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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Kerr Y. H., Kosolapova L. G., Savin I. V., Muzalevskiy K. V.
Заглавие : A temperature-dependent dielectric model for thawed and frozen organic soil at 1.4 GHz
Коллективы : Russian Science Foundation [14-17-00656]
Место публикации : IEEE J. Sel. Top. Appl. Earth Observ. Remote Sens.: IEEE-Institute Electrical and Electronics Engineers, 2015. - Vol. 8, Is. 9. - P.4470-4477. - ISSN 1939-1404, DOI 10.1109/JSTARS.2015.2442295. - ISSN 2151-1535
Примечания : Cited References:19. - This work was supported in part by a grant from the Russian Science Foundation under Project 14-17-00656
Предметные рубрики: moisture retrieval algorithm
active layer
validation
Ключевые слова (''Своб.индексиров.''): dielectric constant--dielectric losses--dielectric measurement--l-band--modeling--soil moisture--soil properties
Аннотация: A single-frequency dielectric model for thawed and frozen Arctic organic-rich (80%-90% organic matter) soil was developed. The model is based on soil dielectric data that were measured over the ranges of volumetric moisture from 0.007 to 0.573 cm3/cm3, dry soil density from 0.564 to 0.666 g/cm3, and temperature from 25°C to -30°C (cooling run), at the frequency of 1.4 GHz. The refractive mixing model was applied to fit the measurements of the soil's complex refractive index (CRI) as a function of soil moisture, with the values of temperature being fixed. Using the results of this fitting, the parameters of the refractive mixing model were derived as a function of temperature. These parameters involve the CRIs of soil solids as well as bound, transient, and free soil water components. The error of the dielectric model was evaluated by correlating the predicted complex relative permittivity (CRP) values of the soil samples with the measured ones. The coefficient of determination (R2) and the root-mean-square error (RMSE) were estimated to be R2 = 0.999, RMSE = 0.27 and R2 = 0.993, RMSE = 0.18 for the real and imaginary parts of the CRP, respectively. These values are in the order of the dielectric measurement error itself. The proposed dielectric model can be applied in active and passive remote-sensing techniques used in the areas with organicrich soil covers, mainly for the SMOS, SMAP, and Aquarius missions.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Savin I. V., Mironov V. L., Muzalevskiy K. V., Fomin S. V., Karavaiskiy A. Yu., Ruzicka Z., Lukin Y. I.
Заглавие : Dielectric database of organic Arctic soils (DDOAS)
Место публикации : Earth Syst. Sci. Data. - 2020. - Vol. 12, Is. 4. - P.3481-3487. - ISSN 1866-3508 (ISSN), DOI 10.5194/essd-12-3481-2020. - ISSN 1866-3516 (eISSN)
Примечания : Cited References: 31
Аннотация: This article presents a Dielectric database of organic Arctic soils (DDOAS). The DDOAS was created based on dielectric measurements of seven samples of organic-rich soils collected in various parts of the Arctic tundra: Yamal and Taimyr Peninsula, Samoilovsky Island (the Russian Federation), and Northern Slope of Alaska (U.S.). The organic matter content (by weight) of the soil samples presented varied from 35 % to 90 %. The refractive index (RI) and normalized attenuation coefficient (NAC) were measured under laboratory conditions by the coaxial waveguide method in the frequency range from ~ 10 MHz to ~ 16 GHz, while the moisture content changed from air-dry to field capacity and the temperature from −40 °C to +25 °C. The total number of measured values of the RI and NAC contained in the database is more than 1.5 million values. The created database can serve not only as a source of experimental data for the development of new soil dielectric models for the Arctic tundra but also as a source of training data for artificial intelligence satellite algorithms of soil moisture retrievals based on neural networks. DDOAS is presented as Excel files. The files of DDOAS are available on http://doi.org/10.5281/zenodo.3819912 (Savin and Mironov, 2020).
