A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard
Recent geophysical mapping of the Arctic seafloor has revealed extensive erosion caused by ice and glacial landforms on ridge crests and plateaus where present water depths are shallower than . Such erosion stems from thick outlet glaciers and massive ice shelf complexes. Cores and glacigenic landfo...
Main Authors: | , , |
---|---|
Other Authors: | , , , , , , , , , , , |
Format: | Book Part |
Language: | English |
Published: |
Springer
2014
|
Subjects: | |
Online Access: | https://www.zora.uzh.ch/id/eprint/98773/ https://www.zora.uzh.ch/98773 https://doi.org/10.1007/978-3-642-32408-6_10 |
id |
ftunivzuerich:oai:www.zora.uzh.ch:98773 |
---|---|
record_format |
openpolar |
spelling |
ftunivzuerich:oai:www.zora.uzh.ch:98773 2024-10-13T14:04:51+00:00 A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard Furrer, Reinhard Jakobsson, Martin Kirchner, Nina Durán, J J Guardiola-Albert, C Heredia, J Moreno-Merino, L Pardo-Igúzquiza, E Vargas-Guzmán, J A Durán, J J ( J J ) Guardiola-Albert, C ( C ) Heredia, J ( J ) Moreno-Merino, L ( L ) Pardo-Igúzquiza, E ( E ) Vargas-Guzmán, J A ( J A ) 2014 https://www.zora.uzh.ch/id/eprint/98773/ https://www.zora.uzh.ch/98773 https://doi.org/10.1007/978-3-642-32408-6_10 eng eng Springer https://www.zora.uzh.ch/98773 doi:10.1007/978-3-642-32408-6_10 urn:isbn:978-3-642-32408-6 urn:issn:2193-8571 info:eu-repo/semantics/closedAccess Furrer, Reinhard; Jakobsson, Martin; Kirchner, Nina (2014). A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard. In: Durán, J J; Guardiola-Albert, C; Heredia, J; Moreno-Merino, L; Pardo-Igúzquiza, E; Vargas-Guzmán, J A. Mathematics of planet earth. Berlin: Springer, 41-44. Institute of Mathematics Institute for Computational Science 510 Mathematics Book Section PeerReviewed info:eu-repo/semantics/bookPart 2014 ftunivzuerich https://doi.org/10.1007/978-3-642-32408-6_10 2024-09-18T00:49:47Z Recent geophysical mapping of the Arctic seafloor has revealed extensive erosion caused by ice and glacial landforms on ridge crests and plateaus where present water depths are shallower than . Such erosion stems from thick outlet glaciers and massive ice shelf complexes. Cores and glacigenic landforms suggest that the largest ice shelf complex was confined to the Amerasian sector of the Arctic Ocean, roughly 135,000 years ago. We apply a peak over threshold approach to assess whether the calving fronts of this ice shelf complex comprise a likely source of the deep draft icebergs responsible for the mapped plow marks. This approach is novel to modeling Arctic paleoglacial configurations. Predicted extreme calving front drafts match observed deep-draft iceberg marks if the ice shelf complex is sufficiently large. We explain the methodology of Kirchner, Furrer, Jakobsson and coauthors [1] in a storyboard framework, i.e., with figures and sketches. Here, we extend their approach by using shelf specific threshold selection, an alternative estimate to scale ‘coastlines’, supervised pooling of estimates and uncertainty estimates based on parametric bootstrap. For theoretical details as well as details about the precise origin and preprocessing of the data we refer to [1], much of the statistical theory is covered in [2, 2]. Book Part Arctic Arctic Ocean Arctig Ice Shelf Iceberg* University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Arctic Arctic Ocean 41 44 |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Mathematics Institute for Computational Science 510 Mathematics |
spellingShingle |
Institute of Mathematics Institute for Computational Science 510 Mathematics Furrer, Reinhard Jakobsson, Martin Kirchner, Nina A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard |
topic_facet |
Institute of Mathematics Institute for Computational Science 510 Mathematics |
description |
Recent geophysical mapping of the Arctic seafloor has revealed extensive erosion caused by ice and glacial landforms on ridge crests and plateaus where present water depths are shallower than . Such erosion stems from thick outlet glaciers and massive ice shelf complexes. Cores and glacigenic landforms suggest that the largest ice shelf complex was confined to the Amerasian sector of the Arctic Ocean, roughly 135,000 years ago. We apply a peak over threshold approach to assess whether the calving fronts of this ice shelf complex comprise a likely source of the deep draft icebergs responsible for the mapped plow marks. This approach is novel to modeling Arctic paleoglacial configurations. Predicted extreme calving front drafts match observed deep-draft iceberg marks if the ice shelf complex is sufficiently large. We explain the methodology of Kirchner, Furrer, Jakobsson and coauthors [1] in a storyboard framework, i.e., with figures and sketches. Here, we extend their approach by using shelf specific threshold selection, an alternative estimate to scale ‘coastlines’, supervised pooling of estimates and uncertainty estimates based on parametric bootstrap. For theoretical details as well as details about the precise origin and preprocessing of the data we refer to [1], much of the statistical theory is covered in [2, 2]. |
author2 |
Durán, J J Guardiola-Albert, C Heredia, J Moreno-Merino, L Pardo-Igúzquiza, E Vargas-Guzmán, J A Durán, J J ( J J ) Guardiola-Albert, C ( C ) Heredia, J ( J ) Moreno-Merino, L ( L ) Pardo-Igúzquiza, E ( E ) Vargas-Guzmán, J A ( J A ) |
format |
Book Part |
author |
Furrer, Reinhard Jakobsson, Martin Kirchner, Nina |
author_facet |
Furrer, Reinhard Jakobsson, Martin Kirchner, Nina |
author_sort |
Furrer, Reinhard |
title |
A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard |
title_short |
A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard |
title_full |
A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard |
title_fullStr |
A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard |
title_full_unstemmed |
A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard |
title_sort |
cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard |
publisher |
Springer |
publishDate |
2014 |
url |
https://www.zora.uzh.ch/id/eprint/98773/ https://www.zora.uzh.ch/98773 https://doi.org/10.1007/978-3-642-32408-6_10 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Arctig Ice Shelf Iceberg* |
genre_facet |
Arctic Arctic Ocean Arctig Ice Shelf Iceberg* |
op_source |
Furrer, Reinhard; Jakobsson, Martin; Kirchner, Nina (2014). A cross-polar modeling approach to hindcast paleo-arctig mega icebergs : a storyboard. In: Durán, J J; Guardiola-Albert, C; Heredia, J; Moreno-Merino, L; Pardo-Igúzquiza, E; Vargas-Guzmán, J A. Mathematics of planet earth. Berlin: Springer, 41-44. |
op_relation |
https://www.zora.uzh.ch/98773 doi:10.1007/978-3-642-32408-6_10 urn:isbn:978-3-642-32408-6 urn:issn:2193-8571 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/978-3-642-32408-6_10 |
container_start_page |
41 |
op_container_end_page |
44 |
_version_ |
1812810556391817216 |