Synoptic variability in satellite altimeter‐derived radar freeboard of Arctic sea ice

C Nab, R Mallett, W Gregory, J Landy… - Geophysical …, 2023 - Wiley Online Library
Satellite observations of sea ice freeboard are integral to the estimation of sea ice thickness.
It is commonly assumed that radar pulses from satellite‐mounted Ku‐band altimeters …

[HTML][HTML] Wind redistribution of snow impacts the Ka-and Ku-band radar signatures of Arctic sea ice

V Nandan, R Willatt, R Mallett, J Stroeve… - The …, 2023 - tc.copernicus.org
Wind-driven redistribution of snow on sea ice alters its topography and microstructure, yet
the impact of these processes on radar signatures is poorly understood. Here, we examine …

MEMLS3&a: Microwave Emission Model of Layered Snowpacks adapted to include backscattering

M Proksch, C Mätzler, A Wiesmann… - Geoscientific Model …, 2015 - gmd.copernicus.org
The Microwave Emission Model of Layered Snowpacks (MEMLS) was originally developed
for microwave emissions of snowpacks in the frequency range 5–100 GHz. It is based on six …

Microwave scattering coefficient of snow in MEMLS and DMRT-ML revisited: the relevance of sticky hard spheres and tomography-based estimates of stickiness

H Löwe, G Picard - The Cryosphere, 2015 - tc.copernicus.org
The description of snow microstructure in microwave models is often simplified to facilitate
electromagnetic calculations. Within dense media radiative transfer (DMRT), the …

Micro-mechanical insights into the dynamics of crack propagation in snow fracture experiments

G Bobillier, B Bergfeld, J Dual, J Gaume… - Scientific Reports, 2021 - nature.com
Dry-snow slab avalanches result from crack propagation in a highly porous weak layer
buried within a stratified and metastable snowpack. While our understanding of slab …

A Poisson shot noise model for micro-penetration of snow

H Löwe, A Van Herwijnen - Cold Regions Science and Technology, 2012 - Elsevier
As a common starting point for the interpretation of SnowMicroPenetrometer (SMP) data the
penetration force is interpreted as a superposition of spatially uncorrelated ruptures of …

Micrometeorological and morphological observations of surface hoar dynamics on a mountain snow cover

F Stössel, M Guala, C Fierz, C Manes… - Water Resources …, 2010 - Wiley Online Library
The formation, growth, and destruction of surface hoar crystals is an important feature of
mountain snow covers as buried surface hoar layers are a frequent weak layer leading to …

Effect of small-scale snow surface roughness on snow albedo and reflectance

T Manninen, K Anttila, E Jääskeläinen… - The Cryosphere …, 2020 - tc.copernicus.org
The primary goal of this paper is to present a model of snow surface albedo accounting for
small-scale surface roughness effects. The model is based on photon recollision probability …

An improved machine to produce nature-identical snow in the laboratory

S Schleef, M Jaggi, H Löwe, M Schneebeli - Journal of Glaciology, 2014 - cambridge.org
We present an improved machine to produce nature-identical snow in a cold laboratory for
reproducible experiments. The machine is based on the common supersaturation principle …

Aerodynamic roughness length of fresh snow

C Gromke, C Manes, B Walter, M Lehning… - Boundary-Layer …, 2011 - Springer
This study presents the results from a series of wind-tunnel experiments designed to
investigate the aerodynamic roughness length z 0 of fresh snow under no-drift conditions. A …