplankton class, and total pigment concentration (sum of chlorophyll-a and phaeophytin-a) with an uncertainty of 0.7 µg/l. This new in situ spectroscopy method is particularily of interest for shallow waters, where it is difficult to apply the usual reflectance-based algorithms due to bottom influences.
| Item URL in elib: | https://elib.dlr.de/80265/ | ||||||||
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| Document Type: | Article | ||||||||
| Title: | Estimation of phytoplankton concentration from downwelling irradiance measurements in water | ||||||||
| Authors: |
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| Date: | 2012 | ||||||||
| Journal or Publication Title: | Israel Journal of Plant Sciences | ||||||||
| Refereed publication: | Yes | ||||||||
| Open Access: | Yes | ||||||||
| Gold Open Access: | No | ||||||||
| In SCOPUS: | Yes | ||||||||
| In ISI Web of Science: | Yes | ||||||||
| Volume: | 60 | ||||||||
| DOI: | 10.1560/IJPS.60.1-2.193 | ||||||||
| Page Range: | pp. 193-207 | ||||||||
| Publisher: | Taylor & Francis | ||||||||
| Status: | Published | ||||||||
| Keywords: | Downwelling irradiance, phytoplankton, inverse modeling, WASI | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Space | ||||||||
| HGF - Program Themes: | Earth Observation | ||||||||
| DLR - Research area: | Raumfahrt | ||||||||
| DLR - Program: | R EO - Earth Observation | ||||||||
| DLR - Research theme (Project): | R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old) | ||||||||
| Location: | Oberpfaffenhofen | ||||||||
| Institutes and Institutions: | Remote Sensing Technology Institute > Experimental Methods | ||||||||
| Deposited By: | Gege, Dr.rer.nat. Peter | ||||||||
| Deposited On: | 02 Jan 2013 11:12 | ||||||||
| Last Modified: | 08 Nov 2023 08:07 |
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