Post on 12-Jan-2016
Ch. 3 NotesModels of the Earth
Latitude
Run east and west (left and right)
90° above equator, 90° below equator
Equator is at 0°
LatitudeA degrees is divided into 60 minutes (’) and minutes are divided into 60 seconds (”)
Helps determine a precise location
Like a precise time—3 hours, 2 minutes, 43 seconds
Washington, D.C., is located at 38°53’23”N
N is for north of equator
Longitude
Run north and south (up and down)
Longitude hint: Think long person!
Prime meridian is 0° longitude
Located in Greenwich, England
Also International Date Line
Longitude
180° east of prime meridian, 180° west of prime meridian
Like latitude, for longitude a degree is dividing into 60 minutes and 60 seconds
Washington, D.C. is 77°00’33”W
W means west of prime meridian
D.C’s full location is 38°53’23”N, 77°00’33”W
EXTRA CREDIT!Determine the latitude and longitude of your house
HINT: Use the Internet!Google Maps, maybe?
Include the degrees, minutes, seconds
Turn in tomorrow on piece of paper with your name, address, and latitude /longitude!
Remote Sensing
Satellites or airplanes capture images of Earth to help develop maps
Google Earth!
NASA
Maps can display other info, like temperature, moisture, plant life, etc.
Video – What is Remote Sensing?
Grand Canyon image from Landsat 7
Parts of MapDirection
Usually shown by a compass indicating N, S, E, W
LegendIndicates different symbols on map, what they stand for
Parts of MapMap Scale
Shows relationship between distance on map and actual distance
Ex. 1 inch = 1 mile
Different Types of Maps
Geologic mapsRegular maps that are color-coded to show different types of rock in the area
Soil mapsRegular maps that are color-coded to show different types of soil in that area
Helpful for agriculture!
Topographic MapShow elevation, height above sea level
Each line (contour interval) below represents another 10 meters in height as you move toward middle
Video – Topographic Maps