Matches in SemOpenAlex for { <https://semopenalex.org/work/W137667050> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W137667050 endingPage "137" @default.
- W137667050 startingPage "132" @default.
- W137667050 abstract "A self-surging glacier model (Budd and McInnes, 1974; Budd, 1975), in which basal sliding is parameterized in terms of energy per unit area dissipated by basal friction, T b V b , has been extended to model the steady-state and time-dependent behaviour of eight Antarctic ice streams. Their basic characteristics were established with the working hypothesis of steady-state mass balance for the ice sheet as a whole, using a 20 km grid digitization of the surface and bedrock-elevation contours in Antarctica: glaciological and geophysical folio (Drewry, 1983). When the viscosity of the ice is lowered to values that are somewhat unrealistic for the present Antarctic ice, all the model ice streams enter a pulsating fast-sliding mode of flow in which the velocity reaches several km/year for periods ranging from fractions οf a year to tens of years. Except for one ice stream (Slessor Glacier), no substantial surge-like advances were found, and even in that case no periodic surging regime developed. The pulses are tentatively attributed to processes at the grounding line, with the converging width-parameterization scheme in the surging velocity calculation as another complexity that is still being investigated. For the cyclic surging Medvezhi Glacier model (Budd and Mclnnes, 1978), it has been found that the model surges change to shorter pulses as the width-convergence rate is increased. It is concluded that the special regime and topography of ice streams — net accumulation increasing along the strongly converging flow and removal of the ice by calving rather than ablation — impede the onset of periodic surging. However, more sophisticated parameterizations of the basal hydraulics now in development may well show that ice-stream surges after all are possible." @default.
- W137667050 created "2016-06-24" @default.
- W137667050 creator A5018586047 @default.
- W137667050 creator A5040610911 @default.
- W137667050 creator A5073035037 @default.
- W137667050 creator A5088372928 @default.
- W137667050 date "1989-01-01" @default.
- W137667050 modified "2023-09-25" @default.
- W137667050 title "Model Studies on Ice-Stream Surging" @default.
- W137667050 cites W1651306795 @default.
- W137667050 cites W1676983964 @default.
- W137667050 cites W1971611870 @default.
- W137667050 cites W2004904742 @default.
- W137667050 cites W2057247408 @default.
- W137667050 cites W2066469921 @default.
- W137667050 cites W22978841 @default.
- W137667050 cites W2586269740 @default.
- W137667050 cites W30803479 @default.
- W137667050 cites W78804188 @default.
- W137667050 doi "https://doi.org/10.1017/s0260305500007096" @default.
- W137667050 hasPublicationYear "1989" @default.
- W137667050 type Work @default.
- W137667050 sameAs 137667050 @default.
- W137667050 citedByCount "5" @default.
- W137667050 countsByYear W1376670502014 @default.
- W137667050 crossrefType "journal-article" @default.
- W137667050 hasAuthorship W137667050A5018586047 @default.
- W137667050 hasAuthorship W137667050A5040610911 @default.
- W137667050 hasAuthorship W137667050A5073035037 @default.
- W137667050 hasAuthorship W137667050A5088372928 @default.
- W137667050 hasBestOaLocation W1376670501 @default.
- W137667050 hasConcept C100834320 @default.
- W137667050 hasConcept C114793014 @default.
- W137667050 hasConcept C123750103 @default.
- W137667050 hasConcept C127313418 @default.
- W137667050 hasConcept C136894858 @default.
- W137667050 hasConcept C154108245 @default.
- W137667050 hasConcept C197435368 @default.
- W137667050 hasConcept C22641795 @default.
- W137667050 hasConcept C2776659692 @default.
- W137667050 hasConcept C2779234561 @default.
- W137667050 hasConcept C31258907 @default.
- W137667050 hasConcept C41008148 @default.
- W137667050 hasConcept C42090638 @default.
- W137667050 hasConcept C49204034 @default.
- W137667050 hasConcept C54355233 @default.
- W137667050 hasConcept C81820708 @default.
- W137667050 hasConcept C86803240 @default.
- W137667050 hasConceptScore W137667050C100834320 @default.
- W137667050 hasConceptScore W137667050C114793014 @default.
- W137667050 hasConceptScore W137667050C123750103 @default.
- W137667050 hasConceptScore W137667050C127313418 @default.
- W137667050 hasConceptScore W137667050C136894858 @default.
- W137667050 hasConceptScore W137667050C154108245 @default.
- W137667050 hasConceptScore W137667050C197435368 @default.
- W137667050 hasConceptScore W137667050C22641795 @default.
- W137667050 hasConceptScore W137667050C2776659692 @default.
- W137667050 hasConceptScore W137667050C2779234561 @default.
- W137667050 hasConceptScore W137667050C31258907 @default.
- W137667050 hasConceptScore W137667050C41008148 @default.
- W137667050 hasConceptScore W137667050C42090638 @default.
- W137667050 hasConceptScore W137667050C49204034 @default.
- W137667050 hasConceptScore W137667050C54355233 @default.
- W137667050 hasConceptScore W137667050C81820708 @default.
- W137667050 hasConceptScore W137667050C86803240 @default.
- W137667050 hasLocation W1376670501 @default.
- W137667050 hasOpenAccess W137667050 @default.
- W137667050 hasPrimaryLocation W1376670501 @default.
- W137667050 hasRelatedWork W113688163 @default.
- W137667050 hasRelatedWork W121244430 @default.
- W137667050 hasRelatedWork W1638349272 @default.
- W137667050 hasRelatedWork W2085216295 @default.
- W137667050 hasRelatedWork W2090030785 @default.
- W137667050 hasRelatedWork W2099589822 @default.
- W137667050 hasRelatedWork W2149661997 @default.
- W137667050 hasRelatedWork W4234989888 @default.
- W137667050 hasRelatedWork W4235931819 @default.
- W137667050 hasRelatedWork W4236240111 @default.
- W137667050 hasVolume "12" @default.
- W137667050 isParatext "false" @default.
- W137667050 isRetracted "false" @default.
- W137667050 magId "137667050" @default.
- W137667050 workType "article" @default.