ImageCat Ltd.

Guildford, United Kingdom

ImageCat Ltd.

Guildford, United Kingdom
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Corbane C.,European Commission - Joint Research Center Ispra | Saito K.,Cambridge Architectural Research Ltd | Dell'Oro L.,United Nations Institute for Training and Research UNITAR | Bjorgo E.,United Nations Institute for Training and Research UNITAR | And 17 more authors.
Photogrammetric Engineering and Remote Sensing | Year: 2011

The paper provides an account of how three key relief organizations worked together after the devastating Haiti earthquake to produce the first damage assessment based mainly on the use of remotely-sensed imagery. This assessment was jointly conducted by the World Bank (WB), the United Nations Institute for Training and Research (UNITAR) Operational Satellite Applications Programme (UNOSAT), and the European Commission's Joint Research Centre (JRC). This paper discusses the data sources used for the assessment, the methodologies employed to evaluate building damage, and a set of independent studies to validate the final damage results. Finally, a vision of the role of remote sensing technologies in future disasters is presented that serves as a road map for methodological improvements © 2011 American Society for Photogrammetry and Remote Sensing.


Platt S.,Cambridge Architectural Research Ltd CAR | Bevington J.,ImageCat Ltd | Verrucci E.,ImageCat Ltd | So E.,University of Cambridge | Pittore M.,Helmholtz Center Potsdam
NCEE 2014 - 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering | Year: 2014

Data collected from satellite and airborne sensors have been widely used in post-earthquake damage assessment and in planning immediate humanitarian and financial assistance. Disaster managers are also increasingly using geospatial data to plan and track recovery. This paper describes the use of a disaster scenario planning game as a tool to better understand the information needs of post-disaster managers. In particular it aims to show how, when, and what information derived from remote sensing can be used to support decision making at various stages of the recovery process. The information needs of hazard preparedness and recovery planning were assessed in a series of earthquake scenario planning exercises with senior disaster managers in Kyrgyzstan, Tajikistan and Turkey. These realistic scenarios were played-out during one-day exercises that allowed disaster personnel to simulate the post-earthquake decision making process. A suite of innovative methodologies for dynamic, multi-resolution monitoring of recovery were provided to assess if, when, and how remote sensing-based tools can be integrated into existing decision workflows. The findings pinpoint how information derived from multi-resolution imagery can be effective in planning and assessing recovery of transportation networks, transitional shelters and the built environment, whilst providing proxy information for socio-economic indicators.


Grant
Agency: European Commission | Branch: FP7 | Program: CP-FP | Phase: SPA.2012.1.1-04 | Award Amount: 2.44M | Year: 2013

SENSUM will deliver innovative methodologies and software tools for dynamic, multi-resolution monitoring of pre-disaster vulnerability and preparedness and post-disaster recovery planning and monitoring, based on current and future space-based products and a novel approach to in-situ observation for data rich and data poor countries. For this project, earthquake and landslide related vulnerability indicators are considered through test-cases in and outside Europe. The project responds to the urgent need to monitor and map time-dependent hazard and vulnerability, by triangulating space-based and in-situ data-collection, according to the type and extent of the natural hazard. The project will analyse the data needs of the end users through the three civil protection partners. A novel sampling framework will be developed that guides the in-situ data collection and integration process. Novel in-situ data collection tools (e.g. omni-directional imaging) will be included. Advanced analysis and processing of current and future space-based products will enhance the approach. Uncertainties will be fully considered. Soon-to-be-released space products such as DLR Global Urban Footprint will be validated and their integration with the proposed methodologies explored. Data needs for post-disaster recovery will be addressed within the same framework, resulting in a comprehensive methodological solution to the monitoring of time-varying indicators at multiple spatial scales throughout the disaster cycle. The consortium of 8 prominent scientific institutions and highly skilled SMEs has considerable experience in their respective fields. Many partners currently collaborate on the Global Earthquake Model Inventory Data Collection Tool (GEM IDCT). The ultimate goal is to produce a multi-resolution time varying indicator monitoring framework that applies to the whole disaster cycle. The framework is intended to become the de-facto standard for future mapping of vulnerabilities.


