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Microwave dielectric properties of snow: Modeling and measurements
Author(s) -
Surdyk S.,
Fujita S.
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/95gl00568
Subject(s) - snow , dissipation factor , materials science , dielectric , microwave , crystal (programming language) , tangent , ice crystals , range (aeronautics) , dielectric loss , environmental science , resonator , optics , atmospheric sciences , computational physics , meteorology , physics , composite material , optoelectronics , mathematics , geometry , quantum mechanics , computer science , programming language
We investigated the dielectric loss tangent of dry snow in the 30–40 GHz range as a function of crystal size and frequency. Measurements were carried out with an open resonator method of semiconfocal type. To validate a strong fluctuation model [ Stogryn , 1986], measurements and simulated results are compared. As predicted by the model, the loss tangent increases with the frequency and the crystal size. The comparison is satisfactory for snow crystal sizes below 1 mm. Above 1 mm, more measurements are needed.