Articles | Volume 21, issue 11
https://doi.org/10.5194/nhess-21-3599-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/nhess-21-3599-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Nov 2021
Research article |
| 26 Nov 2021
| 26 Nov 2021
Variable-resolution building exposure modelling for earthquake and tsunami scenario-based risk assessment: an application case in Lima, Peru
Juan Camilo Gomez-Zapata
CORRESPONDING AUTHOR
Seismic Hazard and Risk Dynamics, GFZ German Research Centre for
Geosciences, Potsdam, 14473, Germany
Institute for Geosciences, University of Potsdam, Potsdam, 14469,
Germany
Nils Brinckmann
eScience Centre, GFZ German Research Centre for Geosciences, 14473,
Potsdam, Germany
Sven Harig
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine
Research (AWI), Bremerhaven, 27570, Germany
Raquel Zafrir
Seismic Hazard and Risk Dynamics, GFZ German Research Centre for
Geosciences, Potsdam, 14473, Germany
Head Aerospace Group, Paris, 92250, France
Massimiliano Pittore
Seismic Hazard and Risk Dynamics, GFZ German Research Centre for
Geosciences, Potsdam, 14473, Germany
Institute for Earth Observation, EURAC Research, 39100, Bolzano,
Italy
Fabrice Cotton
Seismic Hazard and Risk Dynamics, GFZ German Research Centre for
Geosciences, Potsdam, 14473, Germany
Institute for Geosciences, University of Potsdam, Potsdam, 14469,
Germany
Andrey Babeyko
Geodynamic Modelling, GFZ German Research Centre for Geosciences,
Potsdam, 14473, Germany
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Short summary
We present variable-resolution boundaries based on central Voronoi tessellations (CVTs) to spatially aggregate building exposure models and physical vulnerability assessment. Their geo-cell sizes are inversely proportional to underlying distributions that account for the combination between hazard intensities and exposure proxies. We explore their efficiency and associated uncertainties in risk–loss estimations and mapping from decoupled scenario-based earthquakes and tsunamis in Lima, Peru.
We present variable-resolution boundaries based on central Voronoi tessellations (CVTs) to...
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