Results 31 to 40 of about 8,007 (257)

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

Convection of snow: when and why does it happen?

open access: yesFrontiers in Earth Science, 2023
Convection of water vapor in snowpacks is supposed to have a major impact on snow density and microstructure profiles with strong implications for the thermal regime and snow stability.
Mahdi Jafari   +3 more
doaj   +1 more source

GPR results for indicating layers of snow strata [PDF]

open access: yesE3S Web of Conferences, 2023
The authors of this article describe the results of GPR tests for indicating the layers of snow strata and determining their properties, allowing for forecasting of avalanche hazards.
Sidorenko A.I., Bobrova D.A.
doaj   +1 more source

Parameterization of the snow density in the top snow layer.

open access: yesJournal of the Japanese Society of Snow and Ice, 1988
積雪表層数cmの密度の時間変化を, 粘性圧縮理論に基づいてパラメータ化した.圧縮粘性係数は, 積雪密度と平均気温の関数として表した.計算結果によれば, 積雪密度は最終降雪後, 時間と共に増加し, 高温時の方が低温時よりも増加速度が大きい.密度の計算値と実測値は±0.05g・cm-3の精度で一致した.
KONDO, Junsei, NUMATA, Yoichi
openaire   +2 more sources

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

Spatially extensive estimates of annual accumulation in the dry snow zone of the Greenland Ice Sheet determined from radar altimetry [PDF]

open access: yes, 2010
We present estimates of accumulation rate along a 200 km transect ranging in elevation from 2750 to 3150 m in the dry snow zone on the western slope of the Greenland Ice Sheet.
Guo, Q.   +21 more
core   +1 more source

Surface snow density along an overland traverse between Kohnen Station and former Plateau Station (East Antarctica)

open access: yes, 2021
Surface mass balances of polar ice sheets are essential to estimate the contribution of ice sheets to sea level rise. Uncertain snow and firn densities lead to significant uncertainties in surface mass balances, especially in the interior regions of the ...
Kipfstuhl, Sepp   +4 more
core   +1 more source

Georadar Measurements for the Snow Cover Density [PDF]

open access: yesAmerican Journal of Applied Sciences, 2009
Ground Probing Radar (GPR) devices is adopted for the analysis of thickness and the mechanical properties (density) of the snow cover in some test site in Alps, in Northern Italy. The performances of standard radar systems for the snow cover characterisation are analysed, the main aim is to assess the reliability of the method to estimate the snow ...
openaire   +2 more sources

Implications of spatial distributions of snow mass and melt rate for snow-cover depletion: observations in a subarctic mountain catchment [PDF]

open access: yes, 2004
Spatial statistics of snow water equivalent (SWE) and melt rate were measured using spatially distributed, sequential ground surveys of depth and density in forested, shrub and alpine tundra environments over several seasons within a 185 km(2) mountain ...
Pomeroy, J   +2 more
core   +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

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