Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap
Current climate warming has a disproportionally large impact on Arctic glaciers and ice caps. In this thesis, I examined stratigraphic changes observed in the top ~15 m of two Arctic ice caps: one located at Svalbard (Lomonosovfonna) and the eastern Canadian Arctic Archipelago (Penny). The objective...
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Uppsala universitet, Institutionen för geovetenskaper
2014
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ftuppsalauniv:oai:DiVA.org:uu-226239 2023-05-15T14:28:52+02:00 Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap Winander Schönning, Christoffer 2014 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226239 eng eng Uppsala universitet, Institutionen för geovetenskaper Självständigt arbete 90 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226239 info:eu-repo/semantics/openAccess Physical Geography Naturgeografi Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Student thesis info:eu-repo/semantics/bachelorThesis text 2014 ftuppsalauniv 2023-02-23T21:58:49Z Current climate warming has a disproportionally large impact on Arctic glaciers and ice caps. In this thesis, I examined stratigraphic changes observed in the top ~15 m of two Arctic ice caps: one located at Svalbard (Lomonosovfonna) and the eastern Canadian Arctic Archipelago (Penny). The objective was to find out if and how the increasing regional temperatures have impacted the stratigraphy and densification rates of these ice caps, and particularly since the 1990s when Arctic warming accelerated. This was accomplished by analyzing and comparing recent (2000s) and earlier (1990s) ice-core density and stratigraphic measurements from these two ice caps, and also regional temperature data from Svalbard and the eastern Canadian Arctic over the period 1995-2013. Data over the amount and thickness of ice layers in the ice cores are also used and compared with the density development. A decrease in elevation for the formation of infiltration ice layers at Lomonsovfonna is concluded as well as a strong increase in temperature where the winter temperatures increase the most. In the ice cores it ́s also seen that each core has certain spatial variability when it comes to the distribution of infiltration ice. Bachelor Thesis Arctic Archipelago Arctic Canadian Arctic Archipelago Ice cap ice core Penny Ice Cap Svalbard Uppsala University: Publications (DiVA) Arctic Canadian Arctic Archipelago Lomonosovfonna ENVELOPE(17.663,17.663,78.774,78.774) Penny Ice Cap ENVELOPE(-66.214,-66.214,67.284,67.284) Svalbard |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Physical Geography Naturgeografi Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
spellingShingle |
Physical Geography Naturgeografi Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Winander Schönning, Christoffer Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap |
topic_facet |
Physical Geography Naturgeografi Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
description |
Current climate warming has a disproportionally large impact on Arctic glaciers and ice caps. In this thesis, I examined stratigraphic changes observed in the top ~15 m of two Arctic ice caps: one located at Svalbard (Lomonosovfonna) and the eastern Canadian Arctic Archipelago (Penny). The objective was to find out if and how the increasing regional temperatures have impacted the stratigraphy and densification rates of these ice caps, and particularly since the 1990s when Arctic warming accelerated. This was accomplished by analyzing and comparing recent (2000s) and earlier (1990s) ice-core density and stratigraphic measurements from these two ice caps, and also regional temperature data from Svalbard and the eastern Canadian Arctic over the period 1995-2013. Data over the amount and thickness of ice layers in the ice cores are also used and compared with the density development. A decrease in elevation for the formation of infiltration ice layers at Lomonsovfonna is concluded as well as a strong increase in temperature where the winter temperatures increase the most. In the ice cores it ́s also seen that each core has certain spatial variability when it comes to the distribution of infiltration ice. |
format |
Bachelor Thesis |
author |
Winander Schönning, Christoffer |
author_facet |
Winander Schönning, Christoffer |
author_sort |
Winander Schönning, Christoffer |
title |
Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap |
title_short |
Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap |
title_full |
Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap |
title_fullStr |
Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap |
title_full_unstemmed |
Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap |
title_sort |
recent climate warming impact on the firn layers at lomonosovfonna and penny ice cap |
publisher |
Uppsala universitet, Institutionen för geovetenskaper |
publishDate |
2014 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226239 |
long_lat |
ENVELOPE(17.663,17.663,78.774,78.774) ENVELOPE(-66.214,-66.214,67.284,67.284) |
geographic |
Arctic Canadian Arctic Archipelago Lomonosovfonna Penny Ice Cap Svalbard |
geographic_facet |
Arctic Canadian Arctic Archipelago Lomonosovfonna Penny Ice Cap Svalbard |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago Ice cap ice core Penny Ice Cap Svalbard |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago Ice cap ice core Penny Ice Cap Svalbard |
op_relation |
Självständigt arbete 90 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226239 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766303008235192320 |