Matches in SemOpenAlex for { <https://semopenalex.org/work/W4306946355> ?p ?o ?g. }
Showing items 1 to 63 of
63
with 100 items per page.
- W4306946355 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Heinrich-type ice-sheet surges are one of the dominant signals of glacial climate variability. They are characterised as abrupt, quasi-periodic episodes of ice-sheet instabilities during which large amounts of ice are discharged from ice sheets into the ocean. The occurence of ice-sheet surges strongly influences the global climate evolution by altering the ocean circulation through the addition of freshwater and the atmospheric circulation through changes in ice-sheet height. The mechanisms controlling the timing and occurence of Heinrich-type ice-sheet surges remain poorly constrained to this day. Here, we use a coupled ice sheet-solid earth model to identify and quantify the importance of boundary forcing for the surge cycle length of Heinrich-type ice-sheet surges for two prominent ice streams of the Laurentide ice sheet – the land-terminating Mackenzie ice stream and the marine-terminating Hudson ice stream. We show that surface mass balance perturbations have the largest effect on the surge cycle length. Pertubations to the ice surface temperature and geothermal heatflux also influence the surge cycle length, but to a lesser degree. Ocean and sea-level forcing as well as different frequencies of the same forcing have a negligible effect on the surge cycle length. The simulations also highlight that only a certain parameter space exists under which ice-sheet oscillations can be maintained. Transitioning from an oscillatory state to a persistent ice streaming state, can result in an ice volume loss of up to 26 % for the respective ice stream drainage basin under otherwise constant climate conditions. We show that Mackenzie ice stream is susceptible to undergoing such a transition in response to all tested positive climate perturbations. This underlines the potential of the Mackenzie region to have contributed to prominent abrupt climate change events of the last deglaciation." @default.
- W4306946355 created "2022-10-21" @default.
- W4306946355 creator A5022864280 @default.
- W4306946355 date "2022-10-20" @default.
- W4306946355 modified "2023-09-30" @default.
- W4306946355 title "Reply to both referees" @default.
- W4306946355 doi "https://doi.org/10.5194/egusphere-2022-332-ac2" @default.
- W4306946355 hasPublicationYear "2022" @default.
- W4306946355 type Work @default.
- W4306946355 citedByCount "0" @default.
- W4306946355 crossrefType "peer-review" @default.
- W4306946355 hasAuthorship W4306946355A5022864280 @default.
- W4306946355 hasBestOaLocation W43069463551 @default.
- W4306946355 hasConcept C111368507 @default.
- W4306946355 hasConcept C114793014 @default.
- W4306946355 hasConcept C123750103 @default.
- W4306946355 hasConcept C127313418 @default.
- W4306946355 hasConcept C134543767 @default.
- W4306946355 hasConcept C136894858 @default.
- W4306946355 hasConcept C149767477 @default.
- W4306946355 hasConcept C154108245 @default.
- W4306946355 hasConcept C161798024 @default.
- W4306946355 hasConcept C16335420 @default.
- W4306946355 hasConcept C174252726 @default.
- W4306946355 hasConcept C189059800 @default.
- W4306946355 hasConcept C196735533 @default.
- W4306946355 hasConcept C197435368 @default.
- W4306946355 hasConcept C49204034 @default.
- W4306946355 hasConcept C81820708 @default.
- W4306946355 hasConcept C91586092 @default.
- W4306946355 hasConceptScore W4306946355C111368507 @default.
- W4306946355 hasConceptScore W4306946355C114793014 @default.
- W4306946355 hasConceptScore W4306946355C123750103 @default.
- W4306946355 hasConceptScore W4306946355C127313418 @default.
- W4306946355 hasConceptScore W4306946355C134543767 @default.
- W4306946355 hasConceptScore W4306946355C136894858 @default.
- W4306946355 hasConceptScore W4306946355C149767477 @default.
- W4306946355 hasConceptScore W4306946355C154108245 @default.
- W4306946355 hasConceptScore W4306946355C161798024 @default.
- W4306946355 hasConceptScore W4306946355C16335420 @default.
- W4306946355 hasConceptScore W4306946355C174252726 @default.
- W4306946355 hasConceptScore W4306946355C189059800 @default.
- W4306946355 hasConceptScore W4306946355C196735533 @default.
- W4306946355 hasConceptScore W4306946355C197435368 @default.
- W4306946355 hasConceptScore W4306946355C49204034 @default.
- W4306946355 hasConceptScore W4306946355C81820708 @default.
- W4306946355 hasConceptScore W4306946355C91586092 @default.
- W4306946355 hasLocation W43069463551 @default.
- W4306946355 hasOpenAccess W4306946355 @default.
- W4306946355 hasPrimaryLocation W43069463551 @default.
- W4306946355 hasRelatedWork W1523361156 @default.
- W4306946355 hasRelatedWork W1557448930 @default.
- W4306946355 hasRelatedWork W16576634 @default.
- W4306946355 hasRelatedWork W1995085978 @default.
- W4306946355 hasRelatedWork W2018005820 @default.
- W4306946355 hasRelatedWork W2035954933 @default.
- W4306946355 hasRelatedWork W2123454363 @default.
- W4306946355 hasRelatedWork W3028106998 @default.
- W4306946355 hasRelatedWork W4306948675 @default.
- W4306946355 hasRelatedWork W56493213 @default.
- W4306946355 isParatext "false" @default.
- W4306946355 isRetracted "false" @default.
- W4306946355 workType "peer-review" @default.