geology study of the earth, its systems and processes
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Geology Study of the Earth, its systems and processes
Together, latitude and longitude can be used as a geographic coordinate system to specify any location on the globe.
Latitude-AKA Parallels (90N to 90S)
- drawn East & West, but are counted North & South.
- “climb the latitude ladder”
- Equator = 0, Poles = 90
- SAHS is located at 40°17'53"N
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Longitude-AKA Meridians(0 to 180)
- drawn North & South, but are counted East & West.
- Prime Meridian = Greenwich, Eng = 0- 180 = Int’l Date Line
- the Earth rotates 15 of longitude every hour, therefore, it takes 24 hours for the Earth to rotate 360.
- SAHS is located at 75°21'20W
The Earth can then be segmented into hemispheres:
Northern hemisphere
Southern hemisphere
Western hemisphere
Eastern hemisphere
• There are 60 minutes in a degree• There are 60 seconds in a minute
Minutes and seconds are used for finer measurements
SAHS is located at the coordinates: 40°17'53"N, 75°21'20W
GPS – Global Positioning System
Using triangulation, a GPS receiver is able to calculate PTEDS" on earth
positiontime
elevationdirection
speed
A space based global positioning system that provides reliable location and time information in all weather anywhere on Earth when 3 or more GPS satellites are within sight.
It is operated by the US government and available free to anyone with a GPS receiver .
Create a GEOCACHE
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