Results 21 to 30 of about 95,351 (282)

On the issue of studying the size of dust particles in coal mining areas using the depositing ability of the snow cover

open access: yesRUDN Journal of Ecology and Life Safety, 2022
The analysis of the particle size of suspended solids in snow samples from various areas near the coal-mining enterprise “Razrez Arshanovsky” LLC in the Republic of Khakassia.
Alena V. Sumina   +3 more
doaj   +1 more source

Influence of the melting temperature on the measurement of the mass concentration and size distribution of black carbon in snow [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
The influence of temperature and time of snow sample melting on the measurement of mass concentration and size distribution of black carbon (BC) in snow was evaluated experimentally.
T. Kinase   +4 more
doaj   +1 more source

Review and uncertainty assessment of size-resolved scavenging coefficient formulations for below-cloud snow scavenging of atmospheric aerosols [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Theoretical parameterizations for the size-resolved scavenging coefficient for atmospheric aerosol particles scavenged by snow (Λsnow) need assumptions regarding (i) snow particle–aerosol particle collection efficiency E, (ii) snow-particle size ...
L. Zhang, X. Wang, M. D. Moran, J. Feng
doaj   +1 more source

Mass of different snow crystal shapes derived from fall speed measurements [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Meteorological forecast and climate models require good knowledge of the microphysical properties of hydrometeors and the atmospheric snow and ice crystals in clouds, for instance, their size, cross-sectional area, shape, mass, and fall speed. Especially
S. Vázquez-Martín   +2 more
doaj   +1 more source

Shape dependence of snow crystal fall speed [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Improved snowfall predictions require accurate knowledge of the properties of ice crystals and snow particles, such as their size, cross-sectional area, shape, and fall speed.
S. Vázquez-Martín   +2 more
doaj   +1 more source

Sinking flux of particulate organic matter in the oceans: Sensitivity to particle characteristics [PDF]

open access: yes, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Omand, M. M., Govindarajan, R., He, J., & Mahadevan, A. Sinking flux of particulate organic matter in
Govindarajan, Rama   +3 more
core   +2 more sources

Development of a new semi-empirical parameterization for below-cloud scavenging of size-resolved aerosol particles by both rain and snow [PDF]

open access: yesGeoscientific Model Development, 2014
A parameter called the scavenging coefficient Λ is widely used in aerosol chemical transport models (CTMs) to describe below-cloud scavenging of aerosol particles by rain and snow.
X. Wang, L. Zhang, M. D. Moran
doaj   +1 more source

Impact of Vehicle Soot Agglomerates on Snow Albedo

open access: yesAtmosphere, 2022
Snow covers are very sensitive to contamination from soot agglomerates derived from vehicles. A spectroradiometric system covering a wavelength from 300 to 2500 nm with variable resolution (from 2.2 to 7.0 nm) was used to characterize the effect of soot ...
Sofía González-Correa   +8 more
doaj   +1 more source

Coincident in situ and triple-frequency radar airborne observations in the Arctic [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
The dataset collected during the Radar Snow Experiment (RadSnowExp) presents the first-ever airborne triple-frequency radar observations combined with almost perfectly co-located and coincident airborne microphysical measurements from a single platform ...
C. M. Nguyen   +9 more
doaj   +1 more source

A study on the size of snow particles in powder-snow avalanches [PDF]

open access: yesAnnals of Glaciology, 2001
AbstractIn this work, we study the size of the particles involved in a powder-snow avalanche. To determine this value, we study all the phenomena encountered by the particles before they arrive in the “body” of the avalanche. We study the boundary layer which is at the bottom of the avalanche. We determine, with the help of experimental data, the range
openaire   +3 more sources

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