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5. Microwave Dielectric Behavior of Wet Soil. Part I: Empirical Models and Experimental Observations / M. T. Hallikainen et. al. // IEEE Trans. Geoscience and Remote Sensing. 1985. Vol. 23, 1. P. 25-34.
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References
1. Encyclopedia of snow, ice and glaciers. Springer,
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3. Derksen C. Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season. Remote Sens. Environment,
2012, vol. 117, pp. 236-248.
4. Matzler C. Microwave Permittivity of Dry Snow. IEEE Trans. on Geoscience and Remote Sensing, 1996, vol. 34, no. 2, pp. 573-581.
5. Hallikainen M. T. et. al. Microwave Dielectric Behavior of Wet Soil - Part I: Empirical Models and Experimental Observations. IEEE Trans. Geoscience and Remote Sensing, 1985, vol. 23, no 1, pp. 25-34.
6. Brekhovskikh L. M. Volny v sloistykh sredakh (Waves in Layered Media). Moscov, Nauka, 1973.
7. Dagurov P. N., Dmitriev A. V., Chimitdorzhiev T. N. Reflection of microwaves from soil with snow and ice cover. Proceedings of VIII Russian symposium Control of environment and climate. Tomsk, 2012. P. 34-35.
8. Dagurov P.N., Dmitriev A. V., Dymbrylov Zh. B., Chimitdorzhiev T. N. Influence of layer structure soil moisture on performance of interferometry synthetic aperture radar. Izvestia vuzov. Phizika. 2012, vol. 55, 8/2, pp. 266-267.
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METHOD OF MEASURE OF MICROWAVE RADIATION AT THE FOREST CANOPY USING GLONASS- AND GPS-SIGNALS
V. L. Mironov1, 2, M. I. Mihaylov2, A. V. Sorokin1, 2, K. V. Muzalevskiy1, 2, S. V. Fomin2
1Siberian State Aerospace University named after academician M. F. Reshetnev 31 Krasnoyarskiy Rabochiy prospect, Krasnoyarsk, 660014, Russia
2Kirensky Institute of physics, Sciences Center of Russian Academy of Sciences, Siberian Branch 50/38 Akademgorodok, Krasnoyarsk, 660036, Russia. E-mail: fractaloff@mail.ru
This paper describes a new method for studying the characteristics of the forest canopy using the signals of navigation satellites. Experimental data on measurements of L-band radio-signals lost range in several types of boreal forests of Siberia are presented and discussed.
Keywords: GNSS, remote sensing, forest canopy.
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1. M. Martin-Niera A passive reflectometery and in-terferometery system (PARIS); Application to ocean al-timetery // ESA J. 1993. Vol. 17. . 331-355.
2. A Physical Model for GPS Multipath Caused by Land Reflections: Toward Bare Soil Moisture Retrievals / V. Zavorotny et al. IEEE Journal of Selected Topics
in Applied Earth Observations and Remote Sensing. 2010. Vol. 3, Iss. 1. Part 2. P. 100-110.
3. Can we measure snow depth with GPS receivers? / K. Larson et al. // Geophysical Research Letters. 2009. Vol. 36, Iss. 17. GL039430.
4. Soil Moisture Retrieval Using GNSS-R Techniques: Experimental Results Over a Bare Soil Field / N. Rodriguez-Alvarez et al. IEEE Transactions on Geosciences and Remote Sensing. 2009. Vol. 47, 11. P. 3616-3624.
5. . ., . ., . . // . 2003. . 48, 11. . 1285-1311.
6. . . . . // . . 2010. 11. . 3-8.
References
1. M. Martin-Niera - ESA J., 1993, Vol. 17, pp. 331-355.
2. Zavorotny V. et al. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2010, vol. 3, no. 4, part 2, pp. 100-110.
3. Larson K. et al. Geophysical Research Letters, 2009, vol. 36, L17502, doi:10.1029/2009 GL039430.
4. Rodriguez-Alvarez N. et al. IEEE Transactions on Geosciences and Remote Sensing, 2009, vol. 47, no. 11, pp. 3616-3624.
5. Chukhlansev A. A., Ghutko A. M., Golovachev S. P. Radiotekhnika I Electronika. 2003, vol. 48, no. 11, pp. 1285-1311.
6. Dorziev B. Ch., Ochirov O. N. Izvestiya vuzov. Fizika. 2010, no. 11, pp. 3-8.
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WIDEBAND RADIO SOUNDING OF VEGETATION COVERS OF THE EARTH SURFACE
A. Yu. Vetluzhsky, V. P. Kalashnikov
Institute of Physical Materials Science of the Russian Academy of Sciences, Siberian Branch 6 Sakhyanov st., Ulan-Ude, 670047, Russia. E-mail: vay@ipms.bscnet.ru
The article describes the results of experiments on radio sounding of forest vegetation with wideband pulse signals. The authors give notice to significant differences in changes of spectra of signals at interaction with different types of forests.
Keywords: wideband radio sounding, pulse signals, spectra, forest vegetation.

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