ATTENTION: The software behind KU ScholarWorks is being upgraded to a new version. Starting July 15th, users will not be able to log in to the system, add items, nor make any changes until the new version is in place at the end of July. Searching for articles and opening files will continue to work while the system is being updated.
If you have any questions, please contact Marianne Reed at mreed@ku.edu .
Fracture propagation as means of rapidly transferring surface meltwater to the base of glaciers
dc.contributor.author | van der Veen, Cornelis J. | |
dc.date.accessioned | 2015-04-02T17:32:00Z | |
dc.date.available | 2015-04-02T17:32:00Z | |
dc.date.issued | 2007-01-07 | |
dc.identifier.citation | van der Veen, C. J. (2007), Fracture propagation as means of rapidly transferring surface meltwater to the base of glaciers, Geophys. Res. Lett., 34, L01501, http://dx.doi.org/10.1029/2006GL028385. | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/17297 | |
dc.description | This is the published version, also available here: http://dx.doi.org/10.1029/2006GL028385. | en_US |
dc.description.abstract | 1] Propagation of water-filled crevasses through glaciers is investigated based on the linear elastic fracture mechanics approach. A crevasse will penetrate to the depth where the stress intensity factor at the crevasse tip equals the fracture toughness of glacier ice. A crevasse subjected to inflow of water will continue to propagate downward with the propagation speed controlled primarily by the rate of water injection. While the far-field tensile stress and fracture toughness determine where crevasses can form, once initiated, the rate of water-driven crevasse propagation is nearly independent of these two parameters. Thus, rapid transfer of surface meltwater to the bed of a cold glacier requires abundant ponding at the surface to initiate and sustain full thickness fracturing before refreezing occurs. | en_US |
dc.publisher | American Geophysical Union | en_US |
dc.subject | glaciers | en_US |
dc.subject | meltwater | en_US |
dc.subject | fractures | en_US |
dc.title | Fracture propagation as means of rapidly transferring surface meltwater to the base of glaciers | en_US |
dc.type | Article | |
kusw.kuauthor | van der Veen, Cornelis J. | |
kusw.kudepartment | Geography | en_US |
dc.identifier.doi | 10.1029/2006GL028385 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess |