Lec 26 - Isotope Evidence for Climate Change
"Lec 26 - Isotope Evidence for Climate Change" The Atmosphere, the Ocean and Environmental Change (GG 140) Isotopes are used to measure past climate properties. Deuterium and oxygen 18 are the most commonly used climate proxies. Lighter isotopes evaporate more readily from the ocean, so water vapor in the atmosphere is isotopically lighter than ocean water. This vapor gets lighter still as it is transported to higher latitudes while losing mass by precipitation. These processes leave an isotopic signal of temperature and continental ice volume in ice cores and deep sea sediment cores. 00:00 - Chapter 1. Stable Isotopes of Water 09:48 - Chapter 2. Isotope Delta Notation 11:41 - Chapter 3. Isotopic Fractionation 18:08 - Chapter 4. Water Isotopes in Ice Cores 31:14 - Chapter 5. Terrestrial and Deep Sea Sediments 33:44 - Chapter 6. Oxygen Isotopes in Ocean Sediment Cores 44:08 - Chapter 7. Milankovitch Theory of Ice Ages 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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Channels: Environmental engineering
Tags: Lec 26 - Isotope Evidence for Climate Change
Uploaded by: yaleatmoocenchng ( Send Message ) on 13-09-2012.
Duration: 47m 23s
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Lecture list for this course
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 24 - Ice in the Climate System
Lec 25 - Ice and 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