Urban multi-hazard risk analysis using GIS and Remote Sensing: A case study from Kohima Town, Nagaland, India

P. Khatsu, C.J. van Westen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)
35 Downloads (Pure)

Abstract

Many cities develop without any proper urban development planning, let alone that within these development plans natural hazards, such as landslides or earthquakes, and the risk they pose to the city and its inhabitants, are taken into account. Therefore a study on multi-hazard risks in urban areas is of prime importance to be able to implement vulnerability reduction measures, and involve risks as an integral component of development planning. This study gives an example of such as multi-hazard risk assessment, carried out for a rapidly developing city with very limited availability of existing data: the town of Kohima, capital of the state of Nagaland in North eastern India. Building footprints, which serve as the basis for the multi-hazard risk assessment, were generated from remote sensing images. The characteristics of the elements at risk, such as building structure, material, condition of buildings, socio-economic aspects, population information, etc. were collected through extensive field surveys with the help of the digital footprint map. Along with the data collected from remote sensing data, field mapping and historical data, individual hazards were analyzed in GIS environment using vector operations, and all the individual hazard maps were integrated to prepare a multi-hazard map. The number of households in each building was calculated to derive the population at risk to different individual hazards. Individual buildings with both single and multi-hazard were identified and population at risk was calculated. A comparison of the existing situation in the study area with that of the standards prescribed at the national level was made. The situation in the study area is falling short of the norms and efforts should be made by both local authorities as well as local communities to reduce the high level of vulnerability.
Original languageEnglish
Title of host publicationACRS 2005
Subtitle of host publicationProceedings 26th Asian Conference on Remote Sensing, 7-11 November 2005, Hanoi, Vietnam
Place of PublicationHanoi, Vietnam
PublisherACRS
Pages603-611
Volume1
ISBN (Print)978-1-60423-751-1
Publication statusPublished - 2005
Event26th Asian Conference on Remote Sensing, ACRS 2005 - Hanoi, Viet Nam
Duration: 7 Nov 200511 Nov 2005
Conference number: 26

Conference

Conference26th Asian Conference on Remote Sensing, ACRS 2005
Abbreviated titleACRS
Country/TerritoryViet Nam
CityHanoi
Period7/11/0511/11/05

Keywords

  • ADLIB-ART-1270
  • ESA

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