Rossetto T.,University College London | D'Ayala D.,University College London | Gori F.,Rijekaprojekt Koning | Persio R.,Arup | And 12 more authors.
Bulletin of Earthquake Engineering | Year: 2014

In November 2012 EEFIT launched its first ever return mission to an earthquake affected site. The L’Aquila Earthquake site was chosen as this is a recent European event of interest to the UK and European earthquake engineering community. The main aims of this return mission were to document the earthquake recovery process and this paper presents an overview of the post-disaster emergency phase and transition to reconstruction in the Aquila area after the earthquake. It takes an earthquake engineering perspective, highlighting areas mainly of interest to the fields of structural/seismic engineering and reconstruction management. Within the paper, reference is made to published literature, but also to data collected in the field during the return mission that would not otherwise have been available. The paper presents some specific observations and lessons learned from the L’Aquila return mission. However, in light of current international efforts in conducting return missions, the paper ends with some reflections on the value that return missions can provide to the field of earthquake engineering in general, based on the EEFIT L’Aquila experience. © The Author(s) 2014.


Rathfon D.,AECOM Technology Corporation | Davidson R.,University of Delaware | Bevington J.,ImageCat Ltd. | Vicini A.,ImageCat Ltd. | Hill A.,University of Memphis
Disasters | Year: 2013

Quantitative assessment of post-disaster housing recovery is critical to enhancing understanding of the process and improving the decisions that shape it. Nevertheless, few comprehensive empirical evaluations of post-disaster housing recovery have been conducted, and no standard measurement methods exist. This paper presents a quantitative assessment of housing recovery in Punta Gorda, Florida, United States, following Hurricane Charley of August 2004, including an overview of the phases of housing recovery, progression of recovery over time, alternative trajectories of recovery, differential recovery, incorporation of mitigation, and effect on property sales. The assessment is grounded in a conceptual framework that considers the recovery of both people and place, and that emphasises recovery as a process, not as an endpoint. Several data sources are integrated into the assessment-including building permits, remotely sensed imagery, and property appraiser data-and their strengths and limitations are discussed with a view to developing a standardised method for measuring and monitoring housing recovery. © 2013 The Author(s). Journal compilation © Overseas Development Institute, 2013.


Hill A.,University of Memphis | Bevington J.,ImageCat Ltd. | Davidson R.,University of Delaware | Chang S.,University of British Columbia | And 8 more authors.
Earthquake Spectra | Year: 2011

This study seeks to assess the levels of community-scale building damage and socioeconomic disruption following the January 2010 Haiti earthquake. Damage and disruption were analyzed for pre-event, post-event, and early recovery time periods in seven Haitian communities-three inside and four outside Port-au-Prince. Damage datasets from the Global Earth Observation- Catastrophe Assessment Network (GEO-CAN) postdisaster assessment were combined with analyses of fine-resolution satellite and aerial imagery to quantify building damage and recovery status, and were verified with field data. Disruption was assessed using community-level data obtained from interviews conducted in May 2010 with community leaders, NGOs, and government utility providers. The data pertain to 11 sectors, including shelter, livelihoods, and social networks. The findings document severe disruption and uneven restoration four months after the earthquake. Disruption showed little correlation with physical damage. Observations suggest that the impacts of the earthquake must be understood in the context of chronic disruption, and many consequences of the earthquake are merely deferred during recovery. © 2011, Earthquake Engineering Research Institute.


Bevington J.S.,ImageCat Ltd. | Hill A.A.,University of Memphis | Davidson R.A.,University of Delaware | Chang S.E.,University of British Columbia | And 3 more authors.
Structures Congress 2011 - Proceedings of the 2011 Structures Congress | Year: 2011

The process of community recovery in the aftermath of a disaster is complex, long lasting, resource intensive, and poorly understood. Insights described here result from an ongoing project that aims to monitor, quantify, and evaluate the process of post-disaster recovery for two events, Hurricane Charley (2004, Charlotte County and Punta Gorda, Florida) and Hurricane Katrina (2005, Harrison County and Biloxi, Mississippi). A mixed-methods approach using statistical data, interviews, and remote sensing-derived data is applied in an effort to understand as well as monitor, measure and evaluate the recovery process and its outcomes. Observations associated with the post-disaster course of moving residents from temporary to transitional, and ultimately permanent housing serves as the focus for this paper. This work represents a discrete portion of a multi-sector project where Economic, Environmental, Housing/Infrastructure, and Social elements of community recovery are explored. Understanding community recovery can inform community resilience-building strategies. © ASCE 2011.


