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Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only)
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| Zeitschriftentitel: | Annals of Glaciology |
|---|---|
| Personen und Körperschaften: | , |
| In: | Annals of Glaciology, 3, 1982, S. 341 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
International Glaciological Society
|
| Schlagwörter: |
| author_facet |
Jezek, Kenneth C. Bentley, Charles R. Jezek, Kenneth C. Bentley, Charles R. |
|---|---|
| author |
Jezek, Kenneth C. Bentley, Charles R. |
| spellingShingle |
Jezek, Kenneth C. Bentley, Charles R. Annals of Glaciology Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) Earth-Surface Processes |
| author_sort |
jezek, kenneth c. |
| spelling |
Jezek, Kenneth C. Bentley, Charles R. 0260-3055 1727-5644 International Glaciological Society Earth-Surface Processes http://dx.doi.org/10.1017/s0260305500003074 <jats:p>Surface and airborne radar sounding data were used to identify and map fields of bottom crevasses on the Ross Ice Shelf. Two major concentrations of crevasses were found, one along the grid-eastern grounding line and another, made up of eight smaller sites, grid-west of Crary Ice Rise.</jats:p> <jats:p>Based upon an analysis of bottom crevasse heights and locations, and of the strength of radar waves diffracted from the apex and bottom corners of the gridcrevasses, we conclude that the crevasses are formed at discrete locations on the ice shelf. By comparing the locations of crevasse formation with ice thickness and bottom topography, we conclude that most of the crevasse sites are associated with grounding. Hence we have postulated that six grounded areas, in addition to Crary Ice Rise and Roosevelt Island, exist in the grid-western sector of the ice shelf. These pinning points may be important for interpreting the dynamics of the West Antarctic ice sheet.</jats:p> Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) Annals of Glaciology |
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International Glaciological Society, 1982 |
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International Glaciological Society, 1982 |
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0260-3055 1727-5644 |
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Annals of Glaciology |
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49 |
| title |
Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_unstemmed |
Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_full |
Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_fullStr |
Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_full_unstemmed |
Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_short |
Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_sort |
field studies of bottom crevasses in the ross ice shelf, antarctica (abstract only) |
| topic |
Earth-Surface Processes |
| url |
http://dx.doi.org/10.1017/s0260305500003074 |
| publishDate |
1982 |
| physical |
341 |
| description |
<jats:p>Surface and airborne radar sounding data were used to identify and map fields of bottom crevasses on the Ross Ice Shelf. Two major concentrations of crevasses were found, one along the grid-eastern grounding line and another, made up of eight smaller sites, grid-west of Crary Ice Rise.</jats:p>
<jats:p>Based upon an analysis of bottom crevasse heights and locations, and of the strength of radar waves diffracted from the apex and bottom corners of the gridcrevasses, we conclude that the crevasses are formed at discrete locations on the ice shelf. By comparing the locations of crevasse formation with ice thickness and bottom topography, we conclude that most of the crevasse sites are associated with grounding. Hence we have postulated that six grounded areas, in addition to Crary Ice Rise and Roosevelt Island, exist in the grid-western sector of the ice shelf. These pinning points may be important for interpreting the dynamics of the West Antarctic ice sheet.</jats:p> |
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| author | Jezek, Kenneth C., Bentley, Charles R. |
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| description | <jats:p>Surface and airborne radar sounding data were used to identify and map fields of bottom crevasses on the Ross Ice Shelf. Two major concentrations of crevasses were found, one along the grid-eastern grounding line and another, made up of eight smaller sites, grid-west of Crary Ice Rise.</jats:p> <jats:p>Based upon an analysis of bottom crevasse heights and locations, and of the strength of radar waves diffracted from the apex and bottom corners of the gridcrevasses, we conclude that the crevasses are formed at discrete locations on the ice shelf. By comparing the locations of crevasse formation with ice thickness and bottom topography, we conclude that most of the crevasse sites are associated with grounding. Hence we have postulated that six grounded areas, in addition to Crary Ice Rise and Roosevelt Island, exist in the grid-western sector of the ice shelf. These pinning points may be important for interpreting the dynamics of the West Antarctic ice sheet.</jats:p> |
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| imprint | International Glaciological Society, 1982 |
| imprint_str_mv | International Glaciological Society, 1982 |
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| physical | 341 |
| publishDate | 1982 |
| publishDateSort | 1982 |
| publisher | International Glaciological Society |
| record_format | ai |
| recordtype | ai |
| series | Annals of Glaciology |
| source_id | 49 |
| spelling | Jezek, Kenneth C. Bentley, Charles R. 0260-3055 1727-5644 International Glaciological Society Earth-Surface Processes http://dx.doi.org/10.1017/s0260305500003074 <jats:p>Surface and airborne radar sounding data were used to identify and map fields of bottom crevasses on the Ross Ice Shelf. Two major concentrations of crevasses were found, one along the grid-eastern grounding line and another, made up of eight smaller sites, grid-west of Crary Ice Rise.</jats:p> <jats:p>Based upon an analysis of bottom crevasse heights and locations, and of the strength of radar waves diffracted from the apex and bottom corners of the gridcrevasses, we conclude that the crevasses are formed at discrete locations on the ice shelf. By comparing the locations of crevasse formation with ice thickness and bottom topography, we conclude that most of the crevasse sites are associated with grounding. Hence we have postulated that six grounded areas, in addition to Crary Ice Rise and Roosevelt Island, exist in the grid-western sector of the ice shelf. These pinning points may be important for interpreting the dynamics of the West Antarctic ice sheet.</jats:p> Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) Annals of Glaciology |
| spellingShingle | Jezek, Kenneth C., Bentley, Charles R., Annals of Glaciology, Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only), Earth-Surface Processes |
| title | Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_full | Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_fullStr | Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_full_unstemmed | Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_short | Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| title_sort | field studies of bottom crevasses in the ross ice shelf, antarctica (abstract only) |
| title_unstemmed | Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica (Abstract only) |
| topic | Earth-Surface Processes |
| url | http://dx.doi.org/10.1017/s0260305500003074 |