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A case study at Starnberger See for hyperspectral bathymetry mapping using inverse modeling

Gege, Peter (2014) A case study at Starnberger See for hyperspectral bathymetry mapping using inverse modeling. In: Proceedings of WHISPERS 2014, pp. 1-4. WHISPERS 2014, 25.-27. Juni 2014, Lausanne, Switzerland.

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Official URL: http://www.ieee-whispers.com/

Abstract

In coastal regions, hyperspectral remote sensing is becoming an established method to map water depth. For inland waters however, only few studies based on empirical methods have been published so far. This paper presents a study for the German lake Starnberger See using a physically based approach. Hyperspectral data were acquired from airplane using a HySpex VNIR-1600 sensor. They were processed by inverse modeling using a radiative-transfer based analytical model. In situ measurements were taken to decide which model parameters to fit and which to keep constant during data analysis, and they were used to initialize the parameters. Bottom reflectance was determined from the image itself. An echo sounding survey was undertaken for validation. For the studied area, bathymetry could be mapped up to a depth of 8 m with a rms error of 37 cm. Accuracies of 10-25 cm from 0-4 m and 35-65 cm from 4-8 m seem possible if the remaining systematic errors can be further reduced, e.g. by accounting for changes of bottom reflectance.

Item URL in elib:https://elib.dlr.de/89958/
Document Type:Conference or Workshop Item (Speech)
Title:A case study at Starnberger See for hyperspectral bathymetry mapping using inverse modeling
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gege, Peterpeter.gege (at) dlr.deUNSPECIFIED
Date:27 June 2014
Journal or Publication Title:Proceedings of WHISPERS 2014
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-4
Status:Published
Keywords:hyperspectral, inversion, bathymetry, airborne sensor, HySpex
Event Title:WHISPERS 2014
Event Location:Lausanne, Switzerland
Event Type:international Conference
Event Dates:25.-27. Juni 2014
Organizer:IEEE
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:25 Jul 2014 14:43
Last Modified:31 Jul 2019 19:47

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