Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time
ABSTRACT Polygon networks are usually described qualitatively as becoming more regular through time, but such a concept has yet to be demonstrated numerically. The aim of this study is to address this question quantitatively in order to determine if polygonal terrain networks actually become more re...
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crwiley:10.1002/ppp.1741 2024-09-15T17:48:04+00:00 Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time Haltigin, Timothy W. Pollard, Wayne H. Dutilleul, Pierre Osinski, Gordon R. 2012 http://dx.doi.org/10.1002/ppp.1741 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1741 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1741 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 23, issue 3, page 178-186 ISSN 1045-6740 1099-1530 journal-article 2012 crwiley https://doi.org/10.1002/ppp.1741 2024-07-30T04:24:21Z ABSTRACT Polygon networks are usually described qualitatively as becoming more regular through time, but such a concept has yet to be demonstrated numerically. The aim of this study is to address this question quantitatively in order to determine if polygonal terrain networks actually become more regular as they develop. Spatial point pattern analysis (SPPA), which can quantify overall network geometries based on the randomness or regularity exhibited by the spatial arrangement of polygon‐bounding trough intersections, was used at three ice‐wedge polygon sites in the Canadian High Arctic. SPPA was applied in two ways: (i) on the present‐day networks observed in the field; and (ii) on historical arrangements derived by distinguishing primary from secondary troughs. In all cases, the polygonal networks had undergone a statistically significant regularisation over the course of their development. Although the method was applied only to terrestrial ice‐wedge polygons, such an approach may also be useful for interpreting the evolution of Antarctic sublimation polygons and geometrically similar polygonal networks on Mars. Copyright © 2012 John Wiley & Sons, Ltd. and Her Majesty the Queen in Right of Canada. Article in Journal/Newspaper Antarc* Antarctic Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 23 3 178 186 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Polygon networks are usually described qualitatively as becoming more regular through time, but such a concept has yet to be demonstrated numerically. The aim of this study is to address this question quantitatively in order to determine if polygonal terrain networks actually become more regular as they develop. Spatial point pattern analysis (SPPA), which can quantify overall network geometries based on the randomness or regularity exhibited by the spatial arrangement of polygon‐bounding trough intersections, was used at three ice‐wedge polygon sites in the Canadian High Arctic. SPPA was applied in two ways: (i) on the present‐day networks observed in the field; and (ii) on historical arrangements derived by distinguishing primary from secondary troughs. In all cases, the polygonal networks had undergone a statistically significant regularisation over the course of their development. Although the method was applied only to terrestrial ice‐wedge polygons, such an approach may also be useful for interpreting the evolution of Antarctic sublimation polygons and geometrically similar polygonal networks on Mars. Copyright © 2012 John Wiley & Sons, Ltd. and Her Majesty the Queen in Right of Canada. |
format |
Article in Journal/Newspaper |
author |
Haltigin, Timothy W. Pollard, Wayne H. Dutilleul, Pierre Osinski, Gordon R. |
spellingShingle |
Haltigin, Timothy W. Pollard, Wayne H. Dutilleul, Pierre Osinski, Gordon R. Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time |
author_facet |
Haltigin, Timothy W. Pollard, Wayne H. Dutilleul, Pierre Osinski, Gordon R. |
author_sort |
Haltigin, Timothy W. |
title |
Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time |
title_short |
Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time |
title_full |
Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time |
title_fullStr |
Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time |
title_full_unstemmed |
Geometric Evolution of Polygonal Terrain Networks in the Canadian High Arctic: Evidence of Increasing Regularity over Time |
title_sort |
geometric evolution of polygonal terrain networks in the canadian high arctic: evidence of increasing regularity over time |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/ppp.1741 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1741 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1741 |
genre |
Antarc* Antarctic Permafrost and Periglacial Processes |
genre_facet |
Antarc* Antarctic Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 23, issue 3, page 178-186 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.1741 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
23 |
container_issue |
3 |
container_start_page |
178 |
op_container_end_page |
186 |
_version_ |
1810288959634276352 |