What is Remote Sensing and Geographic Information System

What is Remote Sensing and Geographic Information System 

  Significant progress has been made in the field of remote sensing technology in the last few decades.  Along with the development in satellite system technology, remote sensing has become a major means of obtaining information about the Earth's environment and events happening on the surface. 

 Its use is increasing rapidly in various fields.  With the use of this technique, information on surface events can be obtained quickly, due to the difficulty of remote sensing, it has become very easy to evaluate the regional expansion and impact of the events and changes occurring on the environment and the surface.  The biggest feature of remote sensing is that with its use, spatial and temporal changes can be easily assessed, thus it is possible to accurately assess the nature of the variable nature and its effect.

 Management -

              Disaster Management Volcanoes, floods, droughts, cyclones, earthquakes, etc., cause extensive loss of money and people.  Disaster management means reducing the impact of disaster and carrying out relief and rehabilitation work according to the disaster situation in the disaster-prone areas so that the loss of money can be reduced.  It is not possible to prevent the events and changes that occur in the environment and on the surface, but it is possible to reduce the impact of the disaster. 

 For successful disaster management, disaster mitigation is essential for the forecast of the disaster situation, efforts to save people in the disaster-prone area. The impact of catastrophic events can be minimized by prompt relief and rescue. 

 Remote sensing and geographic information systems are very useful in the field of disaster management.  With the use of remote sensing technology, instant information about events can be obtained.  It provides useful information to mitigate the effects of cyclones, cyclones, droughts, floods, and landslides.  With its use, the forecast of the disaster situation, relief, and rescue work can be done, as well as the impact of the disaster can also be reduced.  The impact of the disaster can be reduced by forecasting the disaster situation. 

     Disaster situations can be predicted using remote sensing.  People are alerted by prior information or early warning of a possible disaster and can do rescue work at their own level.  With the use of remote sensing and geographic information systems, forecasting potential disasters and their potential impact can be done.  By getting the right information about these topics, preparations can be made to deal with the disaster.

                     The use of remote sensing and geographic information systems helps in preparing emergency plans and evacuation plans from the potential area.  With this, the use of remote sensing and geographic information system is used to assess the impact in the affected areas in case of disaster, helps in relief and rescue work.  “Real-Time Information” makes it possible to evaluate the impact of a disaster, using these techniques, information about temporal transport can also be obtained.

 This also gives information about the recurrence of disaster.  From this point of view, the last step is the work of disaster relief and rehabilitation, the work of relief and rehabilitation can be done effectively according to the situation of the disaster with the use of geographical information systems in the disaster-prone area.