Risk Global Component Inventory Data Capture Tools Capturing building inventory data for earthquake risk assessment: The GEM perspective NCEO/CEOI Joint Science Conference, Nottingham 2/9/212 John Bevington, ImageCat Project Manager Inventory Data Capture Tools
ImageCat US (Long Beach, CA.) & UK (Guildford) offices R&D and Consultancy Application of EO and GIS data and tools for disaster risk management Post-disaster response Exposure development Recovery monitoring Cat model development Commercial arm: Exposure data development and enhancement Post-disaster response damage and loss assessment
ImageCat Collaborative Partners WORLDWIDE NORTH AMERICA EUROPE ASIA-PACIFIC
THE GLOBAL EARTHQUAKE MODEL Risk Global Component: Inventory Data Capture Tools
Catastrophe modelling Risk modelling helps answer: Where can events occur? How big will they be? What is the potential damage, economic and human losses? What are the financial consequences? Exposure Vulnerability Hazard Financial
Aims of IDCT Inventory Data Capture Tools Open source suite of tools for inventory generation Remote sensing Field observations Provide supplementary training and user guides Tailored for a variety of skill levels Per-building to city-wide scale Spatial Tiers Level 3 Building Neighborhood Level 2 City Province Level 1 Country Region Level Global
IDCT Project Team Advisory Committee Chair: Prof. Fumio Yamazaki 1. ImageCat (Lead) 2. British Geological Survey 3. CAR Ltd. 4. German Aerospace Centre (DLR) 5. German Research Centre for Geosciences (GFZ) 6. Karlsruhe Institute of Technology (KIT) 7. OpenGeo 8. SPA Risk LLC 9. Stanford University 1. University of Pavia 11. University of Nottingham 12. World Agency of Planetary Monitoring and Earthquake Risk Reduction (WAPMERR)
GEM Risk Global Consortia GEM Users & Beneficiaries (GEM Report 29/21)
IDCT Workflow - Basic
Task 1. Remote Sensing Goals Extraction of inventory boundary data from satellite or aerial imagery Multi-scale: from building footprints to urban/rural boundaries Generation of attributes: Per-building: including building height; roof type; building regularity Per-region: urban/rural; homogenous zones (e.g. land use, occupancy type, lateral load resisting system) Post-earthquake damage assessment tools Set of training and application guidelines for all tools Tools Open-source remote sensing toolkit QGIS, GRASS, Google Earth, BREC4GEM Open-source GIS functions for creating, cleaning & modifying data Crowdsourcing interface for damage assessment
Task 1. Remote Sensing Remote sensing & BREC testing inventory generation Remotely- Sensed Data Multispectral optical data Classification Supervised Unsupervised Building Classification BREC tool Resulting Footprint
Thailand (Com/Ind) Chile (Mixed) Thailand (Res) Pakistan (Mixed)
Protocol Development Challenge how to explain uncertainty to non-expert users Protocols Step-by-step guide for using QGIS, GRASS, BREC, Google Earth includes pre-processing, extraction of urban/non-urban areas, land-use classification, BREC footprint extraction, regularisation & cleaning data
IDCT Workflow - Basic
Direct Observation field tools Multi-platform Windows and Android OSs Standardized collection - GEM Taxonomy Contextual menus Geo-referenced collection. Support for ancillary media photos, video, voice
Direct Observation Tools Windows OS
Direct Observation Tools Android OS
IDCT Workflow - Basic
Mapping Schemes - SIDD Spatial Inventory and Damage Database Tool Conduit between data sets derived from both RS and DO Data based on a combination of regional defaults, expert opinion, survey data Easy creation and application of mapping schemes Iterative process to create inventory data
Real world application - Indonesia Work commissioned by the Government of Indonesia, Department of Finance Funded by AIFDR and GFDRR Creation of an exposure database for risk modelling ImageCat performed study through IDCT completed in May 211 Participation by local Indonesian companies
Mapping Schemes Direct Observation Remote Sensing Real world application - Indonesia Delineate urban/rural Define homogenous areas Mataram, Lombok 6.12356 15.572678 Characterize development Calculation of structural attributes Floor Area Residential Commercial Industrial Other Occupancy Class 2 Masonry Mobile Home Steel Concrete. 3. 2 5. 2. 1 5. 1. 5. Wood Model Building Type
Task 3. Mapping Schemes - Indonesia Pilot Building Counts and Floor Area (Sq M) by Land Use, Number of Stories and Structural Type Zone Land Use Basic Structural Type Detailed Structural Type Stories # of Buildings Total Sq Meters Airport Reinforced Concrete Frame 1 2 15, Commercial Masonry Confined masonry 1 861 173,413 Commercial Masonry Confined masonry 2 27 173,616 Commercial Masonry Reinforced masonry 1 175 37,352 Commercial Masonry Unreinforced clay brick 1 2151 33,389 Commercial Masonry Unreinforced clay brick 2 97 35,452 Commercial Masonry Unreinforced, with reinforced concrete floors 2 97 41,191 Commercial Reinforced Concrete Frame 1 451 15,211 Commercial Reinforced Concrete Frame 2 296 387,21 Commercial Reinforced Concrete Shear wall 1 77 12,214 Commercial Reinforced Concrete Shear wall 2 146 57,5 Commercial Timber/Wood Open frame at grade 1 886 118,346 Commercial Other Other 171 173,692 Industrial Masonry Confined masonry 1 849 171,21 Industrial Masonry Reinforced masonry 1 849 181,263 Industrial Reinforced Concrete Frame 2 562 735,185 Industrial Steel Braced frame 1 28 134,875 Industrial Steel Braced frame 7 1 8,784 Industrial Steel Light frame (transverse-frame; longitudinal-steel rod tension-only bracing) 1 562 762,777 Industrial Steel Moment frame 1 28 58,24 Industrial Steel Moment frame 2 28 48,667 Mataram Commercial Masonry Confined masonry 1 425 856,158 Mataram Commercial Masonry Confined masonry 2 3612 2,322,726 Mataram Commercial Masonry Confined masonry 3 195 461,887 Mataram Commercial Masonry Unreinforced clay brick 1 939 132,445 Mataram Commercial Other Other 273 56,991 Mataram Residential Masonry Confined masonry 1 2559 5,48,226 Mataram Residential Masonry Confined masonry 2 9889 6,359,222 Mataram Residential Masonry Confined masonry 3 114 2,7,35 Mataram Residential Masonry Unreinforced clay brick 1 1987 2,793,956 Mataram Residential Timber/Wood Shear Wall at Grade 1 845 72,913 Mataram Residential Other Other 187 49,425 Port Masonry Confined masonry 1 31 6,244
Testing Bishkek, Kyrgyzstan ISTANBUL Pylos, Greece Port-au-Prince, Haiti Pisco, Peru Padang, Indonesia South Pacific Christchurch, New Zealand 1&2: Tool Development & Beta testing (Inventory data): Bishkek; Padang; Pisco; Pylos; South Pacific. 3. Beta testing (Damage data): Christchurch; Port-au-Prince. 4. Demonstration: Istanbul
Key design concept Crowdsourcing
Summary EO data is a core resource for inventory capture Calculation of total building area and total number of buildings Land use classification for mapping schemes EO not in isolation - harnesses local knowledge, field surveys and engineering information GEM provides a standardized, open-source toolkit for seismic risk assessment worldwide Tools available in January 213 Watch this space!
Thank You For more information on IDCT, please contact: John Bevington: jb@imagecatinc.com