Articles | Volume 7, issue 3
https://doi.org/10.5194/gi-7-195-2018
https://doi.org/10.5194/gi-7-195-2018
Research article
 | 
11 Jul 2018
Research article |  | 11 Jul 2018

Dielectric characterization of vegetation at L band using an open-ended coaxial probe

Alex Mavrovic, Alexandre Roy, Alain Royer, Bilal Filali, François Boone, Christoforos Pappas, and Oliver Sonnentag

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Cited articles

Artemov, V. and Volkov, A.: Water and Ice Dielectric Spectra Scaling at 0 C, Ferroelectrics, 466, 158–165, 2014. 
Bergeron, O., Margolis, H., Black, A., Coursolle, C., Bunn, A., Barr, A., and Wofsy, S.: Comparison of carbon dioxide fluxes over three boreal black spruce forests in Canada, Glob. Change. Biol., 13, 89–107, 2007. 
Bircher, S., Demontoux, F., Razafindratsima, S., Zakharova, E., Drusch, M., Wigneron, J.-P., and Kerr, Y.: L-Band Relative Permittivity of Organic Soil Surface Layers – A New Dataset of Resonant Cavity Measurements and Model Evaluation, Remote Sens.-Basel, 8, 1024, 2016. 
Blackham, D. and Pollard, R.: An improved technique for permittivity measurements using a coaxial probe, IEEE T. Instrum. Meas., 46, 1093–1099, 1997. 
Brandt, J. P., Flannigan, M. D., Maynard, D. G., Thompson, I. D., and Volnet, W. J. A.: An introduction to Canada's boreal zone: ecosystem processes, health, sustainability, and environmental issues, Environ. Rev., 21, 207–226, 2013. 
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Short summary
To improve microwave satellite and airborne observation products in forest environments, a precise and reliable estimation of the permittivity of trees is required. We developed a probe suitable to measure the permittivity of tree trunks at L band in the field. The system is easily transportable in the field, low energy consuming, operational at low temperatures and weatherproof. The permittivity of seven tree species in both frozen and thawed states was measured, showing important contrast.