2017
DOI: 10.5194/tc-11-1691-2017
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New observations indicate the possible presence of permafrost in North Africa (Djebel Toubkal, High Atlas, Morocco)

Abstract: Abstract. Relict and present-day periglacial features have been reported in the literature for the upper reaches of the High Atlas mountains, which is the highest range in North Africa (Djebel Toubkal -4167 m a.s.l.). A lobate feature in the Irhzer Ikhibi south at 3800 m a.s.l. has been previously interpreted as an active rock glacier, but no measurements of ground or air temperatures are known to exist for the area. In order to assess the possible presence of permafrost, we analyse data from June 2015 to June… Show more

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Cited by 32 publications
(25 citation statements)
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“…using a lapse rate of 0.6°C per 100 m). This is supported by ground surface temperature measurements at the Irhzer Ihkibi Sud site on Toubkal recently reported by Vieira et al (2017), who use this data alongside the geomorphological evidence to argue that permafrost is probably present. Periglacial processes are therefore clearly active today with sporadic and discontinous permafrost still likely to be present in the highest parts of the High Atlas.…”
Section: High Atlas Moroccosupporting
confidence: 70%
See 1 more Smart Citation
“…using a lapse rate of 0.6°C per 100 m). This is supported by ground surface temperature measurements at the Irhzer Ihkibi Sud site on Toubkal recently reported by Vieira et al (2017), who use this data alongside the geomorphological evidence to argue that permafrost is probably present. Periglacial processes are therefore clearly active today with sporadic and discontinous permafrost still likely to be present in the highest parts of the High Atlas.…”
Section: High Atlas Moroccosupporting
confidence: 70%
“…2) identified an active rock glacier at c. 3700-4000 m in the western cirque of Toubkal (Irhzer Ihkibi Sud). This feature is characterised by a small lobe of large angular boulder debris emanating from the talus slope at the head of the western cirque of Toubkal (for a photograph see Vieira et al, 2017) and is characteristic of a small talus rock glacier (cf. Barsch, 1996) or protalus lobe (cf.…”
Section: High Atlas Moroccomentioning
confidence: 99%
“…The altitudinal range observed in the Pyrenees, above 2,600 m on north‐facing slopes and 2,800 m on south‐facing slopes, is higher than in the southern Alps (above 2,400 m) and Rila mountains (above ~2,350 m), but lower than in the southeastern Alps, such as Mount Olympus (~2,700 m), NE Turkey and central Anatolia (above 2,800 m) . To the south permafrost is only found in sporadic patches above 3,000–3,100 m in the Sierra Nevada and the Atlas Mountains . Latitude appears to be the dominant factor in the distribution of Mediterranean periglacial belts for massifs of similar altitudes.…”
Section: Discussion: Processes and Thermal Distributionmentioning
confidence: 89%
“…[95][96][97] To the south permafrost is only found in sporadic patches above 3,000-3,100 m in the Sierra Nevada and the Atlas Mountains. 98,99 Latitude appears to be the dominant factor in the distribution of Mediterranean periglacial belts for massifs of similar altitudes.…”
Section: Discussion: Processes and Thermal Distributionmentioning
confidence: 97%
“…For example, between 2000 and 2017, 230 scientific publications have been counted within the Iberian network of the IPA . These publications involved 198 researchers belonging to 68 different institutions (29 Spanish, five Portuguese and 34 from other countries), allowing a considerable advance in the knowledge of the cryosphere of the Iberian Peninsula, but also of the polar regions (where Iberian researchers are making significant contributions), and in many other mountain regions …”
Section: Introductionmentioning
confidence: 99%