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Kosolapova L. G., Fomin S. V., Savin I. V., Muzalevskiy K. V.
Заглавие : Dielectric model for thawed and frozen organic soils at 1.4 GHz
Коллективы : IEEE International Geoscience and Remote Sensing Symposium, Международный симпозиум по наукам о Земле и дистанционному зондированию
Место публикации : IEEE International Geoscience and Remote Sensing Symposium (IGRASS): Proceedings. - 2018. - P.7180-7183. - ISSN 978-1-5386-7150-4
Примечания : Cited References: 6. - The study was supported by a grant from the Russian Foundation for Basic Research (project № 16-05-00572), and project № 0356-2018-0060
Аннотация: Dielectric measurements of organic soils for five samples with different contents of organic matter are carried out in the temperature range from -30 °C to 25 °C in a wide frequency range from 0.45 to 16 GHz. On their basis, a simple single-frequency dielectric model of thawed and frozen organic soils has been created to calculate the complex relative permittivity of thawed and frozen organic soils, depending on the moisture, temperature and organic matter content at 1.4 GHz1.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Mironov V. L., Kosolapova L. G., Fomin S. V., Savin I. V., Muzalevskiy K. V.
Заглавие : Dielectric model for thawed and frozen organic soils at 1.4 GHz
Коллективы : IEEE International Geoscience and Remote Sensing Symposium
Место публикации : International Geoscience and Remote Sensing Symposium (IGARSS): IEEE, 2018. - Vol. 2018-July: 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 (22 July 2018 through 27 July 2018, ) Conference code: 141934. - Ст.8518443. - P.7180-7183. - , DOI 10.1109/IGARSS.2018.8518443
Примечания : Cited References: 6. - The study was supported by a grant from the Russian Foundation for Basic Research (project № 16-05-00572), and project №0356-2018-0060.
Ключевые слова (''Своб.индексиров.''): 1.4 ghz--dielectric model--moisture--organic soils--remote sensing--temperature--thawed and frozen soils
Аннотация: Dielectric measurements of organic soils for five samples with different contents of organic matter are carried out in the temperature range from -30 °C to 25 °C in a wide frequency range from 0.45 to 16 GHz. On their basis, a simple single-frequency dielectric model of thawed and frozen organic soils has been created to calculate the complex relative permittivity of thawed and frozen organic soils, depending on the moisture, temperature and organic matter content at 1.4 GHz.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Mironov V. L., Bobrov P.P., Yashchenko A.S., Savin I.V., Repin A.V.
Заглавие : Effect of Antireflective Surface at the Radiobrightness Observations for the Topsoil Covered with Coniferous Litter
Коллективы : Progress In Electromagnetics Research Symposium
Место публикации : Progress in Electromagnetics Research Symposium Proceedings (PIERS 2009). - 2009. - P.966-970
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Epov M. I., Savin I. V., Mironov V. L.
Заглавие : A temperature-dependent dielectric model for water- and oil-containing rocks in the frequency range from 0.5 to 15 GHz
Место публикации : Russ. Geol. Geophys.: Elsevier Science BV, 2012. - Vol. 53, Is. 7. - P.698-703. - ISSN 1068-7971, DOI 10.1016/j.rgg.2012.05.008
Примечания : Cited References: 17
Предметные рубрики: MOIST SOILS
POLARIZATION PROCESSES
PERMITTIVITY METHOD
Ключевые слова (''Своб.индексиров.''): dielectric permittivity--effective conductivity--water-containing rocks--temperature-dependent dielectric model
Аннотация: Dielectric spectra of water-containing rocks forming a mineral framework of the oil-saturated bed (clay minerals amount to˂16%) were measured in the frequency range from 500 MHz to 15 GHz and in the temperature range from 20 to 80 °C. A physical model for computing spectra of the dielectric permittivity and effective conductivity of the studied rocks has been elaborated. Its input parameters are water (salt solution) content and temperature. The errors of the computed spectra relative to the measured ones are estimated.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Kosolapova L. G., Fomin S. V., Savin I. V.
