Solar Energy - Solar Energy Chapter 2, Earth Science •...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Solar Energy Chapter 2 Plane of the ecliptic • 23.5 degree angle from the North Pole • Points towards the star Polaris • 23.5 degrees from the equator • Always parallel to itself as it revolves the sun… this causes seasons • “direct ray” has annually 2.5 times more energy than the poles… located at the equator… the energy diffuses as it heads towards the poles “oblique” • June 21 st “Summer Solstice” is when the sun directly hits the tropic of cancer. . Effects the number of daylight hours. Earth Science Solar Energy Chapter 2, Earth Science
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
• Circle of illumination separates daylight from darkness… and on June 21 st night does not touch the arctic circle and never leaves the antarctic circle. • September 21 st “Autumnal Equinox”… everyone has the same number of daylight and nighttime hours Earth Science
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Solar Energy Chapter 2, Earth Science • December 22 “Winter Solstice” the opposite of the summer solstice. Antarctic always sunny, arctic always dark. • Get lots of agriculture from South America because it is their summer season during our winter. • March 21 st “Vernal Equinox”… the same as Autumnal Equinox Global Temperature changes • The polaris wobbles every 100 thousand years or so…. Explains the ice age • 150 years ago “little ice age”… lasted around 300 years • “malikovitch cycle” • 18,000 years ago, the coastline was much further than it is today… if the current trend of glacier melting continues, the coastline will move up to the memphis area…. We May have to relocate a lot of people. Earth Science Solar Energy Chapter 2, Earth Science...
View Full Document

This note was uploaded on 08/18/2008 for the course GEOG 1710 taught by Professor Byers during the Spring '08 term at North Texas.

Page1 / 3

Solar Energy - Solar Energy Chapter 2, Earth Science •...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online