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1. • Hundred years

     • This process, for most glaciers, takes over a hundred years.
     www.bbc.co.uk/bitesize/topics/zpcqxnb/articles/zdw8dp3

     Glacial process guide for KS3 geography students - BBC Bitesize

2. People also ask

   How did a trough valley form?

   • This geographical formation occurred primarily due to glacial erosion and also referred to as a trough valley or a glacial trough. U-shaped valley occurs typically in the V-shaped valley already existing. It takes 10,000 to 100,000 years by glaciers to flatten out the bottom of V-shaped valley and convert it into a U-shaped valley.

   U-shaped Valleys: Formation, Examples and Difference Between U-shap…

   eartheclipse.com/science/geology/u-shaped-valley.html

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   How does a glacial trough form?

   • Tour guide: That’s a good explanation, thank you. The formation of a glacial trough involves two processes abrasion and plucking. Abrasion is when pieces of debris in the glacier wear away at the rocks below, a bit like sandpaper. The sharper rocks in the ice can also cause scratches in the rocks called striations.

   Formation of a glacial trough - BBC

   www.bbc.co.uk/gcsebitesize/audio/geography/pdf/formation_of_a_glacial_trough.pdf

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   What causes a trough to form?

   • Rising Air: As the warmer, less dense air is forced to rise over the cooler, denser air, it creates a region of lower pressure—a trough—along the boundary. Atmospheric Disturbances: Other factors like the Earth’s rotation (Coriolis effect) and the presence of mountains can also influence trough formation by enhancing the lifting of air.

   Weather Troughs: Formations, Impacts, and Types - Climavision

   climavision.com/blog/weather-troughs-formations-impacts-and-types/

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   How deep is a trough valley?

   • These are thousands of feet deep and several miles in length. This geographical formation occurred primarily due to glacial erosion and also referred to as a trough valley or a glacial trough. U-shaped valley occurs typically in the V-shaped valley already existing.

   U-shaped Valleys: Formation, Examples and Difference Between U-shap…

   eartheclipse.com/science/geology/u-shaped-valley.html

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   What is a trough on a weather map?

   • They are typically associated with regions where the air is rising. As air rises within a trough, it can cool and condense, leading to cloud formation and potential precipitation. Troughs are often depicted on weather maps as elongated lines or contours of lower pressure. They are labeled with dashed lines.

   Weather Troughs: Formations, Impacts, and Types - Climavision

   climavision.com/blog/weather-troughs-formations-impacts-and-types/

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   What happens when air rises in a trough?

   • As air rises within a trough, it can cool and condense, leading to cloud formation and potential precipitation. Troughs are often depicted on weather maps as elongated lines or contours of lower pressure. They are labeled with dashed lines. There are two types of troughs, that each indicate a different weather pattern:

   Weather Troughs: Formations, Impacts, and Types - Climavision

   climavision.com/blog/weather-troughs-formations-impacts-and-types/

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3. www.bbc.co.uk › formation_of_a_glacial_troughFormation of a glacial trough - BBC

   www.bbc.co.uk › formation_of_a_glacial_trough

   The formation of a glacial trough involves two processes abrasion and plucking. Abrasion is when pieces of debris in the glacier wear away at the rocks below, a bit like sandpaper. The sharper...

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4. www.bbc.co.uk › bitesize › guidesGlacial processes and landforms - AQA Glacial landforms ... - BBC

   www.bbc.co.uk › bitesize › guides

   Learn about and revise glacial landforms and processes, including weathering, erosion, transportation and deposition, with GCSE Bitesize Geography (AQA).

5. www.bbc.co.uk › bitesize › topicsGlacial process guide for KS3 geography students - BBC Bitesize

   www.bbc.co.uk › bitesize › topics

   Glaciers are made up of snow that has built up over many years. The weight of the layers of snow become compressed into ice. This process, for most glaciers, takes over a hundred years.

6. Videos

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     9:41

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     How To Make a Log Watering Trough

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     Water Reading Part 3 Troughs

     15 Apr 2019

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     Weather School - Ridges & Troughs, what do they mean?

     11 Feb 2013

     38.9K views

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7. www.savemyexams.com › gcse › geographyGlacial Landforms: Troughs & Corries GCSE Geography Revision

   www.savemyexams.com › gcse › geography

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   Aug 9, 2024 · Corrie, cwm and cirques are all the same feature and are formed in hollows where snow can accumulate, usually on a north facing slope. In Wales corries are called cwms and in France they are called cirques. Formed when the glacial ice moves through gravity, rotational slip, and sheer mass of the ice.

8. en.wikipedia.org › wiki › U-shaped_valleyU-shaped valley - Wikipedia

   en.wikipedia.org › wiki › U-shaped_valley

   • Cached

   U-shaped valleys, also called trough valleys or glacial troughs, are formed by the process of glaciation. They are characteristic of mountain glaciation in particular. [1]

9. eartheclipse.com › science › geologyU-shaped Valleys: Formation, Examples and Difference Between ...

   eartheclipse.com › science › geology

   • Cached

   Formation of U-shaped Valleys. This geographical formation occurred primarily due to glacial erosion and also referred to as a trough valley or a glacial trough. U-shaped valley occurs typically in the V-shaped valley already existing.

10. climavision.com › blog › weather-troughs-formationsWeather Troughs: Formations, Impacts, and Types - Climavision

    climavision.com › blog › weather-troughs-formations

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    Oct 24, 2023 · In Summary: Weather Troughs: Elongated regions of low atmospheric pressure that lead to rising air, cloud formation, and potential precipitation. Trough Types: Positively tilted troughs are less likely to cause severe weather, while negatively tilted troughs are more associated with severe weather events.