Журнал

About Editorial Board Information for authors and reviewers Publication ethics Contacts User Account: send / review a manuscript
Archive
Volume 21, 2024
Number 1 Number 2 Number 3 Number 4 Number 5
Volume 20, 2023
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 19, 2022
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 18, 2021
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 17, 2020
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6 Number 7
Volume 16, 2019
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 15, 2018
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6 Number 7
Volume 14, 2017
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6 Number 7
Volume 13, 2016
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 12, 2015
Number 1 Number 2 Number 3 Number 4 Number 5 Number 6
Volume 11, 2014
Number 1 Number 2 Number 3 Number 4
Volume 10, 2013
Number 1 Number 2 Number 3 Number 4
Volume 9, 2012
Number 1 Number 2 Number 3 Number 4 Number 5
Volume 8, 2011
Number 1 Number 2 Number 3 Number 4
Volume 7, 2010
Number 1 Number 2 Number 3 Number 4
Issue 6, 2009
Volume 1 Volume 2
Issue 5, 2008
Volume 1 Volume 2
Issue 4, 2007
Volume 1 Volume 2
Issue 3, 2006
Volume 1 Volume 2
Issue 2, 2005
Volume 1 Volume 2
Issue 1, 2004
Volume 1
Search
Find:
русский
ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2018, Vol. 15, No. 5, pp. 120-129

Variation of microwave losses in pine branches at negative temperatures

G.S. Bordonskiy 1 , A.A. Gurulev 1 , A.O. Orlov 1 , S.V. Tsyrenzhapov 1 
1 Institute of Natural Resources, Ecology and Cryology SB RAS, Chita, Russia
Accepted: 04.09.2018
DOI: 10.21046/2070-7401-2018-15-5-120-129
The paper presents experimental data on microwave radiation transmission at frequencies of 5.2 GHz and 34 GHz through needles and coniferous branches of Pinus sylvestris at negative temperatures. Measurements were carried out in natural conditions for planting 40-year-old pine in winter in a sharply continental climate, and also in a laboratory experiment. In the investigated objects, the absorption of radiation was measured when changes in their temperature from 0°C to –50°C. In natural conditions, a hysteresis of electromagnetic losses in coniferous branches was detected, at which losses in the area of temperature growth were higher than in the region of their cooling. Such a behavior of the losses turns out to be anomalous in comparison with other moistened finely dispersed media at cycles of its cooling-heating, for example, clay. With an average attenuation value of 3 dB, the power transmission variations in the branches reached 1.0 dB. In laboratory studies performed separately for needles and wood branches, it was found that the anomalies of the loss hysteresis correspond to the wood of the branches, and not the needles. It is assumed that this feature is associated with the formation in the wood of ferroelectric ice 0, at its boundaries with other media the layers with high conductivity appear. These layers can lead to an increase in the loss factor. Moreover, the effect is most pronounced for cellular structures with threadlike liquid inclusions. This effect needs to be considered for remote sensing of forests in winter, it can be used for determining the thermal history of coniferous trees.
Keywords: supercooled water, microwave range, dielectric properties, nanoporous media, second critical point of water, ferroelectric ice 0
Full text

References:

