Latitude/ Longitude
What is the latitude/longitude
Finding Locations on Earth Latitude- distance north or south parallel from the equator (degrees) Run east and west Longitude- angular distance east or west from the prime meridian (degrees) Run north and south
Units 1) Degrees, minutes, seconds I. Degree= =contains 60 parts (minute ) II. Minute= = 1.58km
latitude How far north or south the position is along the line of latitude in relation to the equator Globe- spherical- 360 degrees Distance from equator to north or south pole is ¼
longitude
Distance between the Meridian Are all distances the same?
Great circles What are they? Navigation device splits the glob up by circumference. It is the shortest distance of travel from point A to point B (like a hypotenuse of a triangle, however the globe is 3d)
Finding direction Devices? Explain
Magnetic declination Magnetic declination- declination (measured in degrees) east or west of the northpole direction in which a needle of a compass points
Magnetic declination
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Making Maps How do you propose scientists make accurate images of a 3d object 2d?
Cartography- science of making maps Scientist- cartographer
Remote sensing Uses satellites or air planes to gather data about the earth surface which is then used to create images gc4a8xY gc4a8xY
Map projections - flat map representation of the 3 dimensional surface of the earth Cylindrical, azimuthal, conic
Cylindrical Imagine wrapping a piece of graph paper around the world, tracing the oceans, continents, great rivers, parallels and meridians. What problems could arise?
Cylindrical Meridians are straight Parallels have an equal amount of space in between them
Thoughts on cylindrical maps?
Cylindrical maps ARE NOT ACCURATE The meridians come together at the poles This distorts continents close to the poles Look at the maps again at look at Russia or Antarctica or Africa
Azimuthal Projections Consider placing a piece of paper on top of the globe, so that it touches the earth at one point. What would the lines of longitude and latitude look like? What would the continents look like?