This document discusses the use of Geographic Information Systems (GIS) in disaster management. It begins with introductions to disaster management and GIS. It then reviews literature on previous applications of GIS to flood risk management and urbanization. The document presents two case studies, one on using GIS to manage flood risk in Allahabad, India, and another on tsunami risk analysis and evacuation planning in Gocek, Turkey. Both cases demonstrate how GIS can be used to map hazardous areas, infrastructure, and plan emergency responses. The document concludes that GIS is a valuable tool for disaster managers to obtain spatial data and visualize information needed for planning and response.

1. GIS IN DISASTER
MANAGEMENT
BY
T.SUDHEER
131873

2. CONTENTS
 INTRODUCTION
 GIS IN DISASTER MANAGEMENT
 LITERATURE REVIEW
 CASE STUDIES
- case study on flood disaster at Allahabad
-Tsunami Risk Analysis and Disaster
Management by Using GIS
 SUMMARY

3. DISASTER MANAGEMENT
 Disaster is an event causing great damage,
injury or loss of life
 Disaster management can be defined as the
discipline and profession of applying science,
technology, planning and management to deal
with extreme events.
 The emphasis of disaster management is
prevention and loss reduction

4.  Disaster management activity is divided
into the following phases as
Prediction
Prevention
Mitigation
Emergency management
Recovery

5. GIS
 GIS is a computer system used for capturing,
storing, querying and analyzing and displaying
geospatial data
GIS FUNCTIONS
 Spatial data management
 Display
 Query
 Modify
 Output

6. GIS in Disaster Management
 Accurate data availability
 Location of site accurately within least
permissible time
 Accessibility information between source and
destination
 Real time visualization of area of interest
 Reduce the time element involved in activities

7. LITERATURE REVIEW
 Levy et al. (2005)
proposed models to improve flood risk
management and a flood decision support
system architecture.
Mysiak et al.( 2005)
Illustrated the relationship and the interactions
between urbanization in the metropolis and the
process of flood Disaster Management

8.  Miller et al. (2004)
Dicussed the widest accessibility possible
with geographic information systems (GIS)–
internet architecture and addressing disaster
management issues
Frank et al.(1993)
DSS display capabilities include spatial data
handling, the editing of flood inundation maps,
and the animation of hydrologic and hydraulic
phenomenon

9. Case study-1
TITLE: GIS-based disaster management, A case
study for Allahabad Sadar sub-district(India) by
S.H. Abbas, R.K. Srivastava and R.P. Tiwari ( 2009)
 JOURNAL :Management of Environmental
Quality: An International Journal,2009
OBJECTIVE
 To demonstrate a Geographic Information
System (GIS)-based study on development of
District Disaster Management System for floods
for Allahabad Sadar Sub-District(India).

10. FIG 1 Maps showing Ganga and Yamuna rivers around the
study area

11. STUDY AREA
 The study area is Sadar, sub-district of Allahabad (India)
which is surrounded by river Ganga and Yamuna
 located between 81º 45ʹ to 82º latitude and 25º 15ʹ to 25º 30ʹ
longitude
METHODOLOGY
 An approach has been designed to explore the scope for the
combination of Disaster Management and GIS.
 The flood-prone areas have been identified and their positions
are marked using Arc View.
 GIS has been exploited to obtain the spatial information for
the effective Disaster Management for flood-affected areas

12. GIS-based maps for Disaster Management
Various maps were generated for the analysis in
the GIS platform like
 Flood-affected areas of Sadar sub-district
 Population density distribution in flood prone
areas
 Villages having road connectivity ,hospital
facility in flood affected areas
 Route map for the disaster prone area

13. FIG 2 .Map showing the areas affected by flood both by ganga and
yamuna rivers

14.  If any government agency or any non-
governmental organization wants to provide any
type of help to the affected people, they can
follow above generated map for having idea
about the requirement. With the help of the
developed GIS-based management system
district
 Village administrator can monitor all flood
management operations using GIS data base.

