Monday, December 13, 2010

Fahad exam "Weather Satellites"



My example is weather satellite and I will be talking about its positive aspects for the whole society. The weather satellite is a type of satellite that is mainly used to monitor the weather and climate of the Earth.
There are two basic types of weather satellites. Satellites can be either polar orbiting, seeing the same swath of the Earth every 12 hours, or geostationary, floating over the same spot on Earth by orbiting over the equator while moving at the speed of the Earth's rotation.
These satellites, however, see more than clouds and cloud systems. City lights, fires, effects of pollution, sand and dust storms, snow cover, ice mapping, boundaries of ocean currents, energy flows, etc., and other types of environmental information are collected using weather satellites. Weather satellite images helped in monitoring the volcanic ash cloud from mountains from all different regions. Image satellite weather technology has been around a while. It has become very important to the great advances in weather forecasts. We can get planet temperatures, humidity pictures, cloud pictures and wind data from the satellite depictions. Weather can decide on what we do for the day. For example, if there is wet weather, we can stay indoors and read or play board games, or perhaps catch up with our old friends. When there is hot weather, we can go outside to play and enjoy the sunlight. People who fish for a living can find out valuable information about the temperature of the sea from measurements that satellites make.
Weather satellites are useful f or many reasons. Pollution whether it's nature-made or man-made can be pinpointed. The visual and infrared photos show effects of pollution from their respective areas over the entire earth. Aircraft and rocket pollution, as well as condensation trails, can also be spotted. Almost every summer, sand and dust from the Sahara Desert in Africa and other dust storms in Asia and mainland China are common and easy to spot and monitor, with the help of weather satellites.
In remote areas of the world with few local observers, fires could rage out of control for days or even weeks and consume millions of acres before authorities are alerted. Weather satellites can be a tremendous asset in such situations.
I feel that weather satellite technology relates to the concept of panopticism because satellites can be used for tacking places and people. Though the technology itself is nothing but a blessing for its users which helps those making decisions on weather related issues, but it also puts them on the surveillance.

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