Welkom op het expertplatform!
Dit platform verschaft informatie en kennis omtrent de WL expertisedomeinen 'hydraulica en sediment', 'havens en waterwegen', 'waterbouwkundige constructies', 'waterbeheer' en 'kustbescherming' - gaande van WL medewerkers met hun expertise, het curriculum van deze instelling, tot publicaties, projecten, data (op termijn) en evenementen waarin het WL betrokken is.
Het WL onderschrijft het belang van "open access" voor de ontsluiting van haar onderzoeksresultaten. Lees er meer over in ons openaccessbeleid.
Eurasian permafrost instability constrained by reduced sea-ice cover
Vandenberghe, J.; Renssen, H.; Roche, D.M.; Goosse, H.; Velichko, A.A.; Gorbunov, A.; Levavasseur, G. (2012). Eurasian permafrost instability constrained by reduced sea-ice cover. Quat. Sci. Rev. 34: 16-23. dx.doi.org/10.1016/j.quascirev.2011.12.001
In: Quaternary Science Reviews. Pergamon Press: Oxford; New York. ISSN 0277-3791; e-ISSN 1873-457X
|  |
| Author keywords |
Permafrost distribution; Arctic sea-ice; Permafrost instability; LGMpermafrost extent; Permafrost modelling |
| Auteurs | | Top |
- Vandenberghe, J.
- Renssen, H.
- Roche, D.M.
- Goosse, H.
|
- Velichko, A.A.
- Gorbunov, A.
- Levavasseur, G.
|
|
| Abstract |
In order to specify potentially causal relationships between climate, permafrost extent and sea-ice cover we apply a twofold research strategy: (1) we cover a large range of climate conditions varying from full glacial to the relatively warm climate projected for the end of the 21st Century, (2) we combine new proxy-based reconstructions of Eurasian permafrost extent during the LGM and climate model simulations. We find that that there is a linear relationship between the winter sea-ice extent in the North Atlantic and Arctic Oceans and the latitude of the southernmost permafrost limit in Eurasia. During the LGM, extensive sea-ice cover caused a zonal permafrost distribution with the southern margin extending W-E and reaching 47°N, contrasting with the present-day NW SE trending margin (66°-52°N). We infer that under global warming scenarios projected by climate models for the 21st Century the Arctic sea-ice cover decline will cause widespread instability of, mainly discontinuous, permafrost in Eurasian lowlands. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
