Glaciers and Cold Environments notes
14 notes by 4 users
This GoConqr page gathers a small set of community-made notes on glacial erosion, permafrost and climate change. School students, university students and professional candidates can practice explaining cold-environment processes, while teachers can find material for lessons. The notes span school and university study. Choose a topic to begin.
Notes
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Lecture 4 core High arctic climates: low winter temp (-20 - -30) & perpetual darkness. Temp above freezing for 2-3 months of year, surface thaw 0.3-1.5m. Low precipitation ( In regions at the top end of precipitation (maritime), sno...
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GLACIAL PROCESSES & LANDSCAPES Climate Change & Glaciation ** Climate Change: * climate is dynamic, it doesn’t stay the same * there are daily, monthly & annual averages, SO * climate change is a significant change in these averages over hundreds o...
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French Ch. 5 Defining permafrost: Ground (soil/rock) remains remains at . Permafrost has both a thermal component and a state, It is not permanently frozen ground, rather ground held at Epigenetic Permafrost: normal ground subject...
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Younger Dryas Examine the evidence for abrupt climate change during the YD stadial and discuss possible mechanisms for this change. Discuss the major changes in climate during the YD stadial and examine their possible causes.Y...
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Lecture 1 - Introduction Periglacial environments can be cold wet or cold dry, generally alpine environments are wetter due to relief, and arctic environments are dry (arid). Permafrost, found in periglacial environments, soil/moisture that r...
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6 - Ice Wedges Ice Wedges: 25-30% of total ice volume, present in the uppermost 5-10m of permafrost. Develop in unconsolidated sediment, best form in lowland poorly drained tundra atop continuous permafrost. Involves deformation of ...
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12 - Pingo's & Palsas Palsas: Cryosuction: caused by negative pressure of freezing ground. Permafrost mound with a core of alternating segregation ice and peat/mineral soil compound. absence of snow allows further/deeper frost penetr...
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8 - Thermokarst Methane bubbling in Siberia: Ebullition accounts for 95% of methane emissions. N Siberian lakes are underlain by Yedoma - organically rich Loess deposits from late Pleistocene. Organic matter underlying thermokarst la...
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Snow and Slopes Patterned ground: Mostly forms in the active layer, some in seasonally frozen ground. Most common patterned groundforms are circles, hummocks and mud boils. Distinctive patterns due to ralative lack of vegetation. Mos...
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glacial erosion - created from Mind Map parte A: process glaciers form in hollows on the colder, sheltered side of a mountain these hollows are called corries snow and ice gathers in the hollow and over time the corrie gets larger by freece-thaw weathering....
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1_glacial erosion - created from Mind Map glaciers form in hollows on the colder, sheltered side of a mountain these hollows are called corries as a glacier glacier moves, it erodes the landscape into two ways: snow and ice gathers in the hollow and over time...
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Lecture 3 extra
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7a - additional reading Ploughing boulders are boulders that move down slope due to frost heave and thaw consolidation.Controls: Air temperature - inpacts the freezing of the ground and thermal regime. Snow cover - provides insulation leadin...
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7b - Soils and patterning Bedrock determines the nature of regolith's that form on the surface, this in turn influences the nature of the ;patterned ground found at the site.95% of features at the study site could be classified by surfac...
More Glaciers and Cold Environments resources
About glaciers and cold environments notes
GoConqr OriginalGlaciers and Cold Environments notes
These notes take different routes through the unit. Some focus on glacial erosion and landscapes; others examine periglacial climates, permafrost, ice wedges and thermokarst. Younger Dryas explores evidence for abrupt climate change, while Snow and Slopes includes notes on patterned ground.
Study with the notes
For an overview of cold ground, start with the introductory lecture note on periglacial environments. It introduces the contrast between cold wet and cold dry environments before turning to permafrost. You can then move to the note on ice wedges for a more focused example.
As you read, write a short explanation of each process in your own words. Return to the notes to check what you included. If you want a visual overview, switch to a mind map on the unit page; for a recall check, try its flashcards or quizzes. Open a note that matches your current topic and work from there.
Frequently asked questions
Which note should I start with?
The introductory lecture note on periglacial environments is a useful starting point for cold-ground topics. It discusses cold wet and cold dry environments and introduces permafrost. For a narrower topic, the note on ice wedges lets you focus on one feature of permafrost.
Do these notes cover glacial erosion as well as permafrost?
Yes. The page includes notes on glacial erosion and landscapes, alongside material on permafrost, ice wedges, thermokarst and patterned ground. There is also a note on the Younger Dryas that examines evidence for abrupt climate change and possible mechanisms behind it.
Are the notes free to use?
Yes. Every note listed here is free to open and study without an account. GoConqr users created the resources, so you can explore different notes on the same unit. A free account also lets you save quiz scores and make your own study resources.