The darkening effects of biological impurities on ice and snow have been recognised as a control on the surface energy balance of terrestrial snow, sea ice, glaciers and ice sheets. With a heightened interest in understanding the impacts of a changing climate on snow and ice processes, quantifying the impact of biological impurities on ice and snow albedo (“bioalbedo”) and its evolution through...

Snow water equivalent (SWE) of a snowpack is often measured along well-chosen transects representative of an area of interest, such as a drainage basin, to capture spatial distribution of SWE, which is of great interest for many applications. For example, it is a useful input to the new generation of hydrological models used for snow melt run-off predictions. A time-effective method to perform ...

Abstract. Snow avalanches are a major component of the mountain cryosphere, but little is known about factors controlling variability their deposit volumes. This study investigates influence avalanche path morphology on ca. 1500 volumes recorded between 2003 and 2018 in 77 snow paths French Alps. Different statistical techniques show slight significant link mean elevation orientation, with cont...

Recent measurements of nematic-smectic A pressure-temperature phase boundaries obtained in bilayer forming smectic A liquid crystals are analyzed. A thermodynamic model which accounts for the elliptical shape of the phase boundaries and which facilitates determination of the various parameters determining the phase boundary is presented and discussed.

bacteria play a major role in environmental processes. however, the spatial and seasonal variations and environmental impact factors on different bacterial groups have been poorly studied. in the present study, we compared the spatial and seasonal variations of two bacterial groups (acidobacteria, actinobacteria) from early snow melt and late snow melt locations in alpine tundra. the results re...

Seventeen new endemic species of the genus Eugenia L. (Myrtaceae) are proposed from Madagascar, including: Eugeniaandapae N. Snow, Eugeniabarriei N. Snow, Eugeniabemangidiensis N. Snow, Eugeniacalciscopulorum N. Snow, Eugeniadelicatissima N. Snow, Callm. & Phillipson, Eugeniaechinulata N. Snow, Eugeniagandhii N. Snow, Eugeniahazonjia N. Snow, Eugeniaiantarensis N. Snow, Eugeniamalcomberi N. Sno...