glaciers Flashcards
(11 cards)
π Environmental + Cultural Value of Glacial Landscapes
Some landscapes are sacred or culturally significant π:
* π§ Inuit storytelling around the North American tundra.
* π Himalayas are highly sacred to Nepalese people.
* π Tibetan Buddhists use prayer flags on mountains like Everest and on homes.
π§ͺ Environmental Research Value
- Polar research stations like British βHalley VIβ π are set up in Antarctica.
- Used to study π climatic and π oceanic processes.
- Helped model future climate change predictions.
πΏ Recreational Value of Glacial Landscapes
- Glaciers = Areas for outdoor adventure sports πΏπ
- Activities like hiking and climbing offer escape from stress π§β
βοΈ Economic Value: Mining
- Glacial areas rich in mineral resources (gold, silver, iron, lead, copper) π
- Mining = Big Economic Impact:
- Example: Alaskaβs mining industry was worth $2.9 billion in 2018 π°
π§³ Economic Value: Tourism
Stunning glacial scenery attracts millions! πΈ
* Example: Alaska attracted 2 million visitors per year π§³
* Famous sites: βοΈ Northern Lights, π Mountains, Wildlife
* Boosts economy by creating πΌ employment opportunities (creates seasonal unemployment).
* Resorts in places like the Alps = famous ski resorts πΏ can create litter
π Economic Value: Farming
Upland areas in glacial landscapes used for pastoral farming π
Example:
* Lake District National Park farmers maintain landscape beauty.
* 28% of the Lake District = common land designation πΎ
* Shared grazing rights!
β‘ Economic Value: Hydro-Electric Power (HEP)
Companies use glacial meltwater π§ to generate energy:
* E.g., Arctic Circle HEP schemes β‘
* Some HEP plants = over 80 GW of electricity in the Arctic!
* Examples in Nepal: micro-hydro systems give up to 100 kWh per day β‘
* Rivers with ribbon lakes are easy to dam π
π± Biodiversity in the Tundra
Tundra = harsh + cold π₯Ά β low biodiversity
Adaptations:
* πΏ Short growing seasons
* π¬ Adapted to strong winds
* Dominated by low level plants like grasses + mosses.
* Few mammals π¦ but Arctic hares, caribou, musk oxen survive!
common in russia and canada
π Importance of Biodiversity in Tundra
- Species may hold pharmaceutical value π in future
- Harsh conditions make surviving species very resilient π§¬
π§ Natural Systems: Water Cycle in Glacial Landscapes
- βοΈ Cryosphere stores 20% of worldβs water as ice.
- Meltwater replenishes drinking water in Alps, Andes π°
- Farmers use glacial meltwater for irrigation π
- Water cycle impacts:
- Snow and ice β‘οΈ rain patterns.
- Precipitation + meltwater affect rivers and lakes.
π§ Permafrost and Carbon Storage
- Permafrost = major carbon store π§
- Estimated 1500 gigatonnes of carbon frozen.
- Glacial areas also hold fossil fuels π¨ (e.g., under Canadian tundra).