Towards periodic and time-referenced flood risk assessment using airborne remote sensing

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Title:Towards periodic and time-referenced flood risk assessment using airborne remote sensing
Creators:
Brenner, Claire ; claire dot brenner at boku dot ac dot at ; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Meisch , Claude ; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Apperl, Benjamin; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Schulz, Karsten ; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 64, 4, pp. 438-447
Uncontrolled Keywords:flood risk management, damage potential analysis, object-based image analysis, orthophoto analysis, building detection

Abstract

Flood risk management is founded on the regular assessment of damage potential. A significant parameter for assessing damage potential is the number of at-risk objects. However, data sets on exposure are often incomplete and/or lack time-references. Airborne remote sensing data, such as orthophotos, offers a regularly-updated, time-referenced depiction of land use. As such, remote sensing data compensates for incomplete data sources (such as digital cadastral maps). Orthophotos can even be used to analyze the temporal dynamics of flood damage potential, providing that timereferenced information is available for multiple time points. This paper describes a method for integrating orthophotos into flood risk analyses. In Austria, orthophotos are updated every three years, allowing their integration into cyclical flood risk assessments. The results of a case study presented in this paper demonstrate that orthophotos are most useful where other data sources, such as digital cadastral maps, are incomplete. In such situations, orthophotos lead to a significant increase in estimated damage potential. Orthophoto analysis allows damage potentials to be re-assessed at regular intervals, another major advantage over digital cadastral maps. Orthophoto analysis thus supports the evaluation of flood risk management options.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Towards periodic and time-referenced flood risk assessment using airborne remote sensing
Translated title: Towards periodic and time-referenced flood risk assessment using airborne remote sensing
Creators:
Brenner, Claire ; claire dot brenner at boku dot ac dot at ; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Meisch , Claude ; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Apperl, Benjamin; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Schulz, Karsten ; University of Natural Resources and Life Sciences, Vienna, Institute of Water Management, Hydrology and Hydraulic Engineering (IWHW), Muthgasse 18, 1190 Vienna, Austria.
Uncontrolled Keywords:flood risk management, damage potential analysis, object-based image analysis, orthophoto analysis, building detection
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:64
Number:4
Page Range:pp. 438-447
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8685
Item Type:Article
Deposited On:10 Nov 2016 17:47
Last Modified:10 Nov 2016 16:47

Citation

Brenner, Claire; Meisch , Claude; Apperl, Benjamin; Schulz, Karsten (2016) Towards periodic and time-referenced flood risk assessment using airborne remote sensing. Journal of Hydrology and Hydromechanics, 64 (4). pp. 438-447. ISSN 0042-790X

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