Results 41 to 50 of about 1,292,395 (359)
Can model-based avalanche forecasts match the discriminatory skill of human danger-level forecasts? A comparison from Switzerland [PDF]
Natural Hazards and Earth System SciencesIn recent years, physics-based snowpack models combined with machine-learning techniques have gained momentum in public avalanche forecasting. When integrated with spatial interpolation methods, these approaches enable fully model-driven predictions of ...
F. Techel +4 more
doaj +1 more source
Fire and windthrow in forests: Winners and losers in Neuropterida and Mecoptera [PDF]
Alpine Entomology, 2019 The mid-term impact of forest fires and windthrows on species compositions in the insect orders Neuroptera, Raphidioptera and Mecoptera was assessed in Swiss forests using standardized flight interception traps.
Peter Duelli +3 more
doaj +3 more sources
Plant phenology and seasonal nitrogen availability in Arctic snowbed communities [PDF]
, 2006 Thesis (M.S.) University of Alaska Fairbanks, 2006This study was part of the International Tundra Experiment (ITEX) and examined the effects of increased winter snow depth and decreased growing season length on the phenology of four arctic plant species (
Borner, Andrew P.
core
The Chernobyl Reference Horizon (?) in the Greenland Ice Sheet [PDF]
, 1989 Published reports of the presence of radioactive debris from the Chernobyl reactor accident in snow on the Greenland ice sheet raised the strong prospect that such debris might constitute a valuable time stratigraphic marker all over the ice sheet. Large
Dibb, Jack E.
core +2 more sources
Wind‐driven seed dispersal differentially promotes seed trapping and retention across alpine plants
American Journal of Botany, EarlyView.Abstract Premise Seed dispersal can mediate species interactions between plants across life stages. Plants can physically stop seed movement (seed trapping) and prevent further dispersal following entrapment (seed retention). We therefore hypothesized seed trapping and retention rates depend on the physical attributes of interacting seeds and plants ...
Courtenay A. Ray +7 more
wiley +1 more source
Wind tunnel experiments: cold-air pooling and atmospheric decoupling above a melting snow patch [PDF]
The Cryosphere, 2016 The longevity of perennial snowfields is not fully understood, but it is known that strong atmospheric stability and thus boundary-layer decoupling limit the amount of (sensible and latent) heat that can be transmitted from the atmosphere to the snow ...
R. Mott +4 more
doaj +1 more source
A Digital Archive of Northern Hemisphere Snow Cover, November 1966 through December 1980 [PDF]
, 1982 The purpose of this article is to acquaint the research community with a new data base—a digitized archive of Northern Hemisphere snow cover. Historically, those researchers who needed snow cover data for climatic and atmospheric boundary layer studies ...
Dewey, Kenneth F., Heim, Richard, Jr.
core +1 more source
A Two-Threshold Model for Scaling Laws of Non-Interacting Snow Avalanches
, 2004 The sizes of snow slab failure that trigger snow avalanches are power-law distributed. Such a power-law probability distribution function has also been proposed to characterize different landslide types.
C. Dussauge +11 more
core +3 more sources
The physics of snow crystals [PDF]
, 2005 We examine the physical mechanisms governing the formation of snow crystals, treating this problem as a case study of the dynamics of crystal growth from the vapour phase.
Libbrecht, Kenneth G.
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American Journal of Botany, EarlyView.Abstract Premise Species of Deuterocohnia (17 spp.) show extraordinary variation in elevation (0–3900 m a.s.l.) and growth forms, and many have narrow geographic distributions in the west‐central Andes and the Peru‐Chile coast. Previous research using few plastid and nuclear loci failed to produce well‐resolved or supported phylogenies.
Bing Li +5 more
wiley +1 more source