منابع مشابه
Depth - hoar growth rates near a rocky outcrop
ObseJ'\'ati o ns o f sla b-m'a lanc h e releases in a lpin e te rra in hm'C led to th e hyp othesis t h a t roc ky o utcrop s ca n influence t he sp a ti a l d istri buti o n s o f tem perat ure a nd h eat fl ow in dry a lp ine snow co\'Crs a n d th us cont rol the local d i. t r ib uti on of de pth h oar. \ Vc inves ti gate th e efre cts or te rra in o n c rysta l g ro wth by usi ng a two-cl i...
متن کاملDepth - hoar growth rates near a rocky outcrop
Observations of slab-a\'alanche releases in alpine terrain ha\'e led to the hypothesis that rocky outcrops can influence thc spatial distributions of temperature and heat flow in dry alpine snow covers and thus c011lrol the local distribution of de pth hoar. \ Vc investigate the effects of terrain on crystal growth by using a two-dimensional finite element model of heat flow coupled with a mod...
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The long duration of the 2010 Eyjajallajökull eruption provided a unique opportunity to measure a widely dispersed volcanic ash cloud. Layers of volcanic ash were observed by the European Aerosol Research Lidar Network with a mean depth of 1.2 km and standard deviation of 0.9 km. In this paper we evaluate the ability of the Met Office’s Numerical Atmospheric-dispersion Modelling Environment (NA...
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This paper researches two key factors (angle and thickness) of a weak layer in relation to their influencing mechanism on slope stability. It puts forward the sliding surface angle and morphological model criteria for the control of rock slopes and realization of its failure mechanism. By comparing the Failure Modes and Safety Factors (Fs) obtained from numerical analysis, the influence pattern...
متن کاملSpectral measurements of surface hoar crystals
Surface hoar crystals are commonon the surface ofmountain snowcovers.Onceburied, layers of large plate-shaped surface hoar crystals are prone to releasing dangerous snow-slab avalanches. Since snow microstructure influences the optical properties of snow, remote sensors could potentially detect the formation of surface hoar and other snow types associated with avalanche release. The spectral re...
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ژورنال
عنوان ژورنال: The Cryosphere
سال: 2013
ISSN: 1994-0424
DOI: 10.5194/tc-7-1447-2013