How is GPS used to analyze plate tectonics, volcanos and earthquakes?
209500
A GPS unit can track ground swelling (especially around active volcanoes).  It relays information about the position of the ground as it changes.\n\nA reading that changes is a definite indicator of change in the ground and could indicate earthquakes or erupions.\n\nAs for plate tectonics, it relays general continental motion (albeit in inches/year)
418456
1. Continental drift or plate tectonics.\n\n2. Horizontal fault line.
546182
Get a user name\nIt's free\nCan view Sky charts and satelites as well\nRegister your location
293432
Not real sure what you want to do, but, go here;\nhttp://quake.wr.usgs.gov/research/deformation/modeling/eqmodel.html
445238
go to\n\nhttp://earthquake.usgs.gov/\n\nits a great site - tell you when, where and how big
170146
this should help             http://earth.google.com/
255156
They use seismographs all around the world to see how earthquake vibrations move through the earth like giant sound waves. They can tell that there are different layers with different physical characteristics by the reflection and refraction of the seismic waves.\n\nThere are other methods to "see" inside the earth, but seismic exploration has been the most fruitful by far.
203573
You mean earthquakes?  Spelling it right is probably a good starting point.
292301
You can go the metorology route. I also have some friends that work for the forrest service that map their trails and do GPS style stuff. I would get comfortable with the common georaphy programs, if your not teaching, then its gonna be involving some computer work
111489
Yes because of GPS system
191117
see the flowing\n\nhttp://www.seismo.unr.edu/ftp/pub/louie/class/100/seismic-waves.html
579006
Plate tectonics (from the Greek word for "one who constructs and destroys", τεκτων, tektōn) is a theory of geology developed to explain the phenomenon of continental drift and is currently the theory accepted by the vast majority of scientists working in this area. In the theory of plate tectonics the outermost part of the Earth's interior is made up of two layers: the lithosphere comprising the crust and the solidified uppermost part of the mantle. Below the lithosphere lies the asthenosphere which comprises the inner viscous part of the mantle. The mantle behaves like a superheated and extremely viscous liquid.
210859
My guess is that they would still work-you would not get an accurate reading of your position though-what coordinate system or projection is space in? and the reading would have to bounce back into earth from a reading station and then back to the GPS units-\nWhich brings up another question? Would signals be lost in translation?\nI really don't know\nBut its gonna bother me.
289780
yea.. it's Helicorder Images, a way to record the earthquake in a given area.. even it is minimum. for reading of this, you need to do a bit study. surf the net, also go here:
35703
First question, yes.   GPS provides a location in three dimensional space, therefore your receiver can determine your elevation in relation to sea level if equipped (most are).  For best accuracy, you will need at least a 4 satellite position fix...with good satellite geometry (i.e. all the satellites are not lined up in a row in the sky).\n\nSecond question, in theory yes.   Technically, the answer is likely no.  The reason is that GPS signals are very weak by their nature and it requires a sensitive receiver to "hear" them.  While most receivers on the market today will be able to receive signals through tree leaves and other minor obstructions of the sky, the vast majority cannot not receive signals through concrete.  To demonstrate this, just take a walk with your GPS unit underneath an overpass and watch what happens to the signal strength.  \n\nIf you were measuring altitude inside, a barometric altimeter might be a better choice, though be wary of the building's ventilation system, as most are slightly pressurized and would affect this instrument as well.
247633
You can try DeLorme with the GPS or Microsoft Streets and Trips with GPS. I've tried them both and both have coordinates in real time
165359
It all depends on the accuracy you want. If you are trying to obtain first order work I would use differential leveling with a closed loop to check closure.\nTrigonometric leveling is only good for short distances and gps still has some accuracy problem. However, it you in the middle of nowhere (desert, natural wilderness) then you should consider gps. \nBut as I mentioned before, for the best results, highest order, and if you are in an urban setting I’d go for differential leveling with a closed loop to check closure.