Заглавие : Experimental analysis and empirical model of the complex permittivity of five organic soils at 1.4 GHz in the temperature range from −30 °C to 25 °C
Место публикации : IEEE Trans. Geosci. Remote Sensing. - 2019. - Vol. 51, Is. 6. - P.3778 - 3787. - ISSN 0196-2892, DOI 10.1109/TGRS.2018.2887117
Примечания : Cited References: 26. - This work was supported by the Russian Foundation for Basic Research under Grant 16-05-00572.
Аннотация: The dielectric measurements were made for five organic soils taken from the tundra territories of Alaska, Yamal, and Taimyr, with the content of organic matter varying from 35% to 80%. The measurements were carried out in the temperature range from −30 °C to 25 °C, frequencies from 0.45 to 16 GHz and soil moisture from close to zero to the field moisture capacity. The refractive mixing model was applied to fit the measurements of the soil’s complex refractive index (CRI) as a function of soil moisture, with the values of temperature being fixed. As a result, a respective dielectric model was developed. The amounts of bound and transient water in the thawed and frozen soils were introduced as parameters of the developed model and derived as a function of temperature and content of soil organic matter. The other parameters which concern the CRIs of soil solids as well as bound, transient, and liquid soil water or ice components were derived as a function of temperature. The errors of the proposed model estimated in terms of the values of normalized root-mean-sqaure error for the real and imaginary parts of the soil complex relative permittivity appeared to be 6%–7% and 23%, respectively. The proposed dielectric model can be applied in active and passive remote sensing, in particular, for the SMOS, SMAP, and Aquarius missions after testing in ground-based experiments.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Muzalevskiy K. V., Ruzicka Z., Zahvatov M. G., Savin I. V., Karavaysky A. Yu.
Заглавие : First use of the Meteor-M No. 2/MTVZA-GYa radiometer for remote sensing of soil moisture and temperature in the Arctic region
Коллективы : Progress in Electromagnetics Research Symposium - Spring 2017 , Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [16-45-242162]; Program of Presidium of the Russian Academy of Sciences; [SB RAS II.12.1]
Место публикации : Progress in Electromagnetics Research Symposium - Spring: IEEE, 2017. - С. 1426-1429. - ISBN 978-1-5090-6269-0, DOI 10.1109/PIERS.2017.8261971
Примечания : Cited References: 7. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project 16-45-242162, the Program of Presidium of the Russian Academy of Sciences "Arctic" and Program of SB RAS II.12.1.
Аннотация: In this paper, the results of radiothermal remote sensing of moisture and temperature of thawed soil on a test site in the Taymyr Peninsula using full-polarimetric observations of brightness temperature at the frequency of 10.7 GHz are presented. The brightness temperature data were obtained from MTVZA-GYa radiometer on a board of Meteor-M No. 2 satellite with footprint area near the Norilsk city and Khatanga, the Russia Federation. The MTVZA-GYa data covered the period from January 1 to December 31, 2015. The method to retrieve the soil moisture and temperature was based on solving an inverse problem by minimizing the norm of the residuals between the observed and predicted values of the brightness temperature. The calculation of the brightness temperature was performed using a semi-empirical model of radio-thermal emission the parameters of which have been pre-calibrated at the test sites in the area of Norilsk and Khatanga, as well as using a soil dielectric model with high in organic matter. The dielectric model was especially designed based on laboratory measurements of the complex permittivity of the organic-rich soil samples, which were collected at the test site near Norilsk city. As a result, the values of the root-mean-square error between the retrieved and measured soil temperatures and soil moisture were not exceed 6.5o 0.06cm3/cm3, respectively for both test sites. These results indicate the perspectives of using the full-polarimetric observations of MTVZA-GYa radiometer on a board of Meteor-M No. 2 satellite in the X-band for the purpose of measuring the soil temperature and soil moisture in the Arctic region.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Mironov V. L., Savin I. V., Muzalevskiy K. V.
