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Synopsis of Natural Hazards

 

Synopsis of natural hazards involves the development of probabilistic or scenario-based deterministic methods to compare different types of risks. As a case study, the German Freestate of Saxony, where flood, storm and earthquake hazards dominate, is selected. Risk is calculated on the basis of hazard and vulnerability models and a building asset database. Different risks are compared by risk curves as well as by developing extreme scenarios at the municipal level.

 

Project description

 

Different types of natural hazards have caused enormous damage in Germany. Lots of people and their properties have been affected.

Each type of natural hazard varies in space, time and intensity and can thus cause different amounts of damage. Until now risk assessment for different types of natural hazards - including its components hazard, exposure and vulnerability analysis - have been carried out separately. To enable planners and decision-makers to make adequate decisions on risk reduction and loss prevention programs a synoptical view of all natural hazards in a region under study is necessary. One of the few comparative risk analyses is given by Grünthal et al. (2006).

The main goal of the project “Synopsis of natural hazards” is to develop appropriate probabilistic and scenario-based deterministic methods so that the risks originated from different hazards can be compared within a common framework. It will tell which area is most vulnerable to which hazard or which hazard leads to maximum losses in an area (Murshed, 2006).

Within this study, the Freestate of Saxony is selected as the pilot area, where three natural hazards - floods, earthquakes, and wind storms - coincide. The quantitative risk analyses will be carried out for residential buildings at the municipal level taking into consideration all factors that contribute to the risk namely hazard, exposed elements and vulnerability. To keep the analysis consistent and comparable, the risk estimations will be done within a common range of annual probabilities and on a common database about the assets of residential buildings that is provided by Kleist et al. (2006).

Different risks will be plotted as risk curves into a damage-frequency graph per municipality which enables a quantitative comparison of risks at different probability levels (see Fig. 1). As derivatives of the risk curves, the Probable Maximum Loss (PML) and the Average Annual Loss (AAL) will be calculated per hazard type for all Saxonian municipalities. To allow for appropriate disaster management strategies, extreme scenarios will be developed as well. Finally, a GIS-tool will be developed for the spatial representation of the risk curves and their derivates as well as for the visualization of different scenarios.

 

Contact
name title phone e-mail
Dipl. -Met.    
Dipl.-Geoök.    
Dipl.-Geoök.    
Dipl.-Wi.-Ing.    
Dr. +49 331 288-1550 kreibHrb1∂gfz-potsdam de
Dr.    
Dr. Ing. +49 721 608-44442 Bijan KhazaiIfk9∂kit edu
Dr.-Ing.    
M.Sc.    
Prof. Dr. +49 331 977 2984 thiekenCpk8∂uni-potsdam de
Prof. Dr. +49 331 288-1500 bmerzUmt5∂gfz-potsdam de
Prof. Dr. +49 721 608-44431 friedemann wenzelGez7∂kit edu
Prof. Dr. +49 331 288-1120 ggruePnx5∂gfz-potsdam de

Publications

Murshed, S.M.   Synopsis of natural hazards in Saxony   Presentation on CEDIM Workshop, November 2006, Potsdam    

Grünthal, G., Thieken, A.H., Schwarz, J., Radtke, K.S., Smolka, A., Merz, B.   Comparative Risk Assessments for the City of Cologne - Storms, Floods, Earthquakes   Natural Hazards (2006), 38 (1-2): 21-44    

Kleist, L., Thieken, A. H., Müller, M., Seifert, I., Borst, D., and Werner, U.   Estimation of the regional stock of residential buildings as a basis for comparative risk assessment for Germany   Nat. Hazards Earth Syst. Sci., 6, 541-552   » Link

Tyagunov, S., Heneka, P., Stempniewski, L., Zschau, J., Ruck, B. and Kottmeier, C.   CEDIM: From Multi-Hazards to Multi-Risks   Proceedings of the 1st ARMONIA conference, Barcelona, December 2005    

THIEKEN, A.H., B. MERZ, G. GRÜNTHAL, J. SCHWARZ, K. RADTKE, A. SMOLKA, M. GOCHT   A Comparison of storm, flood and earthquake risk for the city of Cologne, Germany.   Proceedings of the 1st ARMONIA conference, Barcelona, December 2005    

Links

 

Euro-Mediterranean Disaster Information Network (EU-MEDIN)
http://www.eu-medin.org/

ARMONIA
http://www.armoniaproject.net/

European Spatial Planning Observation Network (ESPON)
http://www.espon.eu/

International Center for Geohazards
http://www.geohazards.no/

Arbeitskreis Naturgefahren und Naturrisiken
http://www.ak-naturgefahr.de/

Zentrum für Naturrisiken und Entwicklung Bayreuth
http://www.zeneb.uni-bayreuth.de/

Katastrophen und Notlagen in der Schweiz
http://www.bevoelkerungsschutz.admin.ch/

Benfield UCL Hazard Research Centre
http://www.benfieldhrc.org/

Network for Natural Hazards at ETH Zurich
http://www.hazneth.ethz.ch/research/index

Natural Hazards Center, University of Colorado at Boulder
http://www.colorado.edu/hazards/

Center for Hazard and Risk Reasearch at Colombia University
http://www.ldeo.columbia.edu/chrr/

Hazard and Vulnerability Research Institute, University of South Carolina
http://artsandsciences.sc.edu/geog/hvri/front-page

FEMA’s Multi-Hazard Identification and Risk Assessment (MHIRA)
http://www.fema.gov/media-library-data/20130726-1545-20490-4487/mhira_in.pdf

Geoscience Australia
http://www.ga.gov.au/

Links information portal
http://www.disasterlinks.net/

Society for Risk Analysis (SRA)
http://www.sra.org/

SRA Europe
http://www.sraeurope.org/