Results 31 to 40 of about 934,243 (233)

Microstructure in patients with visual snow syndrome: an ultra-high field morphological and quantitative MRI study

open access: yesBrain Communications, 2022
Visual snow syndrome is a neurological condition characterized by continuous visual disturbance and a range of non-visual symptoms, including tinnitus and migraine. Little is known about the pathological mechanisms underlying visual snow syndrome.
M. Strik   +6 more
semanticscholar   +1 more source

X-Ray Tomography-Based Microstructure Representation in the Snow Microwave Radiative Transfer Model

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2021
The modular Snow Microwave Radiative Transfer (SMRT) model simulates microwave scattering behavior in snow via different selectable theories and snow microstructure representations, which is well suited to intercomparisons analyses.
M. Sandells   +11 more
semanticscholar   +1 more source

Microstructure-based modeling of snow mechanics: a discrete element approach [PDF]

open access: yesThe Cryosphere, 2015
Rapid and large deformations of snow are mainly controlled by grain rearrangements, which occur through the failure of cohesive bonds and the creation of new contacts. We exploit a granular description of snow to develop a discrete element model based on
P. Hagenmuller, G. Chambon, M. Naaim
doaj   +1 more source

The influence of snow microstructure on dual-frequency radar measurements in a tundra environment

open access: yesRemote Sensing of Environment, 2018
Recent advancement in the understanding of snow-microwave interactions has helped to isolate the considerable potential for radar-based retrieval of snow water equivalent (SWE).
J. King   +10 more
semanticscholar   +1 more source

Editorial: About the Relevance of Snow Microstructure Study in Cryospheric Sciences

open access: yesFrontiers in Earth Science, 2020
Univ. Grenoble Alpes, CNRS, IGE, Grenoble, France, Université Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d’Études de la Neige, Grenoble, France, Université Grenoble Alpes, INRAE, UR ETNA, St-Martin-d’Hères, France, Ecole ...
M. Montagnat   +4 more
semanticscholar   +1 more source

Sodankylä manual snow survey program [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2016
The manual snow survey program of the Arctic Research Centre of the Finnish Meteorological Institute (FMI-ARC) consists of numerous observations of natural seasonal taiga snowpack in Sodankylä, northern Finland.
L. Leppänen   +4 more
doaj   +1 more source

Microstructural characterization of snow, firn and ice [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2019
This paper provides an overview of techniques used to characterize the microstructure of snow, firn and ice. These range from traditional optical microscopy techniques such as examining thin sections between crossed polarizers to various electron-optical and X-ray techniques.
openaire   +2 more sources

Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter [PDF]

open access: yes, 2015
During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites.
Derksen, Chris   +7 more
core   +1 more source

Enhancing simulations of snowpack properties in land surface models with the Soil, Vegetation and Snow scheme v2.0 (SVS2) [PDF]

open access: yesGeoscientific Model Development
Snow microstructure – characterized by density, grain size, grain shape and arrangement – fundamentally determines snowpack macroscopic properties.
V. Vionnet   +14 more
doaj   +1 more source

Changes in microstructure of snow under large deformations [PDF]

open access: yesJournal of Glaciology, 1991
AbstractA set of microstructural variables is selected to characterize the behavior of snow. Corresponding mathematical relations from quantitative stereology theory are presented along with relations and techniques required for numerical evaluation. An experimental investigation is carried out to determine changes in these variables for snow subjected
Michael Q. Edens, Robert L. Brown
openaire   +1 more source

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