Application Of GPS To Disaster Management Information Technology Essay

Application Of GPS To Disaster Management Information Technology Essay GPS is particularly useful during disasters because it operates in any weather, anywhere and at all times. While it functions simply to give the location of the receiver, the level of precision of GPS makes it quite useful in disaster management. GPS find its greatest utility during the response and recovery phases; however it can also be utilized during preparedness and mitigation phases. An important application of GPS in EDM is tracking of emergency vehicles or supplies. In this application the GPS receiver attached to the vehicle and the location is overlaid onto a map. Other applications include the monitoring the height of waves. GPS units are fixed to buoys and the height of the units are can be determined to within centimetres any significant change in wave height or velocity can trigger an alarm for a tsunami or sea surge. Volcanoes can also be monitored using GPS. By measuring the deformation of the ground, inferences about volcanic activity can be made. Remote Sensing and Flooding Flooding is one of the most frequently occurring hazards. With flooding comes the risk of damage or disruption to normal living including communication, transportation, the environment and infrastructure. Given the magnitude of disruption that can take place, it may be difficult for disaster managers to gain access to remote areas or areas that have been cut off as a result of the disaster. Remote sensing as a technological tool would greatly assist this process as it would allow users of the technology the opportunity to view what is taking place in an affected area, without jeopardizing the safety of the user, since they will not actually be at the site. It is always going to be difficult, if not impossible, for planners to identify all the areas likely to experience flooding in any location. The use of technology however, in determining flood potential could highlight features of the geography that could make the community susceptible to the hazard. Types of flooding su ch as flash flooding, which usually take place in a relatively short time, with little or no warning could prove potentially dangerous for disaster managers if they attempt to physically go into an area that has been experiencing continuous rainfall. While the task of providing assistance to victims is critical and time dependent, a physical presence in the affected area could increase the persons at risk. Using remote technology however, would allow response workers to stay away from danger zones while at the same time gather pertinent information to facilitate timely response, rescue and relief efforts. Floodplain mapping is a useful indication of flood possibilities in an area and remote sensing can aid the process of identifying flood plains. The technology would generate satellite imagery of the area in question, which would allow for proper planning and timely rescue efforts should the need arise. The detailed photography produced from remote sensing provides accurate informat ion and can restrict efforts to the affected area. Other characteristics that could be identified about a geographic region using remote sensing include land-use classification, historical data, soil coverage, and soil moisture.