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Estimation of phytoplankton concentration from downwelling irradiance measurements in water

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/
Document Type:Article
Title:Estimation of phytoplankton concentration from downwelling irradiance measurements in water
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gege, PeterUNSPECIFIEDUNSPECIFIED
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 - Erdbeobachtung
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:06 Sep 2019 15:21

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  • Estimation of phytoplankton concentration from downwelling irradiance measurements in water. (deposited 02 Jan 2013 11:12) [Currently Displayed]

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