Basal buoyancy and fast-moving glaciers: in defense of analytic force balance
The geometric approach to force balance advocated by T. Hughes in a series of publications has challenged the analytic approach by implying that the latter does not adequately account for basal buoyancy on ice streams, thereby neglecting the contribution to the gravitational driving force associated...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2016-06-01
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| Series: | The Cryosphere |
| Online Access: | http://www.the-cryosphere.net/10/1331/2016/tc-10-1331-2016.pdf |
| _version_ | 1828396338936545280 |
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| author | C. J. van der Veen |
| author_facet | C. J. van der Veen |
| author_sort | C. J. van der Veen |
| collection | DOAJ |
| description | The geometric approach to force balance advocated by T. Hughes in a series of
publications has challenged the analytic approach by implying that the latter
does not adequately account for basal buoyancy on ice streams, thereby
neglecting the contribution to the gravitational driving force associated
with this basal buoyancy. Application of the geometric approach to Byrd
Glacier, Antarctica, yields physically unrealistic results, and it is argued
that this is because of a key limiting assumption in the geometric approach.
A more traditional analytic treatment of force balance shows that basal
buoyancy does not affect the balance of forces on ice streams, except locally
perhaps, through bridging effects. |
| first_indexed | 2024-12-10T08:28:13Z |
| format | Article |
| id | doaj.art-c2d695babbce42d8aeb2728df9cea46e |
| institution | Directory Open Access Journal |
| issn | 1994-0416 1994-0424 |
| language | English |
| last_indexed | 2024-12-10T08:28:13Z |
| publishDate | 2016-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The Cryosphere |
| spelling | doaj.art-c2d695babbce42d8aeb2728df9cea46e2022-12-22T01:56:11ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242016-06-011031331133710.5194/tc-10-1331-2016Basal buoyancy and fast-moving glaciers: in defense of analytic force balanceC. J. van der Veen0Department of Geography and Atmospheric Science, University of Kansas, 203 Lindley Hall, 1475 Jayhawk Blvd, Lawrence, KS 66045, USAThe geometric approach to force balance advocated by T. Hughes in a series of publications has challenged the analytic approach by implying that the latter does not adequately account for basal buoyancy on ice streams, thereby neglecting the contribution to the gravitational driving force associated with this basal buoyancy. Application of the geometric approach to Byrd Glacier, Antarctica, yields physically unrealistic results, and it is argued that this is because of a key limiting assumption in the geometric approach. A more traditional analytic treatment of force balance shows that basal buoyancy does not affect the balance of forces on ice streams, except locally perhaps, through bridging effects.http://www.the-cryosphere.net/10/1331/2016/tc-10-1331-2016.pdf |
| spellingShingle | C. J. van der Veen Basal buoyancy and fast-moving glaciers: in defense of analytic force balance The Cryosphere |
| title | Basal buoyancy and fast-moving glaciers: in defense of analytic force balance |
| title_full | Basal buoyancy and fast-moving glaciers: in defense of analytic force balance |
| title_fullStr | Basal buoyancy and fast-moving glaciers: in defense of analytic force balance |
| title_full_unstemmed | Basal buoyancy and fast-moving glaciers: in defense of analytic force balance |
| title_short | Basal buoyancy and fast-moving glaciers: in defense of analytic force balance |
| title_sort | basal buoyancy and fast moving glaciers in defense of analytic force balance |
| url | http://www.the-cryosphere.net/10/1331/2016/tc-10-1331-2016.pdf |
| work_keys_str_mv | AT cjvanderveen basalbuoyancyandfastmovingglaciersindefenseofanalyticforcebalance |