Dielectric properties of ice containing acid and salt impurity at microwave and low frequencies
Moore, John C.; Fujita, Shuji. 1993 Dielectric properties of ice containing acid and salt impurity at microwave and low frequencies. Journal of Geophysical Research, 98 (B6). 9769-9780. 10.1029/93JB00710
Full text not available from this repository. (Request a copy)Abstract/Summary
We compare the microwave and low-frequency (LF) dielectric conductivity of natural and artificial ice as a function of impurity concentration and temperature. We find a linear dependence of conductivity on acid concentration that is independent of the type of acid. There appears to be no evidence of significant dielectric dispersions between LF and 10 GHz in acid-doped ice. The results are well fitted by a model in which concentrated liquid acid at three-grain boundaries forms a network, earlier proposed as an explanation for the DC conductivity of polar ice. In contrast, evidence from ice with sea salt impurity shows large discrepancies between the microwave response of low-salinity sea ice, and both the LF and microwave responses of ice with salinities typical of meteoric ice. These discrepancies may be attributed to sea salt chloride being largely incorporated within the ice lattice in meteoric-type ice, while in higher-salinity ice most of the sea salt is contained in platelike inclusions of liquid brine.
Item Type: | Publication - Article |
---|---|
Digital Object Identifier (DOI): | 10.1029/93JB00710 |
ISSN: | 0148-0227 |
Date made live: | 27 Sep 2017 08:19 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/517917 |
Actions (login required)
View Item |
Document Downloads
Downloads for past 30 days
Downloads per month over past year