L07-Atmos-Surf-Energy-Budget

L07-Atmos-Surf-Energy-Budget - Natural Environments: The...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Outline Further Reading: Chapter 04 of the text book - matter-energy interactions - shortwave radiation balance - longwave radiation balance Natural Environments: The Atmosphere GE 101 – Spring 2011 Boston University Myneni Lecture 07: Atmosphere-Surface-Energy-Budget Feb-04-11 (1 of 12) - global radiation balance
Background image of page 1

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

View Full DocumentRight Arrow Icon
Introduction Natural Environments: The Atmosphere GE 101 – Spring 2011 Boston University Myneni Lecture 07: Atmosphere-Surface-Energy-Budget Feb-04-11 (2 of 12) Previously, we learned about Insolation (a) Daily and Annual patterns in incident radiation (b) Latitudinal climate zones Composition of the Atmosphere (a) Evolution (b) Current composition (c) State variables Today, we begin by looking at the fate, transformations, and exchanges of absorbed radiation within system To do this we begin to look at how radiation interacts with matter Ok, but what is radiation?
Background image of page 2
What is Light? When an electron moves from a distant orbit to a closer orbit, the electron must eliminate some of its energy. The energy released is partly electrical in nature and partly magnetic. This excess energy is released by the electron in the form of an energy packet known as a photon . A photon is an energy particle that has no mass and moves at high speed . When a moving photon interacts with matter, it does so as a wave, like a wave moving across the surface of water. These waves are known as electromagnetic waves because they display both electrical and magnetic components.
Background image of page 3

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

View Full DocumentRight Arrow Icon
Interaction of Radiation with Matter
Background image of page 4
Natural Environments: The Atmosphere GE 101 – Spring 2011 Boston University Myneni Lecture 07: Atmosphere-Surface-Energy-Budget Feb-04-11 (3 of 12) Radiation and Matter Absorption: Radiation is absorbed by matter (liquids and gases) in the atmosphere Leads to heating Transmission: Radiation passes through the atmosphere and does not interact with matter
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 05/09/2011.

Page1 / 16

L07-Atmos-Surf-Energy-Budget - Natural Environments: The...

This preview shows document pages 1 - 6. Sign up to view the full document.

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