our corner of the universe
Download
Skip this Video
Download Presentation
Our Corner of the Universe

Loading in 2 Seconds...

play fullscreen
1 / 16

Our Corner of the Universe - PowerPoint PPT Presentation


  • 115 Views
  • Uploaded on

Our Corner of the Universe. 100 mil ly. 5 mil ly. Our Neighborhood. Earth’s rotation, orbit and the seasons. Only 50\% of the Earth’s surface can be “lit” by the sun Because the Earth’s axis is tilted the area covered by this 50\% varies throughout the year. Most important variables.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Our Corner of the Universe' - lukas


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
our corner of the universe
Our Corner of the Universe

100 mil ly

5 mil ly

earth s rotation orbit and the seasons
Earth’s rotation, orbit and the seasons
  • Only 50% of the Earth’s surface can be “lit” by the sun
  • Because the Earth’s axis is tilted the area covered by this 50% varies throughout the year
most important variables
Most important variables
  • Earth’s orbit is 365.25 days long
  • Earth’s axis of rotation tilts 23.5° from the perpendicular
    • These two variables account for the seasonal changes in weather patterns that we observe in a given year
we have four seasons why
We have four seasons: why?

The Earth’s axis of rotation is tilted at 23.5° from the perpendicular

latitude
Latitude
  • Affects the amount of insolation received at the Earth’s surface
  • The subsolar point(at right angles to the plane of the ecliptic) receives most insolation
    • Insolation decreases north and south of this point
  • The subsolar point migrates from 23.5°N in the summer to 23.5°S in the winter
milankovitch cycles
MILANKOVITCH CYCLES
  • ACCOUNTS FOR PERIODIC GLACIATION OF EARTH
ad