Results 11 to 20 of about 24,399 (259)

Observations and simulations of new snow density in the drifting snow-dominated environment of Antarctica

open access: yesJournal of Glaciology, 2023
Owing to drifting snow processes, snow accumulation and surface density in polar environments are variable in space and time. We present new field data of manual measurements, repeat terrestrial laser scanning and snow micro-penetrometry from Dronning ...
Nander Wever   +6 more
doaj   +1 more source

Snow density climatology across the former USSR [PDF]

open access: yesThe Cryosphere, 2014
Snow density is one of the basic properties used to describe snow cover characteristics, and it is a key factor for linking snow depth and snow water equivalent, which are critical for water resources assessment and modeling inputs.
X. Zhong, T. Zhang, K. Wang
doaj   +1 more source

Snow Particle Analyzer for Simultaneous Measurements of Snow Density and Morphology

open access: yesJournal of Geophysical Research: Atmospheres, 2023
AbstractThe detailed characterization of snow particles is critical for understanding the snow settling behavior and modeling the ground snow accumulation for various applications such as prevention of avalanches and snowmelt‐caused floods, etc. In this study, we present a snow particle analyzer for simultaneous measurements of various properties of ...
Jiaqi Li, Michele Guala, Jiarong Hong
openaire   +2 more sources

What drives basin scale spatial variability of snowpack properties in northern Colorado? [PDF]

open access: yesThe Cryosphere, 2014
This study uses a combination of field measurements and Natural Resource Conservation Service (NRCS) operational snow data to understand the drivers of snow density and snow water equivalent (SWE) variability at the basin scale (100s to 1000s km2 ...
G. A. Sexstone, S. R. Fassnacht
doaj   +1 more source

Obtaining sub-daily new snow density from automated measurements in high mountain regions [PDF]

open access: yesHydrology and Earth System Sciences, 2018
The density of new snow is operationally monitored by meteorological or hydrological services at daily time intervals, or occasionally measured in local field studies.
K. Helfricht   +4 more
doaj   +1 more source

Performance of snow density measurement systems in snow stratigraphies [PDF]

open access: yes, 2020
Abstract. Gravimetric and dielectric permittivity measuring systems are applied to measure snow density, but few studies have addressed differences between the two measurement systems under complex snowpack conditions. A field experiment was conducted to measure snow density using the two measurement systems in different stratigraphical layers ...
Jiansheng Hao   +4 more
openaire   +2 more sources

Representative surface snow density on the East Antarctic Plateau [PDF]

open access: yesThe Cryosphere, 2020
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 ...
A. H. Weinhart   +6 more
doaj   +1 more source

Impulse Radar Snow Surveys – Influence of Snow Density [PDF]

open access: yesHydrology Research, 2000
Snow cover water equivalent (SWE) is of major importance for planning of e.g. hydropower production in areas where a large proportion of the annual precipitation falls as snow. Radar technique can be used to determine SWE from the two-way travel time (twt) of a radar-wave propagation through a snowpack.
J. Bergström, H. Thunehed, A. Lundberg
openaire   +1 more source

Seasonal evolution of snow density and its impact on thermal regime of sea ice during the MOSAiC expedition [PDF]

open access: yesThe Cryosphere
Snow density is a crucial parameter for sea ice modelling at the physical process level. The seasonal evolution of surface (top 3 cm) and bulk (entire layer) snow densities observed during the MOSAiC expedition was investigated and used to assess four ...
Y. Cheng   +10 more
doaj   +1 more source

Linking lidar multiple scattering profiles to snow depth and snow density: an analytical radiative transfer analysis and the implications for remote sensing of snow

open access: yesFrontiers in Remote Sensing, 2023
Lidar multiple scattering measurements provide the probability distribution of the distance laser light travels inside snow. Based on an analytic two-stream radiative transfer solution, the present study demonstrates why/how these lidar measurements can ...
Yongxiang Hu   +13 more
doaj   +1 more source

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