Simulation and parameterization of superimposed ice formation
Abstract In cold Arctic snowpacks, meltwater retention is a significant factor controlling the timing and magnitude of runoff. Meltwater percolates vertically through the snowpack until it reaches an impermeable horizon, whereupon a saturated zone is established. If the underlying media is below the...
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crwiley:10.1002/hyp.6718 2024-03-17T08:56:03+00:00 Simulation and parameterization of superimposed ice formation Bøggild, Carl Egede 2007 http://dx.doi.org/10.1002/hyp.6718 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.6718 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.6718 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 21, issue 12, page 1561-1566 ISSN 0885-6087 1099-1085 Water Science and Technology journal-article 2007 crwiley https://doi.org/10.1002/hyp.6718 2024-02-22T00:35:50Z Abstract In cold Arctic snowpacks, meltwater retention is a significant factor controlling the timing and magnitude of runoff. Meltwater percolates vertically through the snowpack until it reaches an impermeable horizon, whereupon a saturated zone is established. If the underlying media is below the freezing point, accretive ice formation takes place. This process has previously been crudely parameterized or modelled numerically. Such ice is called either superimposed ice on glaciers or basal ice on bare land. Using theory derived from sea‐ice formation, an analytical solution to basal ice growth is proposed. Results are compared against growth rates derived from numerical modelling. In addition, model results are compared to field observations of ice temperatures. The analytical solution is further extended to account for the temperature gradient inside the underlying media and the variable thermal properties of the underlying media. In the analysis, observations and references have predominantly relied on knowledge from glaciers. However, the process of accretive ice growth is equally important in seasonal snow packs with a cold snow‐ground interface and on Arctic sea ice where the ice‐snow interface is well below freezing point. The simplification of this accretive ice growth problem makes the solution attractive for incorporation in large‐scale cryospheric models. Copyright © 2007 John Wiley & Sons, Ltd. Article in Journal/Newspaper Arctic Sea ice Wiley Online Library Arctic Hydrological Processes 21 12 1561 1566 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
topic |
Water Science and Technology |
spellingShingle |
Water Science and Technology Bøggild, Carl Egede Simulation and parameterization of superimposed ice formation |
topic_facet |
Water Science and Technology |
description |
Abstract In cold Arctic snowpacks, meltwater retention is a significant factor controlling the timing and magnitude of runoff. Meltwater percolates vertically through the snowpack until it reaches an impermeable horizon, whereupon a saturated zone is established. If the underlying media is below the freezing point, accretive ice formation takes place. This process has previously been crudely parameterized or modelled numerically. Such ice is called either superimposed ice on glaciers or basal ice on bare land. Using theory derived from sea‐ice formation, an analytical solution to basal ice growth is proposed. Results are compared against growth rates derived from numerical modelling. In addition, model results are compared to field observations of ice temperatures. The analytical solution is further extended to account for the temperature gradient inside the underlying media and the variable thermal properties of the underlying media. In the analysis, observations and references have predominantly relied on knowledge from glaciers. However, the process of accretive ice growth is equally important in seasonal snow packs with a cold snow‐ground interface and on Arctic sea ice where the ice‐snow interface is well below freezing point. The simplification of this accretive ice growth problem makes the solution attractive for incorporation in large‐scale cryospheric models. Copyright © 2007 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Bøggild, Carl Egede |
author_facet |
Bøggild, Carl Egede |
author_sort |
Bøggild, Carl Egede |
title |
Simulation and parameterization of superimposed ice formation |
title_short |
Simulation and parameterization of superimposed ice formation |
title_full |
Simulation and parameterization of superimposed ice formation |
title_fullStr |
Simulation and parameterization of superimposed ice formation |
title_full_unstemmed |
Simulation and parameterization of superimposed ice formation |
title_sort |
simulation and parameterization of superimposed ice formation |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1002/hyp.6718 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.6718 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.6718 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Hydrological Processes volume 21, issue 12, page 1561-1566 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.6718 |
container_title |
Hydrological Processes |
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21 |
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12 |
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1561 |
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1566 |
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1793764782538489856 |