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Lake water quality monitoring using hyperspectral airborne data - a semiempirical multisensor and multitemporal approach for the Mecklenburg Lake District, Germany

Thiemann, S. and Kaufmann, H. (2002) Lake water quality monitoring using hyperspectral airborne data - a semiempirical multisensor and multitemporal approach for the Mecklenburg Lake District, Germany. Remote Sensing of Environment, 81 (2-3), pp. 228-237.

Full text not available from this repository.

Abstract

This study presents an approach for the determination of the trophic parameters Secchi disk transparency and chlorophyll-a from hyperspectral airborne casi and HyMap data with multitemporal validity. Based on in situ water sampling and reflectance measurements, algorithms have been developed. For Secchi disk transparency, the area between a base line and the spectrum from 400 nm to 750 nm was calculated and correlated to the Secchi disk transparency measured in situ; chlorophyll-a concentration was quantified using the existing reflectance ratio at 705 nm and 678 nm, which showed a linear relationship to chlorophyll-a concentration from laboratory spectrophotometric measurements. The algorithms have been adapted to the spectral characteristics of the airborne sensors and applied to these data recorded in September 1997 and 1998, May and June 1999. The validation using independent in situ reference data showed mean standard errors of 1.2 to 1.3 m for Secchi disk transparency and of 10.2 to 10.9 µg/l chlorophyll-a.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2001,
Title:Lake water quality monitoring using hyperspectral airborne data - a semiempirical multisensor and multitemporal approach for the Mecklenburg Lake District, Germany
Authors:
AuthorsInstitution or Email of Authors
Thiemann, S.UNSPECIFIED
Kaufmann, H.UNSPECIFIED
Date:2002
Journal or Publication Title:Remote Sensing of Environment
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:81
Page Range:pp. 228-237
Status:Published
Keywords:monitoring, water quality, airborne, chlorophyll
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):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 22:01

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