Заглавие : A temperature-dependent multi-relaxation spectroscopic dielectric model for thawed and frozen organic soil at 0.05-15 Ghz
Коллективы : Geoscience and Remote Sensing Symposium
Место публикации : Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International. - 2015. - P.2031-2034. - DOI 10.1109/IGARSS.2015.7326198
Аннотация: The dielectric model for an arctic organic-rich soil collected on the Yamal peninsula (50% of organic matter) both thawed and frozen has been developed. The model is based on the soil dielectric measurements carried out in the ranges of gravimetric moisture 0.03 to 0.55 g/g, dry soil density 0.72 to 0.87 g/cm3, and temperature 25 to −30°C (cooling run), in the frequency range 0.05–15 GHz. To fit the results of measurements of the soil complex dielectric constant as a function of soil moisture and wave frequency, the refractive mixing dielectric model in conjunction with the Debye multi-relaxation equations were applied. As a result, the spectroscopic parameters of dielectric relaxations and electrical specific conductivities for the bound, transient bound, and unbound soil water components were derived, being further complimented with the thermodynamics parameters. Having these parameters, the complex dielectric constant of soil can be predicted as a function of 1) density of dry soil, 2) gravimetric moisture, 3) wave frequency, and 4) temperature1.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Savin I. V.
Заглавие : A temperature-dependent multi-relaxation spectroscopic dielectric model for thawed and frozen organic soil at 0.05–15 GHz
Место публикации : Phys. Chem. Earth: PERGAMON-ELSEVIER SCIENCE LTD, 2015. - Vol. 83–84: Emerging science and applications with microwave remote sensing data. - P.57-64. - ISSN 1474-7065, DOI 10.1016/j.pce.2015.02.011
Примечания : Cited References: 14. - The study was supported by the Russian Science Foundation (project 14-17-00656).
Предметные рубрики: ARCTIC SOIL
BOREAL
Ключевые слова (''Своб.индексиров.''): organic soil--moisture--temperature--dielectric model--thawed and frozen soil--smos
Аннотация: A dielectric model for thawed and frozen Arctic organic-rich soil (50% organic matter) has been developed. The model is based on soil dielectric measurements that were collected over ranges of gravimetric moisture from 0.03 to 0.55 g/g, dry soil density from 0.72 to 0.87 g/cm3, and temperature from 25 to −30 °C (cooling run) in the frequency range of 0.05–15 GHz. The refractive mixing dielectric model was applied with the Debye multi-relaxation equations to fit the measurements of the soil’s complex dielectric constant as a function of soil moisture and wave frequency. The spectroscopic parameters of the dielectric relaxations for the bound, transient bound, and unbound soil water components were derived and were complimented by the thermodynamic parameters to obtain a complete set of parameters for the proposed temperature-dependent multi-relaxation spectroscopic dielectric model for moist soils. To calculate the complex dielectric constant of the soil, the following input variables must be assigned: (1) density of dry soil, (2) gravimetric moisture, (3) wave frequency, and (4) temperature. The error of the dielectric model was evaluated and yielded RMSEε′ values of 0.348 and 0.188 for the soil dielectric constant and the loss factor, respectively. These values are on the order of the dielectric measurement error itself. The proposed dielectric model can be applied in active and passive microwave remote sensing techniques to develop algorithms for retrieving the soil moisture and the freeze/thaw state of organic-rich topsoil in the Arctic regions.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Savin I. V., Karavaysky A. Yu.
