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Mapping of water constituents in Lake Constance using multispectral airborne scanner data and a physically based processing scheme

Heege, Thomas and Fischer, Jürgen (2004) Mapping of water constituents in Lake Constance using multispectral airborne scanner data and a physically based processing scheme. Canadian Journal of Remote Sensing, 30 (1), pp. 77-86.

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Abstract

A physically based method to determine water constituents in case II waters from imaging spectrometer data is presented. The processing scheme includes modules for sunglitter correction, aerosol retrieval, atmospheric correction, and the retrieval of water constituents from subsurface reflectance spectra in case II waters. For the aerosol retrieval, the sun glitter, and the atmospheric correction modules, an azimuthally resolved radiative transfer model for a multilayer atmosphere-ocean system with a flat water surface is used. The retrieval of water constituents is achieved by an iterative fitting algorithm to adjust modeled and measured underwater reflectances. The processing scheme is applied to airborne multispectral scanner Daedalus AADS1268 in ATM (airborne thematic mapper) modus. Owing to the sensor properties (reduced radiometric sensitivity of the blue channel), it was not possible to work completely without additional data; Gelbstoff absorption could not be retrieved. It had to be inputted and was kept constant over the mission area. The processing system has been tested for multitemporal mapping of water constituents at Lake Constance. The results show the system as an efficient and reliable tool for the inversion of remote sensing data from natural waters.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Mapping of water constituents in Lake Constance using multispectral airborne scanner data and a physically based processing scheme
Authors:
AuthorsInstitution or Email of Authors
Heege, ThomasUNSPECIFIED
Fischer, JürgenFreie Universität Berlin
Date:2004
Journal or Publication Title:Canadian Journal of Remote Sensing
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:30
Page Range:pp. 77-86
Status:Published
Keywords:Remote sensing, airborne, multispectral, inversion, water constituents, case II water, Lake Constance
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:03 Feb 2006
Last Modified:06 Jan 2010 22:27

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