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Determination of Chlorophyll Content and Trophic State of Lakes Using Field Spectrometer and IRS-1C Satellite Data in the Mecklenburg Lake District

Thiemann, Sabine and Kaufmann, Hermann (2000) Determination of Chlorophyll Content and Trophic State of Lakes Using Field Spectrometer and IRS-1C Satellite Data in the Mecklenburg Lake District. Remote Sensing of Environment, 73 (2), pp. 227-235. ELSEVIER. DOI: doi:10.1016/S0034-4257(00)00097-3.

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Abstract

Multitemporal data sets of the LISS-III sensor mounted on the Indian Remote Sensing Satellite (IRS-1C) and field reflectance spectra have been evaluated for estimating chlorophyll-a content in lakes. The results were compared to laboratory analyses of in situ water samples. Quantification from field reflectance spectra was carried out using the 678 nm absorption maximum and the 705 nm reflectance peak. For the evaluation of the LISS-III satellite data three approaches were compared: spectral height of the green peak, supervised maximum likelihood classification, and linear spectral unmixing. The latter gave the best results with the highest certainty measure of R2=0.85 and was applied to all five LISS-III data sets. The results are maps of the chlorophyll-a content in 10 μg/l classes for each of the five dates. For comparison of the accuracy of the different methods for water quality analysis, the trophic state index was calculated based on chlorophyll-a determination from laboratory, field spectra, and satellite data. Regarding the five lakes for which all the data were available, each method shows similar results for the estimation of trophic state

Document Type:Article
Title:Determination of Chlorophyll Content and Trophic State of Lakes Using Field Spectrometer and IRS-1C Satellite Data in the Mecklenburg Lake District
Authors:
AuthorsInstitution or Email of Authors
Thiemann, SabineUNSPECIFIED
Kaufmann, HermannGFZ Potsdam
Date:7 July 2000
Journal or Publication Title:Remote Sensing of Environment
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:73
DOI:doi:10.1016/S0034-4257(00)00097-3
Page Range:pp. 227-235
Publisher:ELSEVIER
Status:Published
Keywords:LISS-III sensor
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung und Erprobung von Verfahren zur Gewässerfernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Bärbel Bolowski
Deposited On:28 Jul 2006
Last Modified:27 Apr 2009 13:00

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