Заглавие : Dielectric model in the frequency range 0.05 to 15 GHz at temperatures −30°C to 25°C for the samples of organic soils and litter collected in Alaska, Yamal, and Siberian Taiga
Коллективы : IEEE International Geoscience and Remote Sensing Symposium
Место публикации : IEEE J. Sel. Top. Appl. Earth Observ. Remote Sens.: Proc.: IEEE-Institute Electrical and Electronics Engineers, 2016. - P.2684-2687. - ISSN 978-1-5090-3332-4, DOI 10.1109/IGARSS.2016.7729693. - ISSN 2153-7003
Ключевые слова (''Своб.индексиров.''): remote sensing--organic soil--moisture--temperature--dielectric model--thawed and frozen soil
Аннотация: We prove the possibility of creating a temperature dependent multi-relaxation spectroscopic dielectric model (TD MRSDM) for a set of organic soil containing 50% (Yamal tundra), 80% (Alaskan tundra) and 90% (boreal pine litter) of organic solids. The created model is based on the previously developed TD MRSDM for the Yamal tundra soil complemented with specific temperature dependences for the hydrological parameters pertaining for each specific soil. At that, the same values for spectroscopic and thermodynamic parameters of the TD MRSDM can be applied, as those were previously obtained in the case of the Yamal tundra soil. The statistical evaluation of the errors for the predicted values of complex dielectric permittivity in the cases of both the thawed and frozen soils with respect to the measured values were carried out. The standard deviations calculated for the Alaskan soil and the Siberian boreal litter appeared to be on the same order as the ones pertaining to the Yamal tundra soil.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Kosolapova L. G., Savin I. V.
Заглавие : Dielectric model of thawed and frozen organic soil at the AMSR radiometer frequency
Место публикации : Izv. Atmos. Ocean Phys. - 2021. - Vol. 57, Is. 12. - P.1783-1788. - ISSN 00014338 (ISSN), DOI 10.1134/S0001433821120318
Примечания : Cited References: 10
Аннотация: In this paper, we develop a simple single-frequency dielectric model of thawed and frozen arctic soil for a frequency of 6.9 GHz. The model is developed based on laboratory dielectric measurements of soil samples containing 80–90% organic matter in the range of gravimetric moisture from 0.01 to 0.942 g/g (volumetric moisture ranging from 0.007 to 0.573 cm3/cm3), and temperatures from +25 to –30°C in the freeze mode. A refractive mixture model is used as a regression equation for the measured values of the complex soil refractive index depending on moisture. The complex refractive indices of various soil components (mineral-organic , bound, transitional, and free water (ice for frozen soil)), as well as values for the maximum allowable content of bound and transitional water in the soil at all measured temperatures, are determined using the regression analysis. The empirical dependences of the complex refractive index of soil components and the maximal allowable contents of various types of water in soil on temperature are obtained. As a result, we developed a model that allows calculating the permittivity of thawed and frozen organic soil as a function of moisture and temperature at 6.9 GHz. The root-mean-square error was 0.20 for the real part of the complex dielectric permittivity of the soil and 0.22 for the imaginary part at the determination coefficient values of 0.999 and 0.995, respectively.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Muzalevskiy K. V., Savin I. V.
Заглавие : Retrieving temperature gradient in frozen active layer of arctic tundra soils from radiothermal observations in L-Band-Theoretical modeling
Коллективы : Siberian Branch of the Russian Academy of Sciences (SB RAS)
Место публикации : IEEE J. Sel. Top. Appl. Earth Observ. Remote Sens.: IEEE-Institute Electrical and Electronics Engineers, 2013. - Vol. 6, Is. 3. - Ст.6520003. - P.1781-1785. - ISSN 1939-1404, DOI 10.1109/JSTARS.2013.2262108
Примечания : Cited References: 20
Предметные рубрики: WATER
RADIOMETER
BOREAL
Ключевые слова (''Своб.индексиров.''): active layer--arctic tundra soil--freezing--microwave remote sensing--radiometry--soil moisture and ocean salinity (smos)--soil temperature--temperature profile--thawing
Аннотация: Possibility of remote sensing of both the surface temperature and the temperature gradient in the permafrost active layer from L-band brightness temperature observations is theoretically investigated at a SMOS frequency of 1.4 GHz. Bare soil emission is simulated based on the semi-empirical L-MEB model. The brightness temperature is simulated using the soil density, surface roughness, temperature, and moisture profiles measured in situ at the Biosphere Station Franklin Bluffs, Alaska, USA (69°39'N, 148°43'W) from September 2, 1999, to August 23, 2001. The soil permittivity is calculated using the temperature-dependent generalized refractive mixing dielectric model for the organic rich soil sample collected in North Slope, Alaska (68°38'N, 149°35'W). This model predicts the complex dielectric constant of moist soil both thawed and frozen at temperatures from-30°C to +25°C and moistures from 0 to 0.94 g/g. The brightness temperatures simulated for field-of-view angles from 0 to 60\circ are inverted into the temperature profiles, and their deviations from the temperature profiles measured in situ are estimated. The error in reconstructing temperature profiles is found to be no greater than 1.8 °C to depths of 0.15 m. © 2013 IEEE.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Savin I. V.
