Matches in SemOpenAlex for { <https://semopenalex.org/work/W111511289> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W111511289 endingPage "477" @default.
- W111511289 startingPage "463" @default.
- W111511289 abstract "The effects of frictional tangential traction combined with regelation on the basal sliding of a temperate glacier down an inclined wavy bed are examined. Two friction models are treated. First, a Coulomb law model having the assumptions that sliding occurs everywhere and that the tangential traction is proportional to the normal pressure. Secondly, a velocity power law in which the tangential traction is proportional to a power of the slip velocity. The ice motion is approximated by steady slow Newtonian flow and the bed undulation about a mean bed-line has a maximum slope ∊ ≪I. Flow solutions are constructed as perturbations (in powers off ∈) of the plane laminar flow corresponding to non-slip on the mean bed-line assuming that the ice remains everywhere in contact with the bed; that is, no cavitation takes place. If the normal traction is predicted to be tensile over part of the bed, implying that cavitation has occurred, then a new solution is needed in which the ice base over cavities is traction-free. Since the cavity sections and profile of the free ice base are then part of the overall solution, an intricate mixed boundary-value problem is set up for the flow and the present analysis is inadequate. For a sinusoidal bed the perfect-slip (zero tangential traction) solution predicts compressive normal traction everywhere on the bed provided that the mean bed-line inclination α (to the horizontal) is less than a critical value α e which is of order ε. For greater values of α including a range of order ∊, the normal traction is tensile on some parts of the bed, and a solution with cavitation is needed. If the tensile sections are relatively small it is expected that the resulting cavitation will not change the overall solution significantly. However, the Coulomb friction solution has extensive zones of tensile traction for all values of α, so that extensive cavitation would occur. In contrast, the velocity-power friction solution has compressive traction everywhere on the bed for α ⩽α e = 0 (I) provided that the ice depth is not too large, and also for deep glaciers forα ⩽α e = O ∊ Furthermore, the predicted basal sliding velocity varies much less with the length scale of the bed undulation than in the perfect-slip solution, and is smaller." @default.
- W111511289 created "2016-06-24" @default.
- W111511289 creator A5085778074 @default.
- W111511289 date "1976-01-01" @default.
- W111511289 modified "2023-09-25" @default.
- W111511289 title "Glacier Sliding Down an Inclined Wavy Bed With Friction" @default.
- W111511289 cites W198461670 @default.
- W111511289 cites W1997870649 @default.
- W111511289 cites W2106901936 @default.
- W111511289 cites W2109404148 @default.
- W111511289 cites W4240191825 @default.
- W111511289 cites W51777794 @default.
- W111511289 cites W8650530 @default.
- W111511289 doi "https://doi.org/10.1017/s0022143000013745" @default.
- W111511289 hasPublicationYear "1976" @default.
- W111511289 type Work @default.
- W111511289 sameAs 111511289 @default.
- W111511289 citedByCount "39" @default.
- W111511289 countsByYear W1115112892013 @default.
- W111511289 countsByYear W1115112892015 @default.
- W111511289 countsByYear W1115112892019 @default.
- W111511289 crossrefType "journal-article" @default.
- W111511289 hasAuthorship W111511289A5085778074 @default.
- W111511289 hasBestOaLocation W1115112891 @default.
- W111511289 hasConcept C111808769 @default.
- W111511289 hasConcept C114793014 @default.
- W111511289 hasConcept C121332964 @default.
- W111511289 hasConcept C127313418 @default.
- W111511289 hasConcept C187320778 @default.
- W111511289 hasConcept C195268267 @default.
- W111511289 hasConcept C2524010 @default.
- W111511289 hasConcept C2776132308 @default.
- W111511289 hasConcept C294558 @default.
- W111511289 hasConcept C33923547 @default.
- W111511289 hasConcept C38834483 @default.
- W111511289 hasConcept C57879066 @default.
- W111511289 hasConcept C5804382 @default.
- W111511289 hasConcept C62520636 @default.
- W111511289 hasConcept C76563973 @default.
- W111511289 hasConcept C97355855 @default.
- W111511289 hasConceptScore W111511289C111808769 @default.
- W111511289 hasConceptScore W111511289C114793014 @default.
- W111511289 hasConceptScore W111511289C121332964 @default.
- W111511289 hasConceptScore W111511289C127313418 @default.
- W111511289 hasConceptScore W111511289C187320778 @default.
- W111511289 hasConceptScore W111511289C195268267 @default.
- W111511289 hasConceptScore W111511289C2524010 @default.
- W111511289 hasConceptScore W111511289C2776132308 @default.
- W111511289 hasConceptScore W111511289C294558 @default.
- W111511289 hasConceptScore W111511289C33923547 @default.
- W111511289 hasConceptScore W111511289C38834483 @default.
- W111511289 hasConceptScore W111511289C57879066 @default.
- W111511289 hasConceptScore W111511289C5804382 @default.
- W111511289 hasConceptScore W111511289C62520636 @default.
- W111511289 hasConceptScore W111511289C76563973 @default.
- W111511289 hasConceptScore W111511289C97355855 @default.
- W111511289 hasIssue "77" @default.
- W111511289 hasLocation W1115112891 @default.
- W111511289 hasOpenAccess W111511289 @default.
- W111511289 hasPrimaryLocation W1115112891 @default.
- W111511289 hasRelatedWork W1611860638 @default.
- W111511289 hasRelatedWork W1617708017 @default.
- W111511289 hasRelatedWork W1622283437 @default.
- W111511289 hasRelatedWork W1648503285 @default.
- W111511289 hasRelatedWork W1651306795 @default.
- W111511289 hasRelatedWork W1978840772 @default.
- W111511289 hasRelatedWork W198461670 @default.
- W111511289 hasRelatedWork W1997870649 @default.
- W111511289 hasRelatedWork W2006993102 @default.
- W111511289 hasRelatedWork W2070534697 @default.
- W111511289 hasRelatedWork W2070611029 @default.
- W111511289 hasRelatedWork W2096887168 @default.
- W111511289 hasRelatedWork W2106901936 @default.
- W111511289 hasRelatedWork W2109404148 @default.
- W111511289 hasRelatedWork W2132673257 @default.
- W111511289 hasRelatedWork W292695685 @default.
- W111511289 hasRelatedWork W51777794 @default.
- W111511289 hasRelatedWork W52505274 @default.
- W111511289 hasRelatedWork W87044691 @default.
- W111511289 hasRelatedWork W2164451761 @default.
- W111511289 hasVolume "17" @default.
- W111511289 isParatext "false" @default.
- W111511289 isRetracted "false" @default.
- W111511289 magId "111511289" @default.
- W111511289 workType "article" @default.