Science 1206 Weather Unit Chapter 13 13 1
- Slides: 13
Science 1206 Weather Unit Chapter 13
13. 1 A Closer Look at the Earth • Read pp 498, 500503 • A Globe is a three dimensional model of the earth.
• . . . often tilted to represents the tilt of the earth’s axis with respect to the plane orbit.
Weather: • Set of environmental conditions encountered from day to day Climate • Set of environmental conditions averaged over many years Compare the climates of Ottawa and Halifax
Global Geography • Longitude is the angle measured east or west from the 0 o line which passes through Greenwich England. • This line is also known as the prime meridian.
• Latitude is the distance north or south of the equator measured in degrees.
Latitude and Longitude VIDEO
• The Tropic of Capricorn marks the most southerly latitude at which the sun can appear directly overhead at noon. • This event occurs at the December solstice when the southern hemisphere is tilted towards the sun to its maximum extent.
The Tropic of Cancer is the circle of latitude on the earth that marks the apparent position of the sun at the time of the northern solstice
The equatorial area between the tropic of Capricorn and the tropic of Cancer is known as the tropics
The Arctic Circle marks the southern extremity of the polar day and polar night. North of the Arctic Circle, the sun is above the horizon for 24 continuous hours once per year and below the horizon for 24 continuous hours once per year. On the Arctic Circle those events occur at the June and December solstices, respectively
UC p 503 1, 2, 5, 6, 7