Заглавие : Spectroscopic Multirelaxation Dielectric Model of Thawed and Frozen Arctic Soils Considering the Dependence on Temperature and Organic Matter Content
Место публикации : Izv. Atmos. Ocean. Phys. - 2019. - Vol. 55, Is. 9. - P.986-995. - ISSN 0001-4338, DOI 10.1134/S0001433819090305. - ISSN 1555-628X(eISSN)
Примечания : Cited References: 16
Предметные рубрики: SMOS BRIGHTNESS TEMPERATURES
RELAXATION
BOREAL
Аннотация: A temperature spectroscopic dielectric model of moist soils developed on the basis of measurements of six samples of thawed and frozen Arctic soils with different contents of organic matter, from 30 to 90%, is presented. This model allows predicting complex permittivity values of moist soil that are in a good agreement with dielectric measurements. It is applicable in a frequency range from 0.05 to 15 GHz, a temperature range from ‒30° to +25°C, and a moisture range from 0.009 to 1.001 g/g. It can be recommended for use in remote sensing algorithms of moisture and temperature of soil using space radiometric and radar data.
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15.

Вид документа : Однотомное издание
Шифр издания :
Автор(ы) : Mironov V. L., Savin I. V.
Заглавие : Temperature-dependent spectroscopic dielectric model at 0.05–16 GHz for a thawed and frozen Alaskan organic soil
Место публикации : Satellite Soil Moisture Retrieval: Techniques and Applications: Elsevier, 2016. - Siction III: Microwave Soil Moisture Retrieval Techniques, Chapter 9. - P.169-186. - , DOI 10.1016/B978-0-12-803388-3.00009-7
Примечания : Cited References: P. 185-186
Аннотация: This book (пер. загл.: Спутниковое восстановление влажности почв. Техника и применение) provides a detailed reference that offers essential information on monitoring and understanding soil moisture retrieval techniques and their applications, and includes thought-provoking sections on techniques from microwave, optical and infrared satellite datasets, such as the universal triangle method, vegetation and indices based approaches.
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16.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Mironov V. L., Savin I. V., Lukin Y. I., Karavaiskii A. Yu.
Заглавие : Phase transition analysis in freezing moist soils carried out on the basis of phase transitions characteristic to the different types of soil water
Коллективы : IEEE International Geoscience and Remote Sensing Symposium (2012 ; July ; 22-27; Munich, Germany)
Место публикации : IEEE International Geoscience and Remote Sensing Symposium (IGRASS): Proceedings. - Munich, 2012. - P.4497-4500. - ISBN 978-1-4673-1159-5, DOI 10.1109/IGARSS.2012.6350472
Аннотация: The analysis of the mass exchange between the nonfreezing bound and nonfreezing transient water types, as well as that between the nonfreezing transient water and ice in frozen soils has been done. The comparison between results obtained with radiometric and calorimetric methods made it possible to to explain apparent heat capacity behavior during a freezing event using the observed phenomena of phase transition in bound, transient, and capillary soil water types.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Savin I. V., Muzalevskiy K. V., Mironov V. L.
