Enabling heterogenous multi-scale database for emergency service functions through geoinformation technologies
Other literature type
Venugopala Rao, K.
Srinivasa Rao, S.
Ram Mohan Rao, K.
Satya Chandra, P.
Diwakar, P. G.
Dadhwal, V. K.
(issn: 2194-9034, eissn: 2194-9034)
Geographical Information Science (GIS) is now graduated from traditional desktop system to Internet system. Internet GIS is
emerging as one of the most promising technologies for addressing Emergency Management. Web services with different privileges
are playing an important role in dissemination of the emergency services to the decision makers. Spatial database is one of the most
important components in the successful implementation of Emergency Management. It contains spatial data in the form of raster,
vector, linked with non-spatial information. Comprehensive data is required to handle emergency situation in different phases. These
database elements comprise core data, hazard specific data, corresponding attribute data, and live data coming from the remote
locations. Core data sets are minimum required data including base, thematic, infrastructure layers to handle disasters. Disaster
specific information is required to handle a particular disaster situation like flood, cyclone, forest fire, earth quake, land slide,
drought. In addition to this Emergency Management require many types of data with spatial and temporal attributes that should be
made available to the key players in the right format at right time. The vector database needs to be complemented with required
resolution satellite imagery for visualisation and analysis in disaster management. Therefore, the database is interconnected and
comprehensive to meet the requirement of an Emergency Management. This kind of integrated, comprehensive and structured
database with appropriate information is required to obtain right information at right time for the right people. However, building
spatial database for Emergency Management is a challenging task because of the key issues such as availability of data, sharing
policies, compatible geospatial standards, data interoperability etc. Therefore, to facilitate using, sharing, and integrating the spatial
data, there is a need to define standards to build emergency database systems. These include aspects such as i) data integration
procedures namely standard coding scheme, schema, meta data format, spatial format ii) database organisation mechanism covering
data management, catalogues, data models iii) database dissemination through a suitable environment, as a standard service for
effective service dissemination.
National Database for Emergency Management (NDEM) is such a comprehensive database for addressing disasters in India at the
national level. This paper explains standards for integrating, organising the multi-scale and multi-source data with effective
emergency response using customized user interfaces for NDEM. It presents standard procedure for building comprehensive
emergency information systems for enabling emergency specific functions through geospatial technologies.