Title
Extraction of urban information for seismic hazard and risk assessment in Lima, Peru using satellite imagery
Date Issued
01 January 2013
Access level
open access
Resource Type
journal article
Publisher(s)
Fuji Technology Press
Abstract
Lima City, Peru, is, like Japan, on the verge of a strike by a massive earthquake. Building inventory data for the city need to be created for earthquake damage estimation, so the city was subjected to the extraction of spatial distribution of building age from Landsat satellite time-series images and an assessing building height from ALOS/PRISM images. Interband calculation of Landsat time-series images gives various indices relevant to land covering. The transition of indices was evaluated to clarify urban sprawl taking place in the northern, southern, and eastern parts of Lima City. Built-up area data were created for buildings by age. The height of large-scale mid-to-highrise buildings was extracted by applying spatial filtering for a DSM (Digital Surface Model) generated from stereovision PRISM images. As a result, buildings with a small square measure, color similar to that of their surroundings, or complicated shapes turned out to be difficult to detect.
Start page
328
End page
345
Volume
8
Issue
2
Language
English
OCDE Knowledge area
Ingeniería estructural y municipal Estudios urbanos
Scopus EID
2-s2.0-84874591928
Source
Journal of Disaster Research
ISSN of the container
18812473
Sources of information: Directorio de Producción Científica Scopus