Заглавие : A dielectric model of thawed and frozen Arctic organic soils at 435 MHz
Коллективы : SB RAS project [0287-2021-0034]
Место публикации : Remote Sens. Lett. - 2022. - Vol. 13, Is. 5. - P.452-459. - ISSN 2150-704X, DOI 10.1080/2150704X.2022.2041761. - ISSN 2150-7058(eISSN)
Примечания : Cited References: 15. - This work was supported by the SB RAS project No. 0287-2021-0034
Предметные рубрики: P-BAND RADAR
Аннотация: A refractive-mixing dielectric model for frozen and thawed organic-rich soils at a frequency of 435 MHz was developed in this letter. The model was developed based on the dielectric measurements of five soil samples in which organic matter content was variated from 35% to 80% (by weight). Dielectric measurements were conducted in the range of volumetric soil moisture from ~2% to 60%, and the range of temperature from −30°C to 25°C. Coefficient of determination (R2) and root mean square error (RMSE) between predicted by the model and measured values for real (ε ') and imaginary (ε '') part of complex relative permittivity are R2ε '= 0.989 (RMSEε '=0.602) and R2ε ''= 0.906 (RMSEε ''=0.404), respectively. The developed dielectric model can be used for creating remote sensing algorithms (soil moisture retrieval in the root zone, active layer thickness and ice content measuring in permafrost area, etc.) in P-band.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Savin I. V., Muzalevskiy K. V.
Заглавие : Dielectric Model for Thawed Organic Soils at Frequency of 435 MHz
Место публикации : IEEE Geosci. Remote Sens. Lett. - 2021. - Vol. 18. Is. 2. - P.218-221. - ISSN 1545-598X (ISSN), DOI 10.1109/LGRS.2020.2975027. - ISSN 1558-0571 (eISSN)
Примечания : Cited References: 16
Аннотация: To date, models describing the complex dielectric constant (CDC) of tundra soils with different contents of organic matter (more than 30%) in the P-band were poorly reported and not developed. In this letter, a refractive dielectric model for moist organic soils at a frequency of 435 MHz was developed. The model was developed on the basis of dielectric measurements of five samples of organic soils with different organic content from 35% to 80% and the soil moisture from air-dry to field capacity at a temperature of 20 °C. The developed model is a function of only two parameters, namely, the organic content by weight and volumetric soil moisture. The new model and future BIOMASS mission will be creating the bases for developing new soil moisture profile retrieving algorithms in the root zone.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Savin I. V., Mironov V. L.
Заглавие : Multi-relaxation temperature-dependent dielectric model of the Arctic soil at positive temperatures
Место публикации : Russ. Phys. J.: Springer, 2014. - Vol. 57, Is. 7. - P.907-914. - ISSN 1064-8887, DOI 10.1007/s11182-014-0323-6. - ISSN 1573-9228
Примечания : Cited References: 13
Предметные рубрики: MOIST SOILS
Ключевые слова (''Своб.индексиров.''): dielectric permittivity--humid soils--spectroscopic parameters--maxwell-wagner relaxation
Аннотация: Frequency spectra of the dielectric permittivity of the Arctic soil of Alaska are investigated with allowance for the dipole and ionic relaxation of molecules of the soil moisture at frequencies from 40 MHz to 16 GHz and temperatures from –5 to +25°С. A generalized temperature-dependent multi-relaxation refraction dielectric model of the humid Arctic soil is suggested.
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20.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Mironov V. L., Savin I. V.
Заглавие : Temperature Dependable Microwave Dielectric Model for a Pine Litter Thawed and Frozen
Коллективы : Progress In Electromagnetics Research Symposium Proceedings
Серия: PIERS 2011 Suzhou - Progress in Electromagnetics Research Symposium, Proceedings
Место публикации : Proc. PIER. - 2011. - С. 585-589
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