A Model for Sorted Patterned-Ground Regularity
Abstract Sorted patterned ground refers to polygons, nets, or stripes defined by rocky borders which are the result of sorting in soil subjected to frost action. This paper presents a model in which convection cells, driven by unstable density stratification in the aqueous phase, result in uneven me...
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Cambridge University Press (CUP)
1983
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Online Access: | http://dx.doi.org/10.1017/s0022143000008376 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000008376 |
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crcambridgeupr:10.1017/s0022143000008376 2024-04-28T08:26:47+00:00 A Model for Sorted Patterned-Ground Regularity Ray, R. J. Krantz, W. B. Caine, T. N. Gunn, R. D. 1983 http://dx.doi.org/10.1017/s0022143000008376 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000008376 en eng Cambridge University Press (CUP) Journal of Glaciology volume 29, issue 102, page 317-337 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1983 crcambridgeupr https://doi.org/10.1017/s0022143000008376 2024-04-09T06:55:31Z Abstract Sorted patterned ground refers to polygons, nets, or stripes defined by rocky borders which are the result of sorting in soil subjected to frost action. This paper presents a model in which convection cells, driven by unstable density stratification in the aqueous phase, result in uneven melting of the underlying ice front during thawing. The resulting undulatory ice front with regularly spaced peaks and troughs provides the pattern which results in the regularity observed for certain types of patterned ground. In addition, the model predicts the width to depth-of-sorting ratio for both polygons and stripes, and explains the characteristic hexagonal shape of sorted polygons, the transition from sorted polygons to sorted stripes on sloped terrain, and the formation of sorted polygons under water. The predicted ratio of width to depth-of-sorting of 3.81 for sorted polygons is compared with the ratio of width to depth-of-sorting of 3.57 found from a linear regression analysis of 18 field study data. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 29 102 317 337 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Ray, R. J. Krantz, W. B. Caine, T. N. Gunn, R. D. A Model for Sorted Patterned-Ground Regularity |
topic_facet |
Earth-Surface Processes |
description |
Abstract Sorted patterned ground refers to polygons, nets, or stripes defined by rocky borders which are the result of sorting in soil subjected to frost action. This paper presents a model in which convection cells, driven by unstable density stratification in the aqueous phase, result in uneven melting of the underlying ice front during thawing. The resulting undulatory ice front with regularly spaced peaks and troughs provides the pattern which results in the regularity observed for certain types of patterned ground. In addition, the model predicts the width to depth-of-sorting ratio for both polygons and stripes, and explains the characteristic hexagonal shape of sorted polygons, the transition from sorted polygons to sorted stripes on sloped terrain, and the formation of sorted polygons under water. The predicted ratio of width to depth-of-sorting of 3.81 for sorted polygons is compared with the ratio of width to depth-of-sorting of 3.57 found from a linear regression analysis of 18 field study data. |
format |
Article in Journal/Newspaper |
author |
Ray, R. J. Krantz, W. B. Caine, T. N. Gunn, R. D. |
author_facet |
Ray, R. J. Krantz, W. B. Caine, T. N. Gunn, R. D. |
author_sort |
Ray, R. J. |
title |
A Model for Sorted Patterned-Ground Regularity |
title_short |
A Model for Sorted Patterned-Ground Regularity |
title_full |
A Model for Sorted Patterned-Ground Regularity |
title_fullStr |
A Model for Sorted Patterned-Ground Regularity |
title_full_unstemmed |
A Model for Sorted Patterned-Ground Regularity |
title_sort |
model for sorted patterned-ground regularity |
publisher |
Cambridge University Press (CUP) |
publishDate |
1983 |
url |
http://dx.doi.org/10.1017/s0022143000008376 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000008376 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 29, issue 102, page 317-337 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000008376 |
container_title |
Journal of Glaciology |
container_volume |
29 |
container_issue |
102 |
container_start_page |
317 |
op_container_end_page |
337 |
_version_ |
1797586034101321728 |