Results 11 to 20 of about 95,351 (282)

Measurement of snow particle size and velocity in avalanche powder clouds [PDF]

open access: yesJournal of Glaciology, 2017
Particle size, particle speed and airflow speed have been measured in the powder snow clouds of avalanches to investigate the suspension and transportation processes of snow particles. The avalanches were artificially triggered at the Lautaret full-scale
YOICHI ITO   +6 more
doaj   +4 more sources

Measurements and modelling of snow particle size and shortwave infrared albedo over a melting Antarctic ice sheet [PDF]

open access: yesThe Cryosphere, 2015
The albedo of a snowpack depends on the single-scattering properties of individual snow crystals, which have a variety of shapes and sizes, and are often bounded in clusters.
R. Pirazzini   +4 more
doaj   +4 more sources

Characteristics of Snow Particle Size Distribution in the PyeongChang Region of South Korea [PDF]

open access: yesAtmosphere, 2020
Snow particle size distribution (PSD) information is important in understanding the microphysics and quantitative precipitation estimation over complex terrain. Measurement and interpretation of the snow PSDs is a topic of active research.
Tiantian Yu   +3 more
doaj   +2 more sources

The importance of particle size distribution and internal structure for triple-frequency radar retrievals of the morphology of snow [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
The accurate representation of ice particles is essential for both remotely sensed estimates of clouds and precipitation and numerical models of the atmosphere.
S. L. Mason   +8 more
doaj   +6 more sources

Influencing Factors of Artificial Snow Particle Size under Natural Environmental Conditions

open access: yesZhileng xuebao
In this study, artificial snow is produced under natural conditions using a snowmaking machine, and the microscopic morphology of the snow crystals is obtained.
Yang Xiru   +4 more
doaj   +1 more source

Study of Overall Morphology and Particle-size Distribution of Spray Field in Gas–liquid Mixed Snow-makers

open access: yesZhileng xuebao, 2023
Since the Beijing Winter Olympic Games, the domestic ice and snow industry has grown rapidly, driven particularly by artificial snow parks with higher requirements in terms of both the quantity and the quality of artificial snow.
Hu Hengxiang   +4 more
doaj   +1 more source

Laser attenuation in falling snow correlated with measurements of snow particle size distribution [PDF]

open access: yesOptical Engineering, 2021
We investigate transmission through falling snow using a 3D imaging lidar at 1.56-μm wavelength. The lidar is based on the time-correlated single-photon counting technique. Experimental transmission data are compared with Mie theory transmission calculations based on snow particle size distribution simultaneously measured with a laser disdrometer.
Mattias Rahm   +2 more
openaire   +1 more source

Size of snow particles in a powder-snow avalanche [PDF]

open access: yesJournal of Glaciology, 2011
AbstractLittle quantitative information is available concerning the size of ice particles in the turbulent clouds of powder-snow avalanches. To quantify particle size distributions, we have developed an experimental device that collects particles in real-scale powder avalanches.
Rastello, Marie   +5 more
openaire   +2 more sources

Particle-Size Distribution of Pulverized Snow [PDF]

open access: yesJournal of Glaciology, 1959
AbstractA microscopic method for the determination of particle-size distribution of pulverized snow was worked out. The method gives satisfactory distribution curves, presenting the number of particles as a function of their cross-sectional “areas”. The measurements were made by means of a filar micrometer eyepiece, the snow particles being placed on a
Jellinek, H. H. G. (Hans Helmut Gunter), 1917-   +1 more
openaire   +1 more source

Ensemble mean density and its connection to other microphysical properties of falling snow as observed in Southern Finland [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
In this study measurements collected during winters 2013/2014 and 2014/2015 at the University of Helsinki measurement station in Hyytiälä are used to investigate connections between ensemble mean snow density, particle fall velocity and parameters of the
J. Tiira   +6 more
doaj   +1 more source

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