Slow Mass Movement in the Taisetsu Mountains, Hokkaido, Japan

Sato, Tatsuaki; Kurashige, Yoshimasa; Hirakawa, Kazuomi

doi:10.1002/(sici)1099-1530(199709)8:3<347::aid-ppp257>3.0.co;2-u

Cited by 12 publications

(5 citation statements)

References 13 publications

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“…This suggests that the poorly saturated soil cannot move downslope even during the diurnal freeze-thaw cycles, whereas the wellsaturated soil can move downslope even in the absence of the freeze-thaw cycles. Such a result agrees with the findings of Van Asch et al (1989), who showed the possibility of continuous (viscous) creep in shallow soils even in the absence of frost creep by means of laboratory experiments, although Matsuoka (1996) and Sato et al (1997) suggest that the shallow frost creep is likely to occur when high soil moisture content occurs during the freeze-thaw period. The large downslope displacement in the monsoon season in Kangchenjunga is judged to be of the first type (i.e.…”

Section: Discussionsupporting

confidence: 92%

Slow mass movement in the Kangchenjunga Area, Eastern Nepal Himalaya

Regmi

Watanabe

2008

Himalayan Journal of Sciences

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Section: Discussionsupporting

confidence: 92%

Slow mass movement in the Kangchenjunga Area, Eastern Nepal Himalaya

Regmi

Watanabe

2008

Himalayan Journal of Sciences

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“…Yamada 1997;Sato et al 1997). Soil temperature values were used for determining whether the soil was freezing or thawing.…”

Section: Methodsmentioning

confidence: 99%

“…The soil displacement data obtained by the strain-probe can be disturbed by vertical soil displacements caused by frost-heaving and subsequent thaw-settlement processes (e.g. Yamada 1997;Sato et al 1997). Soil temperature values were used for determining whether the soil was freezing or thawing.…”

Section: Methodsmentioning

confidence: 99%

Gelifluction within a solifluction lobe in the kärkevagge valley, swedish lapland

Matsumoto

Ishikawa

2002

Geografiska Annaler: Series A, Physical Geography

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Soil displacement, soil temperature, depths of thaw plane and groundwater level were continuously monitored during the period from July 1999 to June 2000 within a solifluction lobe in the Kärkevagge valley, northern Sweden. The strain-probe method was used to measure soil displacement, and we found significant soil displacements in the thawing period 2000. These displacements were the result of gelifluction. The ice content profile showed that gelifluction occurred at the same time as the thaw plane reached the layers with high ice content at shallow soil depths (0-6 and 16-25 cm deep). In contrast, gelifluction did not occur when the thaw plane reached the layers with high ice content at greater depth (46-49 cm deep). These observations indicate that thawing of ice lenses in the near-surface layer triggers gelifluction.

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“…Such a result agrees with the findings of Van Asch et al . (1989), who showed the possibility of continuous (viscous) creep in shallow soils even in the absence of frost creep by means of laboratory experiments, although Matsuoka (1996) and Sato et al . (1997) suggest that the shallow frost creep is likely to occur when high soil moisture content occurs during the freeze–thaw period.…”

Section: Discussionmentioning

confidence: 99%

Slow mass movement in the Kangchenjunga area, eastern Nepal Himalaya

Regmi¹,

Watanabe²

2005

Island Arc

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The rates of the accumulated and continuous displacement of solifluction lobes in the Kangchenjunga area, eastern Nepal Himalaya, were determined using glass fiber tubes and a strain probe. Ground temperature, precipitation and soil moisture were monitored at two sites, whose altitude differed by approximately 100 m, to understand the solifluction process. The average movement rate of the glass fiber tubes on a 31° slope at altitudes of 5412–5414 m a.s.l. was approximately 11 mm/year, being almost threefold greater than that observed on a 22° slope at 5322–5325 ma.s.l. There was no significant difference in the depth of displacement at these sites. The continuous displacement measurement near the ground surface at 5414 m showed permanent downslope movement from early July. Such movement may be attributed to additional moisture supply during the monsoon season. The amplitude of the displacement cycle was highest at the ground surface, and decreased to virtually zero at and below 20 cm in depth. Probable factors leading to the relatively slow rates of downslope displacement at the surface and depth at the studied altitudes are the lack of concurrence of the freeze–thaw cycles and the high moisture condition in the soil, and the low moisture retention capacity of the soil because of steep slopes and superficial desiccation. The rate of displacement may be more pronounced at altitudes above 5600 m because of the freeze–thaw cycles during the summer season.

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Slow Mass Movement in the Taisetsu Mountains, Hokkaido, Japan

Cited by 12 publications

References 13 publications

Slow mass movement in the Kangchenjunga Area, Eastern Nepal Himalaya

Slow mass movement in the Kangchenjunga Area, Eastern Nepal Himalaya

Gelifluction within a solifluction lobe in the kärkevagge valley, swedish lapland

Slow mass movement in the Kangchenjunga area, eastern Nepal Himalaya

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