  1. Bordonskii G. S., Orlov A. O., Poiski segnetoelektricheskikh l’dov v poristykh sredakh v zemnykh usloviyakh (The Search of Ferroelectric Ice in Porous Media in Earthly Conditions), Kriosfera Zemli, 2017, Vol. XXI, No. 6, pp. 45–54.
  2. Bordonskii G. S., Orlov A. O., Priznaki vozniknoveniya l’da “0” v uvlazhnennykh nanoporistykh sredakh pri elektromagnitnykh izmereniyakh (Signatures of the Appearance of Ice 0 in Wetted Nanoporous Media at Electromagnetic Measurements), Pis’ma v Zhurnal eksperimental’noi i teoreticheskoi fiziki, 2017, Vol. 105, No. 8, pp. 483–488.
  3. Bordonskii G. S., Orlov A. O., Khapin Yu. B., Koeffitsient zatukhaniya i dielektricheskaya pronitsaemost’ pereokhlazhdennoi ob”emnoi vody v intervale temperatur 0…–90°C na chastotakh 11…140 GGts (Attenuation Coefficient and Dielectric Permittivity of Supercooled Volume Water in the Temperature Range 0…–90°C at Frequencies 11…140 GHz), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017, Vol. 14, No. 3, pp. 255–270.
  4. Voda i vodnye rastvory pri temperaturakh nizhe 0°C (Water and Aqueous Solutions at Temperatures Below 0°C), Kiev: Naukova dumka, 1985, 387 p.
  5. Kalinkevich A. A., Krylova M. S., Armand N. A., Kakovkina A. Yu., Slyusarev V. I., Manakov V. Yu., Plyushchev V. A., Lightart L. P., Issledovanie vzaimosvyazi otrazhatel’nykh svoistv sosnovykh lesov i vodnogo rezhima elementov derev’ev (Investigation of the Relationship Between the Reflective Properties of Pine Forests and the Water Regime of Tree Elements), Rossiiskaya nauchnaya konferentsiya “Zondirovanie zemnykh pokrovov radarami s sintezirovannoi aperturoi” (Russian Scientific Conf. “Sounding of Earth’s Cover by Synthetic Aperture Radars”), Ulan-Ude, 06–10 Sept. 2010, Moscow: IRE im. V. A. Kotel’nikova RAN, 2010, pp. 1–14.
  6. Kolosovskaya E. A. Loskutov S. R., Chudinov B. S., Fizicheskie osnovy vzaimodeistviya drevesiny s vodoi (Physical basis of interaction of wood with water), Novosibirsk: Nauka. Sibirskoe otdelenie, 1986, 216 p.
  7. Kochetkova T. D., Suslyaev V. I., Volchkov S. I., Dielektricheskaya pronitsaemost’ khvoinykh porod drevesiny v diapazone chastot 3–12 GGts (The Dielectric Constant of Coniferous Wood in the Frequency Range 3–12 GHz), Vestnik Sibirskogo gosudarstvennogo aerokosmicheskogo universiteta im. akademika M. F. Reshetneva, 2013, No. 5 (51), pp. 101–104.
  8. Pravdin L. F., Sosna obyknovennaya. Izmenchivost’, vnutrividovaya sistematika i selektsiya (Pine ordinary. Variability, intraspecies taxonomy and selection), Moscow: Nauka, 1964, 192 p.
  9. Gurulev A. A., Zheleznyak I. I., Tsyrenzhapov S. V., Microwave absorption ambiguity of pine needles at negative temperatures, Proc. SPIE: 23rd Intern. Symp. Atmospheric and Ocean Optics: Atmospheric Physics; Irkutsk; Russian Federation, 2017, Vol. 10466, pp. 104660I–1/4.
  10. Korobeynikov S. M., Drozhzhin A. P., Furin G. G., Charalambakos V. P., Agoris D. P., Surface conductivity in liquid-solid interface due to image force, Proc. 2002 IEEE 14th Intern. Conf. Dielectric Liquids, 2002, pp. 270–273.
  11. Korobeynikov S. M., Melekhov A. V., Soloveitchik Yu. G., Royak M. E., Agoris D. P., Pyrgioti E., Surface conductivity at the interface between ceramics and transformer oil, J. Physics D: Applied Physics, 2005, Vol. 38, No. 6, pp. 915–921.
  12. Limmer D. T., Chandler D., Phase diagram of supercooled water confined to hydrophilic nanopores, J. Chemical Physics, 2012, Vol. 137, pp. 044509–1/11.
  13. Mätzler C., Wegmuller U., Dielectric properties of freshwater ice at microwave frequencies, J. Physics D: Applied Physics, 1987, Vol. 20, No. 12, pp. 1623–1630.
  14. Quigley D., Alfè D., Slater B., Communication: On the stability of ice 0, ice i, and Ih, J. Chemical Physics, 2014, Vol. 141, No. 16, pp. 161102–1/5.
  15. Russo J., Romano F., Tanaka H., New metastable form of ice and its role in the homogeneous crystallization of water, Nature Materials, 2014, Vol. 13, No. 7, pp. 733–739.
  16. Schreiber A., Kotelsen I., Findenegg G. H., Melting and freezing of water in ordered mesoporous silica materials, Physical Chemistry Chemical Physics, 2001, Vol. 3, pp. 1185–1195.
  17. Sharkov E. A., Passive Microwave Remote Sensing of the Earth: Physical Foundations, Berlin, New York, London, Paris, Tokyo: Springer/PRAXIS, 2003, 613 p.
  18. Slater B., Quigley D., Crystal nucleation: Zeroing in on ice, Nature Materials, 2014, Vol. 13, No. 7, pp. 670–671.