Carbon cycle ; Ecosystem ; Ecotone ; Forest ; Model ; Montana ; Primary production ; Snow ; Soil moisture ; Tree line ; Tundra ; United States of America
The purpose of this research is to evaluate the relative importance of selected processes (snow redistribution and winter dessication) important at the alpine treeline ecotone (ATE) using an existing physiologically mechanistic model, FOREST-BGC
Altai Mountains ; Altayskiy Kraj ; Asian part of Russia ; Geographical information system ; Geomorphology ; Hydrology ; Research technique ; Snow
in geomorphological and related case studies. Examples are pressented of the successful use of GPS and GIS to study hydrology and snow patch regime from the recent GeoAltai expedition to Southern Siberia.
Asian part of Russia ; Atmosphere ; Baikal ; Chemical pollution ; Eastern Siberia ; Geosystem ; High mountain ; Lacustrine basin ; Lake ; Pollution ; Snow ; Snow cover
California ; Debris flow ; Mass movement ; Mountain ; Natural hazards ; Precipitation ; Sierra Nevada ; Slope dynamics ; Snow ; United States
for debris flows in the southern Sierra Nevada include intense rainfall, rain-on-snow storms, and seasonal melting of heavy snowpacks. Movement typically occurs at depths between 0.3 and 5 m below ground surface.
topical environmental issues of public and scientific concern with the factual world. The A. studies the climatic trends and variability, snow, ice and periglacial activity, stratospheric ozone, plant cover-tundra and the boreal forest, pollution of air
Aerial photography ; Avalanche ; Debris flow ; Geographical information system ; Montana ; Slope ; Slope dynamics ; Snow ; Terminology ; Tree line ; United States of America
Nearly 200 analyses of meltwaters, ice and snow from three alpine glacial sites in carbonate terrain are summarized and discussed in terms of sources of solutes and kinetic controls on the progress of weathering reactions. Most data derive from
on the initial content of snow and icemelt, which may be controlled by the rate of melting, and the kinetic balance between O2 losses (e.g. sulphide oxidation, microbial respiration) and gains (e.g. diffusion of O2 into solution).
polygons is connected with cracking of the seasonnaly frozen surface layer combined with rapid infilling of the cracks by sand, gravel, and stones as a result of sorting of surface material due to wind action, rainsplash, drifting snow, and probably also