Vol. 8, No. 1, 1-10, 2009
Wolfgang Sulzer and Katharina Kern
Abstract
The main objectives of this project are to
provide time-series information to define and locate the urban sprawl trends in
sealing processes in Graz/Austria and to document the application and incorporation
of sealing maps into planning purposes of the municipal building authority of
the city of Graz (especially for the construction and renovation of sewage
systems). Developments in soil sealing are largely determined by spatial
planning strategies. Unfortunately, the effects of irreplaceable soil losses
are often not taken into account sufficiently. Sealing of the soil causes
significant (quantitative and qualitative) changes in groundwater recharging
and in the water balance. These changes have to be recognized by the
governmental authorities to construct appropriate drainage systems. Especially
the heavy rainfall in August 2005 with more than 120 mm per day and extreme
flooding and overload of the drainage system strengthen the importance of
detailed planning of urban watersheds and drainage system of the municipality
Graz by means of remotely sensed generated sealing maps.
Multitemporal sealing maps were generated by a digital classification of multispectral DAEDALUS Scanner data (1996 and 2004) and used for this study. Different methodologies and approaches of data analyses and their advantages and disadvantages for further applications in water management are documented in this paper.
Submitted: 12 Feb 2008
Revised: 19 Dec 2008
Accepted: 06 Jan 2009
Published: 18 Feb 2009
Responsible editor: Carsten Jürgens Citation
Sulzer W & K Kern, 2009. Derivation of multi-temporal soil sealing maps using high resolution Airborne Thematic Mapper (ATM) imagery and an examination of their usefulness in town planning. EARSeL eProceedings, 8(1): 1-10
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EARSeL European Association of Remote Sensing Laboratories, Strasbourg, France |
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BIS-Verlag |