15. FIG 3.Map showing road connectivity

16.  Figure 3 shows the road network of villages
that are more vulnerable and are not been
connected by main road as well as metal road.
 The villages that are not having transport
connectivity can be identified.
 With the help of above information, one can
provide rescue first to those villages not
connected through metal road and after that
provide transportation to metal road connected
villages.

17. Summary
 It shows that in that sub-district Sadar of
Allahabad 54 villages are affected by flood
when high flood level reaches up to 84.50
meters.
 The GIS generated map shows that out of 54
villages only seven villages have mud road and
47 villages have paved road.
 Thus, GIS tool can be beneficial for getting all
the relevant information at the time of
occurrence of the disaster, and can help in
planning and management.

18. Case study 2
Objective
 Tsunami Risk Analysis and Disaster
Management by Using GIS
 Study area
Gocek bay area of south west turkey, which is
situated along the mediterranean sea

19. Data integration
 Most of the data obtained for the analysis is
obtained from ocean engineering research
centre(OERC)
 Namidance is a software used to study the
behavior of waves
 Namidance is also used to detect inundated areas
and tsunami simulation

20. Methodology
 Satellite image is acquired and DEM is prepared
with a scale of 1/25000 scale
 By using topographic maps, satellite image is
registered and then buildings and road layers are
digitized.
 Attribute information is given to the data base
based on the former reports
 Namidance software is used to find the
Bathymetry.

21. Namidance software
 Namidance is implemented by OERC
 It is based on long wave equations with respect
to related boundary conditions
 Among the long wave equations explicit
solution of non linear shallow water solution is
preferred
 The Bathymetry generated by OERC is given as
input with simulation duration of about 30 min
and a step of 0.1 sec
 Propagation of tsunami waves at every 0.1 sec
are given as output for every 60 sec

22.  In order to able to compare max positive and
negative amplitude , artificial guages are
arranged are placed at specific location of
Gocek
 By using this data inundation maps are prepared.
 Continuous surfaces are to be produced for
showing the flooded areas, this is done by
kriging method in spatial analyst tools.

23. SUMMARY
 The main outcomes of the study are determining the
inundated buildings and roads and calculating the
optimum routes to the closest facilities in case of
emergency
 Evacuation map and network analysis conducted for
the case of emergency is a guide map for the places
which should be evaluated for the rescue operation.
 Data are integrated with spatial data in order to
determine the optimum routes from inundation
zones to safe places, thus an evacuation plan was
assessed.

24. References
 .Abbas.S.H, Srivastava R.K and Tiwari R.P(2008), GIS-based
disaster management A case study for Allahabad Sadar sub-
district (India), Management of Environmental Quality: An
International Journal 2009, 33-51.
 Frank, A.U, Medyckyj.S and Hearnshaw. H (1993), “The use of
geographical information system: the user interface is the
system”, Human Factors in Geographical Information Systems,
Belhaven Press, London,(1993) Chapter 18.
 Levy. J.K., Gopalakrishnan. C and Lin. Z (2005), “Advances in
decision support systems for flood disaster management:
challenges and opportunities”, International Journal of Water
Resources Development, pp. 593-612.
 Maniruzzaman K.M., Okabe. A. and Asami. Y. (2001), “GIS for
cyclone disaster management in Bangladesh”, Geographical
and Environmental Modelling, pp. 123-31.

25.  Miller R.C., Guertin, D.P. and Heilman, P. (2004),
“Information technology in watershedmanagement decision
making”, Journal of the American Water Resources
Association, pp. 347-58.
 Mysiak J., Giupponib C. and Rosatoc P. (2005), “Towards
the development of a decision support system for water
resource management”, Environmental Modelling and
Software, pp. 203-14.
 Seda.S, Aykut.A, ZuhalA, Ahmet. C.Y (2011),Tsunami Risk
Analysis and Disaster Management by Using GIS, A Case
Study in Southwest Turkey, Gocek Bay Area, AGILE 2011
 Suresh, M.R., Manjunath K.V. and Hegde M.N. (2005),
“Earthquake hazards, preparedness, mitigation and
management issues”, in Proceedings of the National
Conference on Geotechnics in Environmental Protection,
Allahabad,

26. THANK YOU