Impacts of light-absorbing particles on the energy balance of Icelandic glaciers ...

<!--!introduction!--> During the melting season absorbed solar radiation is the governing energy source for surface-melt on glaciers in Iceland. Many of the desert areas near glaciers (e.g., glacio-fluvial plains, beached and sand plains, defined as dust hot spots) have unstable surfaces and a...

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Bibliographic Details
Main Authors: Gunnarsson, Andri, Pálsson, Finnur, Gardarsson, Sigurdur
Format: Article in Journal/Newspaper
Language:unknown
Published: GFZ German Research Centre for Geosciences 2023
Subjects:
Online Access:https://dx.doi.org/10.57757/iugg23-0962
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016490
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Summary:<!--!introduction!--> During the melting season absorbed solar radiation is the governing energy source for surface-melt on glaciers in Iceland. Many of the desert areas near glaciers (e.g., glacio-fluvial plains, beached and sand plains, defined as dust hot spots) have unstable surfaces and are prone to dust aerosol production that can deposit in snow and glacier surfaces influencing the surface albedo and thus the radiative energy absorption. Volcanic ash and tephra fallouts on snow- and ice-covered surfaces can enhance melt or, if the ash layer is thick enough, providing isolation, reducing melt significantly due to isolation. Surface energy balance models generally do not simulate processes affected by Light Absorbing Particle (LAP) depositions, as they are often complex to describe and can originate from sources far away from glaciated surfaces. An energy balance model was developed with the possibility to utilize spatiotemporal albedo products developed from daily MODIS data driven by ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...