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Proceedings Paper

Determination of bank structures and river width variations using remote sensing data
Author(s): Pierre Karrasch; Sebastian Hunger
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Paper Abstract

The European Water Framework Directive commits the member states to achieve the good ecological status for all water bodies. For this purpose on the level of the national states monitoring programs are established with the aim to verify the actual status by means of regular surveys. Already in the past remote sensing data in conjunction with methods of geospatial data analysis revealed the added value in terms of monitoring strategies regarding the European Water Framework Directive. Depending on the type of data they can be used for example for the determination of several parameters of rivers and streams. The present analyses show how it is possible to determine the parameter of width variation of small and medium rivers based on digital orthophotos. Because this parameter strongly depends on the geometric quality of the riverbank line, its determination is given particular attention. It turns out that mainly riparian vegetation has a large impact on the visibility of the riverbank line. In a multi-stage process different methods for the identification of affected areas are developed with the aim to reconstruct the true riverbank line in a second step. Finally these data form the basis for the determination of river width variations.

Paper Details

Date Published: 25 October 2016
PDF: 18 pages
Proc. SPIE 9998, Remote Sensing for Agriculture, Ecosystems, and Hydrology XVIII, 999818 (25 October 2016); doi: 10.1117/12.2239943
Show Author Affiliations
Pierre Karrasch, TU Dresden (Germany)
Sebastian Hunger, TU Dresden (Germany)

Published in SPIE Proceedings Vol. 9998:
Remote Sensing for Agriculture, Ecosystems, and Hydrology XVIII
Christopher M. U. Neale; Antonino Maltese, Editor(s)

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