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 | |