Dendrogeomorphology was used to investigate past events on a cone affected by both debris flows and snow avalanches. The AA. report on results of 520 cores from 251 trees sampled on the Birchbach cone (Swiss Alps), for a 252 yr period, extending
from 1750 to 2002. Thereafter, the AA. assess the approximate area affected as well as the origin of past debris-flow and snow avalanche events on the cone using tree-ring records in conjunction with the results from geomorphic mapping.
Colorado ; Geochemistry ; Glacial flow ; Glacier ; Isotope analysis ; Meltwater ; Model ; Mountain ; Rock glacier ; Snow ; United States of America
the initiation of snow melt to the start of the next snow accumulation season. They then use that information to identify flow sources and pathways using quantitative, multi-component mixing models.
Based on the data of δO 18 in surface snow, snow pits, meltwater and the glacier-fed river water at Baishui Glacier No.1, Mt Yulong, the isotopic fractionation behaviors in the typical monsoonal temperate glacier system in winter and summer were
compared. The results indicate that the isotopic fractionation degree in summer is greater than that in winter, suggesting that the snow/ice melting is more intense in summer.
Cold area ; Geomorphometry ; Periglacial features ; Slope deposit ; Snow cover ; Soil properties ; Solifluction ; Spatial variation ; Sweden ; Vegetation
exist between morphometry and elevation, soil moisture and soil texture. At a regional scale, high soil moisture environments can be associated with larger dimensions. The turf-banked forms in the valleys are associated with deep seasonal snow cover
and therefore saturated conditions are believed to enhance gelifluction at these locations. The smaller forms on the vegetation- and snow-free summit sites are believed to be dominated by frost creep.
Geographical information system ; Modelling ; Mongolia ; Periglacial features ; Permafrost ; Plant canopy ; Radiation ; Snow cover ; Soil temperature ; Spatial distribution
. The measurements at 17 locations over a 2-year period, in the Lake Hövsgöl area, were used to analyse the influence of vegetation, solar radiation, surface wetness and snow cover on the ground thermal regime.
interactions between melting waters and the Dolomitic bedrock. The presence of ammonium ion in snow and ice samples is indicative of long-range global anthropogenic impact, which might be related to red snow events. Ammonium had a particular significance
Monthly precipitation samples were collected at Tsukuba City from 1992 to 2006, and isotope ratios of oxygen and hydrogen were analyzed for all samples. The isotope ratios of monthly precipitation have no remarkable trend in their seasonal change
. The processes contributing to the unique influence of lakes on permafrost are (in order of decreasing importance) : the ratio between winter and summer heat transfer coefficients, storage of accumulated summer heat beneath lake snow cover, and asymmetry of lake