role of satellite communication in disaster management

by Guest8032716  |  11 years, 4 month(s) ago

0 LIKES UnLike

role of satellite communication in disaster management

 Tags: communication, disaster, management, role, Satellite



  1. Guest22732925

    both are fools

  2. Guest20681196
    The uses of satellites in disaster management are becoming more integral to reducing reaction time and providing accurate information to rescue and disaster control operations. Satellites are used in disasters for communications, remote sensing and mapping. Meteorological and storm warning satellite technology can help with predicting disasters and setting up precautionary activities. U.S. Landsat Earth-observation satellites collect data in conjunction with NASA and the Department of the Interior's U.S. Geological Survey (USGS) to forecast weather-related disasters, manage floods, monitor large fires and determine which areas are at risk for landslides. They can analyze climate changes and map areas for relief operations with the data collected from the satellites
  3. Guest19491584
  4. Guest19491584
  5. Guest18336129
    Communications provide the critical path for relief in emergency and disaster situations. Communications connect and help move logistical, rescue and first responder resources in any region of the world facing or recovering from natural or man-made disasters. Deploying wireless communications is typically among the first priorities in any emergency response, rescue, or relief situation. However, terrestrial wireless equipment (cellular phones or land mobile radios) is only useful when communications towers and other fixed equipment are in place to connect wireless equipment to the local and global communications backbone. In the majority of emergency situations, this infrastructure has either been destroyed by the disaster (e.g. New Orleans after Hurricane Katrina) or was not available before the disaster (e.g. the earthquake in Pakistan). This reality makes it critical for local government and emergency workers to have access to a wireless communications network that is not dependant on terrestrial infrastructure. Satellite communications provide such a solution. Satellites are the only wireless communications infrastructure that is not susceptible to damage from disasters, because the main repeaters sending and receiving signals (the satellite spacecraft) are located outside the Earth’s atmosphere. Users today have two kinds of satellite communications networks available to support emergency response activities: geostationary satellite systems (GEO) and low Earth orbit satellites (LEO). Geostationary (GEO) satellites are located 36,000 km above the Earth in a fixed position and provide service to a country or a region covering up to one third of the globe. They are capable of providing a full range of communications services, including voice, video and broadband data. These satellites operate with ground equipment ranging from very large fixed gateway antennas down to mobile terminals the size of a cellular phone. There are currently almost 300 commercial GEO satellites in orbit operated by global, regional and national satellite carriers. Even before disasters strike, these networks are used in many countries to provide seismic and floodsensing data to government agencies to enable early warning of an impending situation. Also, they 2 broadcast disaster-warning notices and facilitate general communication and information flow between government agencies, relief organizations and the public. LEO satellites operate in orbits between 780 km and 1,500 km (depending on the system) and provide voice and low speed data communications. These satellites can operate with handheld units about the size of a large cellular phone. As with handheld terminals that rely upon GEO satellites, the highly portable nature of LEO-based units makes them another valuable satellite solution for first responders in the field. In order to most effectively utilize the capabilities of these systems, government agencies, relief organizations and other first responders must define as far in advance as possible what kind of terminals they will need to have in the field before and after an emergency.
  6. Guest15201646
    wheres the answer?
  7. Guest14642554
  8. Guest14460181
    to help others
  9. Guest14034900
  10. Guest12466660
  11. Guest11810075
    The one who calls others a fool is the greatest "FOOL"
  12. Guest11544889
    you are the biggest fool since ever. read books and get the answer.
  13. Guest8121155
    where is the answer to the above topic. please tell me

Question Stats

Latest activity: 9 years, 8 month(s) ago.
This question has been viewed 5394 times and has 13 answers.

2 People are following this question



Share your knowledge and help people by answering questions.