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.
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
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 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 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.
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