DI-09-01a - geo

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DI-09-01a - geo
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
EUCENTRE proposal for GEO
 The Remote Sensing Section of EUCENTRE, after
careful consideration of the GEO Workplan, has
submitted a proposal, supported by the Seismic Risk
section, to address seismic vulnerability mapping
based on Earth Observation (EO)
 The EUCENTRE proposal was endorsed by UNSPIDER and included into the WP 2009-2011 as the
leading theme of the subtask DI-09-01a, “Vulnerability
and Risk Mapping”
Fabio Dell’Acqua, Diego Polli
– University of Pavia
EUCENTRE
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
Proposal pillars
 Framework with a combination of methods
 Addressing different aspects of vulnerability (physical,
human, ease of emergency intervention and recovery,
…)
 EO-based, but not exclusively (ancillary, GIS …)
 Initially focussed on urban areas
 Extraction of features of interest from satellite images
(e.g. number of floors, ratio between window and
façade areas, width of vertical walls between windows,
…)
Fabio Dell’Acqua, Diego Polli
– University of Pavia
EUCENTRE
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
The processing chain
Fabio Dell’Acqua, Diego Polli
– University of Pavia
EUCENTRE
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
Case study: Messina (Italy)
optical image & radar image of building
vulnerability curves
 Fairly complete dataset, including satellite optical and
airborne radar
 We have proposed Messina as a possible supersite
(ISPRA is willing to contribute relevant data)
Fabio Dell’Acqua, Diego Polli
– University of Pavia
EUCENTRE
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
Case study: Priolo (Italy)
Detection
of critical
features
Vulnerability map
High-resolution satellite image
Fabio Dell’Acqua, Diego Polli
Seismic vulnerability
model
– University
of Pavia
EUCENTRE
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
Case study: Caribbean islands
test sites (in red)
sample vulnerability map
 Optical QB images + TerraSAR-X acquisitions
 Output in a GIS-compatible format
Fabio Dell’Acqua, Diego Polli
– University of Pavia
EUCENTRE
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
S&T issues
 some parameters relevant to vulnerability estimation:
 either can not be extracted from remotely sensed data at
all, or
 they can, but only by relying on weak correlations
 limited availability of VHR radar data
 integration of:
 proximity sensing
 “community remote sensing” (voluntary contribution of
information under various forms)
Fabio Dell’Acqua, Diego Polli
– University of Pavia
EUCENTRE
GEO Disaster SBA S&T review – Ankara, Turkey, 25 March 2010
Conclusions
 The following goals were reached:
 A vulnerability model has been chosen
 A processing chain has been set up and experimented
 The chain is not yet automatised, although some of its
component are
 We lack accurate ground truth to assess the quality
and reliability of results
 Ideas for funding a currently underfunded activity?
Fabio Dell’Acqua, Diego Polli
– University of Pavia
EUCENTRE

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