The glacier–rock glacier mountain landsystem: an example from North Iceland
A valley floor rock glacier in Nautárdalur, eastern Tröllaskagi, northern Iceland, has been investigated since the 1970s. Adjacent valleys are also examined as mountain landsystems. The methodology identifies ‘landform elements’ (features evident on slopes) on transects that can be identified and ma...
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ftsmithonian:oai:figshare.com:article/16915360 2023-05-15T16:21:36+02:00 The glacier–rock glacier mountain landsystem: an example from North Iceland W. Brian Whalley (10369034) 2021-11-01T19:20:05Z https://doi.org/10.6084/m9.figshare.16915360.v1 unknown https://figshare.com/articles/dataset/The_glacier_rock_glacier_mountain_landsystem_an_example_from_North_Iceland/16915360 doi:10.6084/m9.figshare.16915360.v1 CC BY 4.0 CC-BY Ecology Cancer Environmental Sciences not elsewhere classified Astronomical and Space Sciences not elsewhere classified Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified Rock glacier debris cover feature mapping Dataset 2021 ftsmithonian https://doi.org/10.6084/m9.figshare.16915360.v1 2021-12-19T22:53:47Z A valley floor rock glacier in Nautárdalur, eastern Tröllaskagi, northern Iceland, has been investigated since the 1970s. Adjacent valleys are also examined as mountain landsystems. The methodology identifies ‘landform elements’ (features evident on slopes) on transects that can be identified and mapped from Google Earth imagery. Transects can be compared to show similarities and differences between slopes and valleys and can be used to trace debris and ice/snow flow paths within landsystems. The paper confirms that a glacier ice core is present throughout the Nautárdalur rock glacier. Traces of glacier activity can be found in some neighbouring small valleys but where rock glaciers are not present. Previous field observations, when coupled to current Google Earth imagery, indicate glacier ice formation and deformation over the past 200 years. The quantities and timing of weathered debris from headwall cliffs were sufficient to partly cover small glaciers, thus forming rock glaciers in some, but not all, valleys. The landsystem and transect approach thus indicate glacier origins for the rock glaciers identified. No evidence for ‘permafrost creep’ in scree slopes that might produce valley-side rock glaciers has been found. Dataset glacier Ice ice core Iceland permafrost Unknown Glacier Mountain ENVELOPE(-131.854,-131.854,56.783,56.783) Nautárdalur ENVELOPE(-18.467,-18.467,65.801,65.801) |
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Open Polar |
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op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Ecology Cancer Environmental Sciences not elsewhere classified Astronomical and Space Sciences not elsewhere classified Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified Rock glacier debris cover feature mapping |
spellingShingle |
Ecology Cancer Environmental Sciences not elsewhere classified Astronomical and Space Sciences not elsewhere classified Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified Rock glacier debris cover feature mapping W. Brian Whalley (10369034) The glacier–rock glacier mountain landsystem: an example from North Iceland |
topic_facet |
Ecology Cancer Environmental Sciences not elsewhere classified Astronomical and Space Sciences not elsewhere classified Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified Rock glacier debris cover feature mapping |
description |
A valley floor rock glacier in Nautárdalur, eastern Tröllaskagi, northern Iceland, has been investigated since the 1970s. Adjacent valleys are also examined as mountain landsystems. The methodology identifies ‘landform elements’ (features evident on slopes) on transects that can be identified and mapped from Google Earth imagery. Transects can be compared to show similarities and differences between slopes and valleys and can be used to trace debris and ice/snow flow paths within landsystems. The paper confirms that a glacier ice core is present throughout the Nautárdalur rock glacier. Traces of glacier activity can be found in some neighbouring small valleys but where rock glaciers are not present. Previous field observations, when coupled to current Google Earth imagery, indicate glacier ice formation and deformation over the past 200 years. The quantities and timing of weathered debris from headwall cliffs were sufficient to partly cover small glaciers, thus forming rock glaciers in some, but not all, valleys. The landsystem and transect approach thus indicate glacier origins for the rock glaciers identified. No evidence for ‘permafrost creep’ in scree slopes that might produce valley-side rock glaciers has been found. |
format |
Dataset |
author |
W. Brian Whalley (10369034) |
author_facet |
W. Brian Whalley (10369034) |
author_sort |
W. Brian Whalley (10369034) |
title |
The glacier–rock glacier mountain landsystem: an example from North Iceland |
title_short |
The glacier–rock glacier mountain landsystem: an example from North Iceland |
title_full |
The glacier–rock glacier mountain landsystem: an example from North Iceland |
title_fullStr |
The glacier–rock glacier mountain landsystem: an example from North Iceland |
title_full_unstemmed |
The glacier–rock glacier mountain landsystem: an example from North Iceland |
title_sort |
glacier–rock glacier mountain landsystem: an example from north iceland |
publishDate |
2021 |
url |
https://doi.org/10.6084/m9.figshare.16915360.v1 |
long_lat |
ENVELOPE(-131.854,-131.854,56.783,56.783) ENVELOPE(-18.467,-18.467,65.801,65.801) |
geographic |
Glacier Mountain Nautárdalur |
geographic_facet |
Glacier Mountain Nautárdalur |
genre |
glacier Ice ice core Iceland permafrost |
genre_facet |
glacier Ice ice core Iceland permafrost |
op_relation |
https://figshare.com/articles/dataset/The_glacier_rock_glacier_mountain_landsystem_an_example_from_North_Iceland/16915360 doi:10.6084/m9.figshare.16915360.v1 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.16915360.v1 |
_version_ |
1766009609485549568 |