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Ice ages and Global Warming

Ice ages and Global Warming

Ice ages and Global Warming. David Damm Greg McCormick. EAS 4610. Outline. Earth Temperature History Climate System Forcing and Response Ice sheet response Other feedbacks and responses Future climate. 3 Million yrs. Past 400k yrs. Past 10k yrs - Interglacial. Present Temperatures.

By Audrey
(583 views)


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Abrupt Climate Change in the Glacial-Interglacial Record

Abrupt Climate Change in the Glacial-Interglacial Record

Abrupt Climate Change in the Glacial-Interglacial Record. AOS 528, 11/27/07. Definitions of Abrupt. Large changes within less than a 30 year period Abrupt on human time scales (climatology), but… A transition or response that is rapid compared to the forcing. Relevant for any time scale

By evelyn (127 views)

Glacial Features

Glacial Features

Glacial Features. Your Name Your Homeroom. cirque. horn. fiord. arete. k ettle lake. k ettle lake. moraine. drumlin. glacial lake.

By shel (144 views)

Glacial Deposits

Glacial Deposits

Glacial Deposits. The specification states that you should be able to: Describe the deposition in glacial environments of boulder clay (till), varves , fluvio-glacial sands and gravels and explain the processes that formed them

By rey (116 views)

Glacial Processes

Glacial Processes

Glacial Processes. Glaciers are large masses of ice that move over time. On the basis of size and shape, glaciers can be divided into two types: Valley glaciers – Glaciers that flow down well defined stream valleys in mountainous regions.

By myrrh (144 views)

Glacial Budgets

Glacial Budgets

Glacial Budgets. The glacial budget or net balance. The glacial system showing inputs, stores, transfers & outputs. Inputs. Humid & cold. Ablation The process of wastage of snow or ice by melting, sublimation and calving.

By shilah (146 views)

Glacial Environments

Glacial Environments

Glacial Environments. EG1103 March 2003 Dawn Nicholson. Introduction. c. 10% Earth’s surface covered by ice today – but declining due to global warming In the past, % ice cover has been much higher (eg 30% c. 20,000BP) c. 96% glacier ice in Antarctic and Greenland ice caps.

By zilya (151 views)

Glacial geomorphology

Glacial geomorphology

Glacial geomorphology. Glacier: “a natural accumulation of ice that is in motion due to its own weight and slope of its surface” Ice cores Paleoclimate archive: high-resolution records of climate change Compared to deep sea core. Ice Age. Ice Age. Ice Age. Ice Age. 22°. 12°. 17°.

By kelsey-preston (253 views)

Glacial Features

Glacial Features

Glacial Features. Continental and Alpine. Continental Features. Continental Features: New York. Credit: NASA, Visible Earth. Drumlin schematic. Source: www.geography-site.co.uk. Drumlin: Bunker Hill. Esker, Kettles: Manitoba. Credit: Geological Survey of Canada. Alpine Features. Arete.

By luke (222 views)

Glacial Features

Glacial Features

Glacial Features. How Glaciers Re-Shape the Land. Weathering vs. Erosion What’s the difference?. Weathering = Breakdown of rock Erosion = Transport of sediments. …the rock surface below it gets scraped and weathered. As a glacier moves …. Rock.

By javier (361 views)

Glacial Material

Glacial Material

Glacial Material. small Till. Glacial Till. - Glacial Rocks - All different sizes and shapes – unsorted. LARGE Till. Features of Glacial Rocks Glacial Polish – smooth surface Striations - scratches. Moraines Hills of till at the side, middle, and end of glacier.

By sylvia (133 views)