Results 31 to 40 of about 265,793 (302)

Modeling bulk density and snow water equivalent using daily snow depth observations [PDF]

open access: yesThe Cryosphere, 2013
Abstract. Bulk density is a fundamental property of snow relating its depth and mass. Previously, two simple models of bulk density (depending on snow depth, date, and location) have been developed to convert snow depth observations to snow water equivalent (SWE) estimates. However, these models were not intended for application at the daily time step.
J. L. McCreight, E. E. Small
openaire   +3 more sources

A prototype passive microwave retrieval algorithm for tundra snow density [PDF]

open access: yesThe Cryosphere
Snow density data are important for a variety of applications, yet, to our knowledge, there are few methods for estimating spatiotemporal varying snow density in the Arctic environment.
J. J. Welch, R. E. J. Kelly
doaj   +1 more source

Investigating ANN architectures and training to estimate snow water equivalent from snow depth [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Canada's water cycle is driven mainly by snowmelt. Snow water equivalent (SWE) is the snow-related variable that is most commonly used in hydrology, as it expresses the total quantity of water (solid and liquid) stored in the snowpack.
K. F. F. Ntokas   +4 more
doaj   +1 more source

The Impact of Diffusive Water Vapor Transport on Snow Profiles in Deep and Shallow Snow Covers and on Sea Ice

open access: yesFrontiers in Earth Science, 2020
Water vapor transport has been highlighted as a critical process in Arctic snowpacks, shaping the snow cover structure in terms of density, thermal conductivity, and temperature profile among others.
Mahdi Jafari   +14 more
doaj   +1 more source

Intercomparison of snow density measurements: bias, precision, and vertical resolution [PDF]

open access: yesThe Cryosphere, 2016
Density is a fundamental property of porous media such as snow. A wide range of snow properties and physical processes are linked to density, but few studies have addressed the uncertainty in snow density measurements.
M. Proksch   +3 more
doaj   +1 more source

Experimental investigation of dielectric properties of seasonal snow at field observatories in the northwest Himalaya

open access: yesAnnals of Glaciology, 2016
Radio-echo sounding techniques are very useful for fast profiling of seasonal snowpack. Ground-penetrating radar (GPR) is used widely for various cryospheric applications, such as snow/glacier depth estimation, snow layer identification and snow water ...
Kamal K. Singh   +5 more
doaj   +1 more source

Observations of snowpack properties to evaluate ground-based microwave remote sensing [PDF]

open access: yes, 2013
Active microwave radar has been shown to have great potential for estimating snow water equivalent (SWE) globally from space. To help evaluate optimal active microwave sensor configurations to observe SWE, we evaluated ground-based Frequency Modulated ...
Emad Tajkhorshid (243146)   +5 more
core   +2 more sources

Snow Concentration and Effective Air Density During Snow-Falls [PDF]

open access: yesJournal of Glaciology, 1983
AbstractThe mass concentration of falling snow ρs can be estimated from the snow-fall rate (accumulation rate) qv if there is no significant wind. Limited data show only a weak relation between fall velocity ut and qv (with qv in g/cm2 h). Consequently there is a strong correlation (r2 = 0.97) between ρs and qv (with qv in g/cm2 h).
openaire   +1 more source

Simple estimation of snow density in an Alpine region

open access: yesJournal of Hydrology: Regional Studies, 2016
Study region: The Upper Adige catchment, South Tyrol, Italy. Study focus: The empirical snow density models of Jonas et al. (2009) and Sturm et al. (2010), are compared with a simple equation that predicts snow density based on the day of the year only ...
A. Pistocchi
doaj   +1 more source

Predicting snow density using meteorological data [PDF]

open access: yesMeteorological Applications, 2007
AbstractThis paper presents a simple method for predicting snow density by use of weather data. Six hundred and eight snow density (bulk weight density) measurements from the period 1967–1986 are used in a multiple regression analysis. The measurements are performed at 105 sites in the Ås area situated in Akershus County in southeast Norway.
Vivian Meløysund   +3 more
openaire   +1 more source

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