Fire-induced changes in the dielectric constant of lichens in plateau palsas of the Nadym-Pur interfluve
Creators
- 1. National Research Tomsk State University, 36 Lenin Ave., Tomsk, 634050, Russia
- 2. National Research Tomsk State University, 36 Lenin Ave., Tomsk, 634050, Russia; Pasvik State Nature Reserve, 43, Gvardeysky avenue, Nickel, Murmansk Region, 184421 Russia
Description
The paper analyzed the complex permittivity of lichens of the genus Cladonia sampled from areas disturbed by fire and from undisturbed plateau palsas in the Nadym-Pur interfluve, Western Siberia. The complex permittivity at microwave-frequency range was estimated by coaxial line measurement using an Agilent E8363B vector network analyzer. The real and imaginary parts of the permittivity of lichens in the disturbed areas were found to be significantly lower than ones of lichens from undisturbed areas. The linear dependence of the complex permittivity on water content is more pronounced in the lichen sampled from the disturbed areas. The obtained patterns can be used for radargram interpretation.
Notes
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Kochetkova et al_final.pdf
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