Results 31 to 40 of about 95,351 (282)

Comparison of digital and manual methods of snow particle size estimation [PDF]

open access: yesHydrology Research, 2012
Maintaining long time series of observations of the Cryosphere is a key issue in climate research. Long observational time series involve problems due to change in methodology or observers. In order to extend time series and introduce new methods, careful comparisons must be made to ensure homogeneity in the observational data.
Rickard Pettersson   +3 more
openaire   +1 more source

Micromechanical modeling of snow failure [PDF]

open access: yesThe Cryosphere, 2020
Dry-snow slab avalanches start with the formation of a local failure in a highly porous weak layer underlying a cohesive snow slab. If followed by rapid crack propagation within the weak layer and finally a tensile fracture through the slab, a slab ...
G. Bobillier   +7 more
doaj   +1 more source

Microphysical properties and fall speed measurements of snow ice crystals using the Dual Ice Crystal Imager (D-ICI) [PDF]

open access: yesAtmospheric Measurement Techniques, 2020
Accurate predictions of snowfall require good knowledge of the microphysical properties of the snow ice crystals and particles. Shape is an important parameter as it strongly influences the scattering properties of the ice particles, and thus their ...
T. Kuhn, S. Vázquez-Martín
doaj   +1 more source

The method of intelligent wireless sensor to improve the water permeability of permeable asphalt concrete pavement

open access: yesIET Networks, EarlyView., 2022
Abstract This research aims to study the intelligent wireless sensor to improve the water permeability of permeable asphalt concrete pavement. The water permeability of pavement is extremely important for the traffic environment. This study first briefly introduces the background and significance analysis, and then exemplifies the deployment algorithm ...
Xingmei Zhang, Cong Xu, Qi Lei
wiley   +1 more source

Experimental Study on Distribution of Snow Grain Size for Internal Mixing Snow Makers

open access: yesZhileng xuebao, 2023
The grain size of artificial snow in a simulated indoor environment was measured using a laser particle size analyzer to examine the growth law of snow crystals.
Zhao Wei   +6 more
doaj  

Ultraviolet germicidal irradiation of melted snow and ice samples: inactivation of microorganisms and effects on insoluble microparticles

open access: yesJournal of Glaciology, 2022
The long-term refrigerated storage of melted snow and/or ice samples for analyses of insoluble microparticles (hereafter, microparticles) may be limited by increases in the biological particle concentration caused by microbial growth after ~1–2 weeks. In
Fumio Nakazawa, Kumiko Goto-Azuma
doaj   +1 more source

A summer time series of particulate carbon in the air and snow at Summit, Greenland [PDF]

open access: yes, 2007
Carbonaceous particulate matter is ubiquitous in the lower atmosphere, produced by natural and anthropogenic sources and transported to distant regions, including the pristine and climate-sensitive Greenland Ice Sheet.
Bergin, M   +3 more
core   +2 more sources

Snow microphysical retrieval from the NASA D3R radar during ICE-POP 2018 [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
A method is developed to use both polarimetric and dual-frequency radar measurements to retrieve microphysical properties of falling snow. It is applied to the Ku- and Ka-band measurements of the NASA dual-polarization, dual-frequency Doppler radar (D3R)
S. J. Munchak   +7 more
doaj   +1 more source

Thermal infrared spectroscopy of Europa and Callisto [PDF]

open access: yes, 2000
The trailing hemispheres of Europa and Callisto were observed at 9–13 μm, and a spectrum of Europa with better spectral resolution and a better signal-to-noise ratio than was previously possible has been derived.
Brown, Michael E., Mills, Franklin P.
core   +1 more source

Particle Size Sampling and Object-Oriented Image Analysis for Field Investigations of Snow Particle Size, Shape, and Distribution

open access: yesArctic, Antarctic, and Alpine Research, 2013
Abstract Snow particle size is an important parameter strongly affecting snow cover broadband albedo from seasonally snow covered areas and ice sheets. It is also important in remote sensing analyses because it influences the reflectance and scattering properties of the snow.
Susanne Ingvander   +5 more
openaire   +1 more source

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