"Lec 24 - Ice in the Climate System" The Atmosphere, the Ocean and Environmental Change (GG 140) Five types of ice in the climate system are discussed. Sea ice forms when ocean water reaches its freezing temperature of about -2°C. Sea ice is currently found in the Arctic Ocean and around Antarctica. Ice sheets form on land and are composed of compacted snow that has accumulated over time. Ice sheets spread over a land surface and can reach the ocean. If the ice continuity is maintained when the ice sheet reaches the ocean, the ice will float on the water and this is referred to as an ice shelf. Icebergs are large chunks of glaciers that break off into the ocean. They can become grounded in shallow water, but generally are moved by the wind and ocean currents. Mountain glaciers form on mountains and are typically found at high latitudes, but also occur near the equator at sufficiently high elevation. 00:00 - Chapter 1. Ice in the Climate System 01:16 - Chapter 2. Sea Ice 20:34 - Chapter 3. Ice Sheets 24:41 - Chapter 4. Ice Shelves 29:36 - Chapter 5. Icebergs 41:54 - Chapter 6. Mountain Glaciers Complete course materials are available at the Open Yale Courses website: http://oyc.yale.edu This course was recorded in Fall 2011.
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Tags: Lec 24 - Ice in the Climate System
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Lec 1 - Introduction to Atmospheres
Lec 2 - Retaining an Atmosphere
Lec 4 - Vertical Structure of the atmosphere; Residence Time
Lec 5 - Earth Systems Analysis (Tank Experiment)
Lec 6 - Greenhouse Effect, Habitability
Lec 9 - Water in the Atmosphere I
Lec 10 - Water in the Atmosphere II
Lec 11 - Clouds and Precipitation (cloud chamber experiment)
Lec 12 - Circulation of the Atmosphere (Exam I review)
Lec 13 - Global Climate and the Coriolis Force
Lec 14 - Coriolis Force and Storms
Lec 18 - Seasons and Climate Classification
Lec 19 - Ocean Bathymetry and Water Properties
Lec 20 - Ocean Water Density and Atmospheric Forcing
Lec 22 - Ocean Currents and Productivity
Lec 25 - Ice and climate change
Lec 26 - Isotope Evidence for Climate Change
Lec 28 - Global Warming (continued)
Lec 29 - Global Warming (continued)
Lec 30 - Climate Sensitivity and Human Population
Lec 31 - The Two Ozone Problems
Lec 33 - Energy Resources, Renewable Energy