Ghosh S.,ImageCat Inc. | Huyck C.K.,ImageCat Inc. | Greene M.,Earthquake Engineering Research Institute | Gill S.P.,The World Bank | And 4 more authors.
Earthquake Spectra | Year: 2011

This paper provides an account of how the Global Earth Observation Catastrophe Assessment Network (GEO-CAN) was formed to facilitate a rapid damage assessment after the 12 January 2010 Haiti earthquake. GEO-CAN emerged from the theory of crowdsourcing and remote sensing-based damage interpretation and represents a new paradigm in post-disaster damage assessment. The GEO-CAN community, working with the World Bank (WB), the United Nation Institute for Training and Research (UNITAR) Operational Satellite Applications Programme (UNOSAT) and the European Commission's Joint Research Centre (JRC) led the way for a rapid Post Disaster Needs Assessment (PDNA) utilizing remote-sensing based analysis as the primary source of information for building damage. The results of the GEO-CAN damage assessment were incorporated into the final PDNA framework developed by the WB-UNOSAT-JRC and adopted by the Haitian government. The GEO-CAN initiative provides valuable lessons on multi-agency collaboration, rapid and implementable damage assessment protocols under extreme situations for the disaster management profession, developmental organizations, and society. © 2011, Earthquake Engineering Research Institute.


Kongar I.,University College London | Verrucci E.,University College London | Verrucci E.,ImageCat Ltd. | Rossetto T.,University College London | Bevington J.,ImageCat Ltd.
ECCOMAS Thematic Conference - COMPDYN 2013: 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Proceedings - An IACM Special Interest Conference | Year: 2013

The aim of this paper is to present a trivial proof of concept for analysing the impact of post-earthquake damage to lifelines on indicators of social resilience. The conceptual methodology is demonstrated by carrying out a GIS-based analysis of the impact of damage to highways bridges on accessibility to emergency healthcare facilities in the Santa Clarita suburb of Los Angeles. A magnitude 6.9 earthquake from the Santa Susana fault zone was used as a scenario event with bridge damage predicted using the HAZUS methodology to calculate exceedance probabilities and uniform random sampling to assign damage states. Moderate damage state was used as the threshold for bridge closure. The system performance was measured as the mean travel time between neighbourhoods and the local hospital, weighted to account for population. The distribution of delay amongst the population has also been derived. The analysis was repeated for three further scenarios to identify the critical node for prioritisation of mitigation works by comparing the impacts with the post-earthquake scenario. The analysis was based on the Los Angeles County disaster route network with straight-line approximations for travel distance on local roads. Results were compared to those obtained using the actual path distance on local roads and this showed that interpretation of the results could vary depending on the measurement method and the decision variable used. Therefore straight-line distance is not a safe approximation. The methodology proposed here will be expanded in the future for a more detailed study assessing the riskfrom damage to multiple lifelines and using a wider range of indicators.


Grant
Agency: GTR | Branch: Innovate UK | Program: | Phase: Feasibility Study | Award Amount: 149.74K | Year: 2014

We aim to develop a demonstrator for real-time flood monitoring & impact assessment for re/insurance and civil contingency sectors. This “Foresight” system provides a technical harness for a diverse and disparate set of environmental data, including river gauge data, hazard maps and assets at risk. The system, delivered as a webservice, will be compatible with existing business intelligence and decision support tools currently used. “Foresight” will provide: multi-temporal updates of forecast flood hazard based on live environmental data feeds; geographic intersection of a spatial database of exposed assets with dynamic hazard maps; near real-time alert warnings based on user thresholds of risk tolerance; assessment of potential impact from unfolding flood events, in days and hours before peak flood. “Foresight” allows users to reduce response times and ensure efficacy and appropriateness of response decisions. The 12-month project will prove the methodological and technical foundation for future implementation of a multi-hazard, multi-territory impact forecasting webservice for a range of sectors. Advisors include Lloyd’s of London, Oasis LMF and the UK Cabinet Office.

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