The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed
Abstract The interesting suggestion by Knight and Tweed (1991) that a link exists between glacier velocity changes and the filling and draining of a marginal ice‐dammed lake at Sólheimajökull, southern Iceland, is examined. The main problem lies not with plausibility, but with a lack of field data t...
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crwiley:10.1002/hyp.3360080507 2024-06-02T08:07:05+00:00 The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed Lawler, D. M. 1994 http://dx.doi.org/10.1002/hyp.3360080507 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.3360080507 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.3360080507 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 8, issue 5, page 447-456 ISSN 0885-6087 1099-1085 journal-article 1994 crwiley https://doi.org/10.1002/hyp.3360080507 2024-05-03T11:44:38Z Abstract The interesting suggestion by Knight and Tweed (1991) that a link exists between glacier velocity changes and the filling and draining of a marginal ice‐dammed lake at Sólheimajökull, southern Iceland, is examined. The main problem lies not with plausibility, but with a lack of field data to substantiate the argument. Some pertinent hydrological, glaciological and meteorological data from the area are presented here, many of which do not entirely support certain inferences and observations made in their paper. It is shown that this very small lake is likely to have limited quantitative significance in the operation of the glacio‐hydrological or solute and sediment transfer systems in this basin. Further, specific, difficulties include the absence of crucial observations on glacier velocity variations and the precise timing and pattern of lake drainage in relation to such velocity changes, the lack of evidence for a significant relationship between precipitation receipt and ice velocity here [a component of the Knight and Tweed (1991) proposition], and the occurrence of the lake drainage event in a rain‐free period (contrary to the authors' suggestion). The opportunity is also taken to correct some incidental errors. Article in Journal/Newspaper glacier Iceland Wiley Online Library Dammed Lake ENVELOPE(-68.258,-68.258,68.496,68.496) Sólheimajökull ENVELOPE(-19.303,-19.303,63.557,63.557) Hydrological Processes 8 5 447 456 |
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Wiley Online Library |
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English |
description |
Abstract The interesting suggestion by Knight and Tweed (1991) that a link exists between glacier velocity changes and the filling and draining of a marginal ice‐dammed lake at Sólheimajökull, southern Iceland, is examined. The main problem lies not with plausibility, but with a lack of field data to substantiate the argument. Some pertinent hydrological, glaciological and meteorological data from the area are presented here, many of which do not entirely support certain inferences and observations made in their paper. It is shown that this very small lake is likely to have limited quantitative significance in the operation of the glacio‐hydrological or solute and sediment transfer systems in this basin. Further, specific, difficulties include the absence of crucial observations on glacier velocity variations and the precise timing and pattern of lake drainage in relation to such velocity changes, the lack of evidence for a significant relationship between precipitation receipt and ice velocity here [a component of the Knight and Tweed (1991) proposition], and the occurrence of the lake drainage event in a rain‐free period (contrary to the authors' suggestion). The opportunity is also taken to correct some incidental errors. |
format |
Article in Journal/Newspaper |
author |
Lawler, D. M. |
spellingShingle |
Lawler, D. M. The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed |
author_facet |
Lawler, D. M. |
author_sort |
Lawler, D. M. |
title |
The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed |
title_short |
The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed |
title_full |
The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed |
title_fullStr |
The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed |
title_full_unstemmed |
The link between glacier velocity and the drainage of ice‐dammed lakes: Comment on a paper by knight and tweed |
title_sort |
link between glacier velocity and the drainage of ice‐dammed lakes: comment on a paper by knight and tweed |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1002/hyp.3360080507 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.3360080507 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.3360080507 |
long_lat |
ENVELOPE(-68.258,-68.258,68.496,68.496) ENVELOPE(-19.303,-19.303,63.557,63.557) |
geographic |
Dammed Lake Sólheimajökull |
geographic_facet |
Dammed Lake Sólheimajökull |
genre |
glacier Iceland |
genre_facet |
glacier Iceland |
op_source |
Hydrological Processes volume 8, issue 5, page 447-456 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.3360080507 |
container_title |
Hydrological Processes |
container_volume |
8 |
container_issue |
5 |
container_start_page |
447 |
op_container_end_page |
456 |
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1800752089336381440 |