An example of a low-temperature-triggered landslide

Govi, Mario; Pasuto, Alessandro; Silvano, S.; Siorpaes, C.

doi:10.1016/0013-7952(93)90018-8

Cited by 11 publications

(4 citation statements)

References 3 publications

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“…On the 31st January 1991 ip the municipality of Zoldo Alto (Italian Eastern Alps), in an area already known for its precarious stability conditions a mass movement took place which, owing to its rapid evolution determined an alarm situation and well defined hazard conditions for the underlying village of Molin (Angeli et al 1992;Govi et al 1993).…”

Section: The Ru Delle Roe Landslidementioning

confidence: 99%

Floods and Landslides: Integrated Risk Assessment

Casale¹,

Margottini²

1999

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Section: The Ru Delle Roe Landslidementioning

confidence: 99%

Floods and Landslides: Integrated Risk Assessment

Casale¹,

Margottini²

1999

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“…Temperature can also be related to soil moisture 34 and evapotranspiration 35 , capable of changing landslide-triggering precipitation thresholds 14 , 36 . Examples of thermally controlled landslide slip zones have been reported, such as the Ru delle Roe 37 and Touge 38 landslides. In the latter case, landslide activity was explained as a function of temperature in the shear zone, consistently with experiments showing a 13% decrease in shear resistance upon cooling from 25 °C to 9 °C.…”

Section: Introductionmentioning

confidence: 99%

Surface temperature controls the pattern of post-earthquake landslide activity

Loche

Scaringi

Yunus

et al. 2022

Sci Rep

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The patterns and controls of the transient enhanced landsliding that follows strong earthquakes remain elusive. Geostatistical models can provide clues on the underlying processes by identifying relationships with a number of physical variables. These models do not typically consider thermal information, even though temperature is known to affect the hydro-mechanical behavior of geomaterials, which, in turn, controls slope stability. Here, we develop a slope unit-based multitemporal susceptibility model for the epicentral region of the 2008 Wenchuan earthquake to explore how land surface temperature (LST) relates to landslide patterns over time. We find that LST can explain post-earthquake landsliding while it has no visible effect on the coseismic scene, which is dominated by the strong shaking. Specifically, as the landscape progressively recovers and landslide rates decay to pre-earthquake levels, a positive relationship between LST and landslide persistence emerges. This seems consistent with the action of healing processes, capable of restoring the thermal sensitivity of the slope material after the seismic disturbance. Although analyses in other contexts (not necessarily seismic) are warranted, we advocate for the inclusion of thermal information in geostatistical modeling as it can help form a more physically consistent picture of slope stability controls.

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“…In some cases, slope deglaciation has also been considered to contribute to the slope instability. Finally, freezing conditions at the slope surface, characteristic of the winter season, can also be considered a preparatory factor for failure, or even a trigger, as they prevent liquid water circulating in the slope from escaping, thus leading to water pressure build-up (Govi et al, 1993).…”

mentioning

confidence: 99%