The Global Positioning System, or GPS, is a global network of satellites that enables users to determine their location and determine where they are located. The system was initially developed and controlled by the U.S. Department of Defense. Today it is used almost everywhere by commercial, governmental, and personal users for a wide variety of purposes. Users can track their location, track other things such as cars, planes, and boats, search for things like public records and other topics, get a clearer picture of the sky, and locate almost anyone at any time. This article will discuss how the Global Positioning System (GPS) works.
The GPS launched into space in 1998 by the U.S. Department of Defense. The GPS was initially developed to track the speed and direction of objects on earth. Over time it has expanded to become a global navigation/autical tool that includes things like weather forecasts, severe weather tracking, global positioning systems, etc. The U.S. Federal Aviation Administration and the U.S. Department of Transportation are the legal entities that operate and maintain the database of GPS signals. It also receives data from all parts of the globe and transmits this data to the ground control center, where it is used for a variety of purposes.
Basically, the GPS is a tracking device that uses the orbit of the earth to determine the position of a tracking device placed on the earth. If you were wondering how the GPS actually worked, the GPS goes satellites provide precise timing to determine the precise location of a tracking device. Now, if you want to know how the GPS goes satellites provide this service. Basically, the GPS goes satellites provide this service to the earth as they orbit the earth.
The GPS goes satellites can be found on every continent on earth except Antarctica and South America. There is one major problem with the GPS; it cannot determine the precise location of a stationary satellite in geostationary orbit, which is also known as the geostationary operational environmental satellite tracking system or GOS. This system was started by the U.S. Department of Defense, which has since then was transferred to the NWS (National Weather Service). The problem is that the GPS goes satellites can not determine the location of a fixed satellite in geostationary orbit. They only determine the rotational speed of the earth, which is not the same thing that an NWS or weather forecasting center would be able to determine.
With that information, you could say that the GPS is not really effective as a weather forecasting tool. But the NWS still uses the GPS system to provide severe weather reports, giving us an overall weather outlook. Now since the GOS tracking is done by the US military, there are some problems. The US military likes to keep things secret, thus they do not want the general public to know about the GOS. Some people have decried the GOS as well for being ineffective, but others have claimed that since the military has access to the information, they have no need for it and thus it is no big deal.
The question on how effective the GPS is in weather forecasts is something that scientists are trying to resolve. Currently there are some weather forecasts products out there that use the GOS, but none of them have been tested in space. If they were, then they would be used by the military and not by private individuals. If you are interested in getting better weather forecasts, then you should look into getting a technology that is able to measure the soil vapor, clouds, gravity, solar flux, atmosphere pressure, and changes in the atmosphere at various altitudes in geostationary orbit. This is what an image is, a small satellite that would be launched to gather data on the atmosphere of the earth, which would be transmitted back to a ground station by way of radio transmissions.