Results 1 to 10 of about 953 (134)
Remote Sensing, 2021 Natural snow, one of the most important components of the cryosphere, is fundamentally a layered medium. In forward simulation and retrieval, a single-layer effective microstructure parameter is widely used to represent the emission of multiple-layer ...
Yue Yu, Jinmei Pan, Jiancheng Shi
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Unraveling the optical shape of snow [PDF]
Nature Communications, 2023 The reflection of sunlight off the snow is a major driver of the Earth’s climate. This reflection is governed by the shape and arrangement of ice crystals at the micrometer scale, called snow microstructure.
Alvaro Robledano +5 more
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Frontiers in Earth Science, 2020 Understanding the deposition history and signal formation in ice cores from polar ice sheets is fundamental for the interpretation of paleoclimate reconstruction based on climate proxies. Polar surface snow responds to environmental changes on a seasonal
Dorothea Elisabeth Moser +4 more
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International Journal of Digital Earth, 2021 Reliable microstructure measurement of snow is a requirement for microwave radiative transfer model validation. Snow specific surface area (SSA) can be measured using stereological methods, in which snow samples are cast in the field and photographed in ...
Jinmei Pan +8 more
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Testing the Strength of Buried Surface Hoar Weak Layers Under Combined Compression and Shear Loading
Geophysical Research LettersWe experimentally determined the multiaxial strength of weak layers of buried surface hoar using displacement‐controlled tests under combined normal and shear loading on a custom testing machine.
Jakob Schöttner +7 more
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Experimental and model-based investigation of the links between snow bidirectional reflectance and snow microstructure [PDF]
The Cryosphere, 2021 Snow stands out from materials at the Earth’s surface owing to its unique optical properties. Snow optical properties are sensitive to the snow microstructure, triggering potent climate feedbacks.
M. Dumont +10 more
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A casting method using contrast-enhanced diethylphthalate for micro-computed tomography of snow
Journal of Glaciology, 2021 Casting snow is necessary to prevent metamorphism and deformation prior to X-ray micro-computed tomography (μCT) imaging. Current methods are insufficient for large-scale field sampling of snow due to safety considerations associated with the casting ...
Michael Lombardo +2 more
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Microstructure representation of snow in coupled snowpack and microwave emission models [PDF]
The Cryosphere, 2017 This is the first study to encompass a wide range of coupled snow evolution and microwave emission models in a common modelling framework in order to generalise the link between snowpack microstructure predicted by the snow evolution models and ...
M. Sandells +5 more
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Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography
Journal of Glaciology, 2023 Once fallen, snow settles due to the combined effects of metamorphism and deformation of the ice matrix under gravity. To understand how these coupled processes affect snow evolution, we performed oedometric compression tests and continuously monitored ...
Antoine Bernard +3 more
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Arctic Snow Microstructure Experiment for the development of snow emission modelling [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2016 The Arctic Snow Microstructure Experiment (ASMEx) took place in Sodankylä, Finland in the winters of 2013–2014 and 2014–2015. Radiometric, macro-, and microstructure measurements were made under different experimental conditions of homogenous
W. Maslanka +9 more
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