a) Outline the conditions under which glaciers are likely to retreat (5)

The firn strain of credit of a glacier moving up the vale signifies that the glacier is retracting, and in time though this whitethorn presume base, it volition s manger print in the go bad down a valley. This retreat occurs when a glacier has a cast out mass residual, which is where its outputs, oftentimes(prenominal) as sublimation, calving, blow-off, be greater than its inputs such as snowfall and avalanches. gyp run seasonal prole fluctuations such as a decrease in snowfall would ring about a decrease in the take aim of accretion and an step-up in temperature would lead to an join on in ablation, as the high temperature would facilitate the melting of the ice. These changes are apt(predicate) to occur in the pass months and may bequeath in inputs falling and outputs increasing, leading to a negative budget. This would cause the firn line along with the glacier to retreat. However, retreat may also occur in the long run, such as in a post-glacial occlusive where global temperature increases are occurring. b)Examine the tint of retreating glaciers on the governing personify and modification of embellishs (20) When discussing the impacts of retreating glaciers, one must understand that glaciers are braggy and dynamic features that have a plethora of significant impacts on the surrounding adorn, which are decease in areas such as Iceland, and in much of the UK.

rimy retreat occurs when there is a negative mass balance brought on by gathering being surmounted by ablation. The effects of this are much pronounced when the retreat takes place over a longer-term due(p) to deglaciation, rather than just shirt-term seasonal changes. The retreat will government issue in the deposition of till by the glacier itself forming features such as moraines and drumlins and will also lead to fluvioglacial processes eroding the surrounding landscape and depositing debris. The importance of understanding these impacts is passing relevant for modern contemporaries due to the presence of general glacial recession occurring that has supposedly been accelerated...If you want to get a full essay, order it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper