1 / 13

Energy Budget

Energy Budget. The amount of energy arriving at the Earth and leaving the Earth must be in balance . If more energy arrives than leaves, the Earth will warm up over time. Types of Energy Transfer. Radiation  energy transfer through a vacuum

lyris
Download Presentation

Energy Budget

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Energy Budget • The amount of energy arriving at the Earth and leaving the Earth must be in balance. • If more energy arrivesthan leaves, the Earth will warm up over time.

  2. Types of Energy Transfer • Radiation  energy transfer through a vacuum • Conduction  Energy transfer by direct contact of particles • Convection  Energy Transfer through the movement of particles from one location to another

  3. Radiation • energy from the sun is radiatedto the Earth.

  4. Short-wavesolar radiation arrives from the sun and heats the land or water.

  5. Long waveinfra-red radiation from the ground heats the air above it

  6. Conduction • Very little effect on climate as conduction involves only shortdistance energy transfers

  7. Convection • Convection currents are caused by warm, less dense air risingand cooler, more dense air falling • On the ground, convection currents are seen as winds

  8. On a global scale, convection currents move energyfrom the equator towards the poles

  9. Ocean Convection Currents • Note here the movement is NOT just about moving heatfrom the Equator to the Poles • Europeis most affected by these currents.

  10. Ayr, Scotland 55oN latitude line Cape Henrietta Maria Both are on the coast, both are at 55oN Do they have a similar climate?

  11. Cape Henrietta Maria in May  notice the ice! Ayr, Scotland in May  notice the palm trees!

  12. Which type of Energy Transfer will be influenced by human activities? • Do human activities affect radiationfrom the sun? • Do human activities affect conductionthrough materials? • Do human activities affect convectionswinds? • Noto all of the above! • So how might humans affect climate? We’ll talk about human effects tomorrow!

More Related