8 September 2016


 September 8, 2016
Category GIS Services

GIS in Disaster Mapping


Geographical Information System (GIS) means the system designed to capture, store, check and display the geographical data. GIS is a data management tool useful also to understand and identify the natural hazards. A disaster indicates an exceptional event that causes harm to many people in many ways. Disaster events may be earthquakes, floods, windstorms, plane crashes, fires and so on. GIS is used in a very broad area. The use of GIS in disaster mapping is one of the effective ways to monitor and mitigate the damage to the devastated area. GIS helps to analyze the information stored and to transmit the information on the geographical region so that the necessary steps can be taken for the disaster management. GIS uses satellite images and aerial photographs for searching and rescuing operations.



After Earthquake Views from Nepal

Uses of GIS in disaster mapping

The use of GIS in disaster mapping includes informing the policy holders about disaster events. The use of GIS in disaster mapping helps the administrators to widen their area of intervention and to cooperate with people in the case of disaster. Only a limited number of people has the ability and the knowledge to deal with the complex problems created by a disaster

  1. GIS in disaster mapping helps to find the areas with the highest concentration of disaster events like floods, landslides, earthquakes, hurricanes, windstorms, wild fires, chemical releases etc.
  2. It forecasts the extent of the territories affected by the disaster events. It specifies the assets which are exposed to actual hazards. It reviews and alters the policy value to minimize disaster events.
  3. The areas susceptible of disasters are analyzed on the basis of past and present geographical or spatial data thus giving help to the population in the moment of need.
  4. GIS helps to instruct and provide services like alternative roadways if they are blocked or damaged, connections of power line and communications, observation of damaged building and other physical hazards.
  5. The use of GIS in disaster mapping cooperates with people by helping them to minimize effects of disaster events and predicting the upcoming ones. The use of GIS in disaster mapping encourages intelligence to quickly response in order to minimize the effects of a disaster event.
  6. It is extended to remote places where people are informed with mobile and wireless services. The use of GIS in disaster mapping creates a perfect 3D network scientific data model.
  7. With the help of Online Disaster Response Community (ODRC), communities get to know about disasters and are encouraged to participate in disaster relief programs. Actually, people use sensors which can detect and respond to disaster events. ODRC is becoming very important due to the development of GIS.
  8. Internet GIS is becoming very popular to reduce disaster events.
  9. The use of GIS in disaster mapping has helped people to be informed and warned about disaster events. It encourages people to do future research in disaster events.

Due to cooperation of remote sensing with GIS, it is easy to manage disaster events. Mapping is the preliminary method to know the significant features of the surfaces of the Earth. But GIS is more than mere mapping. The use of GIS in disaster mapping aids many sectors to reduce the disaster effects.

GIS in disaster mapping in Nepal

GIS is also working in many fields in Nepal. GIS helps in the identification of the area of landslides, floodings and earthquakes. It then provides the necessary steps to overcome the problem. One of the major tasks solved by this technique is the hazard of the earthquake which took place in 25th April, 2015. It was the most unfortunate day for Nepalese people because a terrible earthquake of 7.8 magnitudes hit the land of Nepal. Many lives were lost and many infrastructures were destroyed with the loss of many houses and properties of Nepalese people. In those time GIS was active to find the people in devastated areas, relieving many people. Recently, GIS in disaster mapping has been working to know the causes of earthquakes and is helping to increase relief programs to the people in the affected areas. In Nepal, the use of GIS in disaster mapping has helped people to know humanitarian snapshot, shelter cluster activity, wash cluster activity etc.

GIS Network for Disaster Mapping

GIS allows identifying and implementing the emergence programs in many disastrous events. The use of GIS in disaster mapping is being advanced with the help of the latest technologies. So, in the future, the use of GIS in disaster mapping will help to reveal many facts about disaster events. Thus, GIS is a reliable, precise and economic technique for observing accurate data useful for the resource management.  It is an efficient way to display the information about the resources. Gis Network at Thakur International has international expertise for mapping, digitizing, modelling, project implementation in the field of Disaster.

Call us: 01-4390807, Or,  Email: info@gis.net.np

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