Retrieving soil moisture profiles based on multifrequency polarimetric radar backscattering observations. Theoretical case study

Muzalevskiy, Konstantin

doi:10.1080/01431161.2020.1809743

International Journal of Remote Sensing

2020

DOI: 10.1080/01431161.2020.1809743

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Retrieving soil moisture profiles based on multifrequency polarimetric radar backscattering observations. Theoretical case study

Konstantin Muzalevskiy

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2024

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Cited by 3 publications

(1 citation statement)

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“…В рамках проведенных исследований, оценки глубины зондирования влажности почвы близки к значениям, полученным в теоретических и экспериментальных работах[4,5,7,10,11] для минеральных почв (частота радиометрического зондирования 750 МГц), и существенно занижены относительно значений, приведенных в[14,16] для тундровых почв (частота радарного зондирования 435 МГц). Данное несоответствие между результатами различных авторов нуждается в дополнительном исследовании.…”

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Особенности Радиометрического Зондирования Влажности Тундровых Почв В P-Диапазоне Частот

Muzalevskiy

2023

JRE

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In this paper, in the P-band (409 MHz), the features of tundra soils microwave emission are theoretically studied during the thawing of active layer. The soils in vertical section of active layer were characterized by the profiles of volumetric moisture, weight content of organic matter, and time series of physical temperature. The brightness temperature of the active layer of tundra soils was calculated based on the phenomenological model of microwave emission for a stratified non-isothermal half-space. A dielectric model that allows to calculate the real and imaginary parts of the relative complex dielectric constant of tundra soils with a high organic matter content of 35%-80%, in the temperature range from -30C to +25C was used to modeling the brightness temperature. As a result, It was shown that as the active layer of tundra soils thaws, the interference of emissivity is observed, the amplitude of which is determined by the kind of vertical profile of the organic matter content. The interference of emissivity can be neglected when the active layer thaws more than 18.5 cm. If the volumetric moisture of the thawing part of the active layer is less than (or close to) the maximum content of bound water, then interference of emissivity is not observed. Modeling showed that the average sensing depth of tundra soil moisture does not exceed 4.5 cm.

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Особенности Радиометрического Зондирования Влажности Тундровых Почв В P-Диапазоне Частот

Muzalevskiy

2023

JRE

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Miscellaneous methods for determination of unfrozen water content in frozen soils

Feng,

Chen,

Jones

et al. 2024

Journal of Hydrology

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On the use of dual-polarized multi-angular observations of P-band brightness temperature for soil moisture profile retrieval in thawed mineral soil

Muzalevskiy,

Walker,

Brakhasi

et al. 2024

International Journal of Remote Sensing

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Retrieving soil moisture profiles based on multifrequency polarimetric radar backscattering observations. Theoretical case study

Cited by 3 publications

References 30 publications

Особенности Радиометрического Зондирования Влажности Тундровых Почв В P-Диапазоне Частот

Особенности Радиометрического Зондирования Влажности Тундровых Почв В P-Диапазоне Частот

Miscellaneous methods for determination of unfrozen water content in frozen soils

On the use of dual-polarized multi-angular observations of P-band brightness temperature for soil moisture profile retrieval in thawed mineral soil

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