Snow line, Alpine, Glaciers & Permafrost
![](https://cdn.britannica.com/12/139412-050-69401E03/Snow-line-elevations-valleys-Alps-Austria.jpg)
Snow line, the lower topographic limit of permanent snow cover. The snow line is an irregular line located along the ground surface where the accumulation of snowfall equals ablation (melting and evaporation). This line varies greatly in altitude and depends on several influences. On windward
![](https://www.encyclopedie-environnement.org/app/uploads/2017/05/glacier-debit-fleuve_couverture.jpg)
The impact of climate change on snow cover and Alpine glaciers
![](https://www.nps.gov/features/romo/feat0001/GlcBasics01.jpg)
Glaciers of Rocky Mountain National Park - Glacier Basics
![](https://scx2.b-cdn.net/gfx/news/2023/shrinking-arctic-glaci.jpg)
Research shows shrinking Arctic glaciers are unearthing a new source of methane
![](https://alaskabeacon.com/wp-content/uploads/2023/12/GettyImages-1126174000.jpg)
COP28: Earth's frozen zones are in trouble – we're already seeing
![](https://c8.alamy.com/comp/RC24WG/swiss-alps-due-to-the-global-climate-change-the-permafrost-and-glaciers-are-melting-like-here-on-parsenn-mountains-above-davos-city-RC24WG.jpg)
Swiss alps: Due to the global climate change the permafrost and glaciers are melting like here on Parsenn mountains above Davos City Stock Photo - Alamy
![](https://www.permos.ch/fileadmin/_processed_/4/b/csm_whereispermafrost_66eec68a26.jpg)
Home PERMOS – Swiss Permafrost Monitorinig Network
![](https://creamontblanc.org/images/visuel_changement_climatique_montagne_0.png)
Climate change and its impacts in the Alps
![](https://www.ctvnews.ca/polopoly_fs/1.6447725.1687221201!/httpImage/image.jpeg_gen/derivatives/landscape_1020/image.jpeg)
Himalayan glaciers could decrease by 80 per cent if global warming
![](https://www.wsl.ch/fileadmin/_processed_/c/4/csm_Findel3_klein_9b5f2204bb.jpg)
Climate change and… glaciers
![](https://c8.alamy.com/comp/F0H29R/polygons-permafrost-ground-signehamna-svalbard-norway-june-2008-F0H29R.jpg)
Permafrost landscapes hi-res stock photography and images - Alamy
![](https://cdn.britannica.com/12/139412-050-69401E03/Snow-line-elevations-valleys-Alps-Austria.jpg)
Snow line, Alpine, Glaciers & Permafrost
![](http://environmental-geology-dev.pressbooks.tru.ca/wp-content/uploads/sites/73/2021/07/overlord1.jpg)
4.2 How Glaciers Work – Environmental Geology