A generalized geo-hazard warning system

J. K. Ghosh, D. Bhattacharya, N. K. Samadhiya, P. Boccardo

Research output: Contribution to journalArticlepeer-review

Abstract

An automated geo-hazard warning system is the need of the hour. It is integration of automation in hazard evaluation and warning communication. The primary objective of this paper is to explain a geo-hazard warning system based on Internet-resident concept and available cellular mobile infrastructure that makes use of geo-spatial data. The functionality of the system is modular in architecture having input, understanding, expert, output and warning modules. Thus, the system provides flexibility in integration between different types of hazard evaluation and communication systems leading to a generalized hazard warning system. The developed system has been validated for landslide hazard in Indian conditions. It has been realized through utilization of landslide causative factors, rainfall forecast from NASA's TRMM (Tropical Rainfall Measuring Mission) and knowledge base of landslide hazard intensity map and invokes the warning as warranted. The system evaluated hazard commensurate with expert evaluation within 5-6 % variability, and the warning message permeability has been found to be virtually instantaneous, with a maximum time lag recorded as 50 s, minimum of 10 s. So it could be concluded that a novel and stand-alone system for dynamic hazard warning has been developed and implemented. Such a handy system could be very useful in a densely populated country where people are unaware of the impending hazard.

Original languageEnglish
Pages (from-to)1273-1289
Number of pages17
JournalNatural Hazards
Volume64
Issue number2
DOIs
Publication statusPublished - Oct 2012

Keywords

  • automated system
  • cellular communication
  • geo-hazard
  • geo-spatial data
  • knowledge base
  • warning system

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