Brief communication: A continuous formulation of microwave scattering from fresh snow to bubbly ice from first principles

International audience Microwave remote sensing of the cryosphere demands a formulation of the scattering coefficient which can be applied over the entire range of relevant densities, from fresh snow to bubbly ice, at all frequencies and for any grain size and snow type. Most challenging are interme...

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Bibliographic Details
Published in:The Cryosphere
Main Authors: Picard, Ghislain, Löwe, Henning, Mätzler, Christian
Other Authors: Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2022
Subjects:
[SDU]Sciences of the Universe [physics]
The Cryosphere
Online Access:https://insu.hal.science/insu-03859255
https://insu.hal.science/insu-03859255/document
https://insu.hal.science/insu-03859255/file/tc-16-3861-2022.pdf
https://doi.org/10.5194/tc-16-3861-2022
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Summary:International audience Microwave remote sensing of the cryosphere demands a formulation of the scattering coefficient which can be applied over the entire range of relevant densities, from fresh snow to bubbly ice, at all frequencies and for any grain size and snow type. Most challenging are intermediate densities (450-550 kg m −3 ) and high frequencies (or coarse-grained snow) where current scattering formulations break down. In this brief communication we demonstrate that the strong contrast expansion method recently developed for heterogeneous, dielectric media can be applied to microwave scattering in snow, firn and ice to solve these problems.

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