Late-Holocene changes in character and behaviour of land-terminating glaciers on James Ross Island, Antarctica

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F12%3A00000211" target="_blank" >RIV/00025798:_____/12:00000211 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3189/2012JoG11J148" target="_blank" >http://dx.doi.org/10.3189/2012JoG11J148</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3189/2012JoG11J148" target="_blank" >10.3189/2012JoG11J148</a>

Result language
angličtina
Original language name
Late-Holocene changes in character and behaviour of land-terminating glaciers on James Ross Island, Antarctica
Original language description
Virtually no information is available on the response of land-terminating Antarctic Peninsula glaciers to climate change on a centennial timescale. This paper analyses the topography, geomorphology and sedimentology of prominent moraines on James Ross Island, Antarctica, to determine geometric changes and to interpret glacier behaviour. The moraines are very likely due to a late-Holocene phase of advance and featured (1) shearing and thrusting within the snout, (2) shearing and deformation of basal sediment, (3) more supraglacial debris than at present and (4) short distances of sediment transport. Retreat of 100m and thinning of 15?20m has produced a loss of 0.1km3 of ice. The pattern of surface lowering is asymmetric. These geometrical changes are suggested most simply to be due to a net negative mass balance caused by a drier climate. Comparisons of the moraines with the current glaciological surface structure of the glaciers permits speculation of a transition from a polythermal to
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DE - Earth magnetism, geodesy, geography
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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