1994
DOI: 10.1139/e94-085
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Modelling of permafrost thickness during the late glacial stage in France: preliminary results

Abstract: Research on permafrost in France has concentrated on field evidence of fossil permafrost and the mapping of its possible distribution. Few attempts have been made to estimate permafrost thickness. Studies devoted to this subject in North America and Siberia have shown that permafrost may be very thick (several hundred metres), may be rapidly laid down (in < 2000 years in northwest Canada) and causes complex water flow patterns between the base of the permafrost and the soil surface. Using the "Gelsol" code … Show more

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Cited by 24 publications
(14 citation statements)
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“…Based on the thaw rates in Table , the transient simulations produced comparable thawing rates with other millennial‐scale modelling studies (e.g. Lebret et al ., ; Lunardini, ; Delisle, ). The thaw rate of South Russia is probably not correct since the VAMPER model results did not produce reasonable results for this area.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Based on the thaw rates in Table , the transient simulations produced comparable thawing rates with other millennial‐scale modelling studies (e.g. Lebret et al ., ; Lunardini, ; Delisle, ). The thaw rate of South Russia is probably not correct since the VAMPER model results did not produce reasonable results for this area.…”
Section: Discussionmentioning
confidence: 99%
“…Lebret et al . () simulated permafrost thicknesses for the last 120 k years for regions in France. Kukkonen and Šafanda () modelled permafrost thickness variation in the northern Fennoscandian region as a response to the major climatic shifts during the Holocene.…”
Section: Introductionmentioning
confidence: 99%
“…In these cases, a larger time step in their numerical simulations (usually 1 month or 1 year) (e.g., Osterkamp and Gosink, 1991;Lebret et al, 1994;Lunardini, 1995;Delisle, 1998) is assumed since they only need to force the models with the low-frequency changes in air temperature or ground temperature that occur over millennia. At this timescale, it is not necessary to use a sub-annual time step.…”
Section: Vamper Model Enhancementsmentioning
confidence: 99%
“…For example, Lebret et al . () and Delisle () simulated permafrost depth changes over the last 100 000 and 50 000 years, respectively, in Western Europe. However, our model does not simulate any permafrost during the LGM for this region due to the ice sheet.…”
Section: Resultsmentioning
confidence: 99%
“…Other modeling results for transient paleo-permafrost simulations are difficult to directly compare with previous work because the experiments are site-or region-specific. For example, Lebret et al (1994) and Delisle (1998) Osterkamp and Gosink (1991) simulated changes in permafrost depth over the last 100 000 years at Prudhoe Bay. During the LGM, our model assumes this area is covered by the ice sheet.…”
Section: Permafrost Analysismentioning
confidence: 99%