The Application of Dielectric Retrieval Algorithms for Mapping Soil Salinity in a Tropical Coastal Environment Using Airborne Polarimetric SAR

Bell, Darren; Menges, Carl H.; Ahmad, Waqar; Zyl, J. van

doi:10.1016/s0034-4257(00)00180-2

Cited by 49 publications

(22 citation statements)

References 16 publications

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“…The dielectric constant is a complex number consisting of a real part, which is related to soil moisture, and an imaginary part, which is related to salinity. Using inverse modelling, the imaginary part can be calculated and calibrated with soil salinity (Bell et al, 2001;Taylor et al, 1996;Yun et al, 2003). Soil salinity classes have been successfully derived on a local scale (b500 km 2 ) with the C-, P-, and L-bands of airborne and spaceborne radar systems; best results are obtained using L-band data because long wavelengths penetrate soil and vegetation to a greater extent than higher frequencies (Bell et al, 2001;Lasne et al, 2008;Taylor et al, 1996).…”

Section: Soil Salinitymentioning

confidence: 99%

The use of remote sensing in soil and terrain mapping — A review

et al. 2011

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Section: Soil Salinitymentioning

confidence: 99%

The use of remote sensing in soil and terrain mapping — A review

et al. 2011

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“…Due to limited amount of sampling sites (only 68 sites were sampled) and available funds and labor, the sampling might not be a good representation for large areas. Remote sensing technology, on the other hand, provides a viable alternative to traditional field work due to its large area coverage, multiple spectra information and nearly constant observation (Bell et al, 2001;Bierwirth and Brodie, 2008;Douaoui et al, 2006;Farifteh et al, 2007;Metternicht and Zinck, 2003;Mulder et al, 2011;Taghizadeh-Mehrjardi et al, 2014). This is especially true since higher resolution imageries become readily available.…”

Section: Introductionmentioning

confidence: 99%

Monitoring and evaluating spatial variability of soil salinity in dry and wet seasons in the Werigan–Kuqa Oasis, China, using remote sensing and electromagnetic induction instruments

Ding

2014

Geoderma

146

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“…Засоленность почв может быть оценена по данным дистанционного гиперспектрального зондирования и наземных измерений электропроводности почвы на тестовых участках [6]. Предложен алгоритм определения почвенной засоленности, основанный на измерении значений мнимой части комплексной диэлектрической проницаемости почвы [7].…”

Section: Doi 1014258/izvasu(2017)4-09unclassified

Remote Microwave Monitoring Of Saline Soils

Romanov¹,

Khvostov²

2017

izvasu

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Institute for Water and Environmental Problems of the Siberian Branch of the RAS (Barnaul, Russia)На примере степной зоны Западной Сибири про-веден комплексный микроволновый мониторинг за-соленных почв. Исследованы пространственно-вре-менные характеристики микроволнового излучения почвенного покрова в условиях почвенного засоле-ния. Исследованы зависимости микроволнового излу-чения засоленных почв Кулундинской степи от объем-ной влажности и температуры. Осуществлен анализ радиояркостных температур подстилающей поверх-ности, измеренных со спутника SMOS (Европейское космическое агентство). Для дистанционного опре-деления объемной влажности почвы предложено ис-пользовать данные микроволнового зондирования со спутника и зависимости коэффициентов излучения от объемной влажности и температуры, рассчитан-ные по результатам лабораторных измерений диэлек-трических характеристик засоленных почв. Для опре-деления значений радиояркостных температур (Т В ) подстилающей поверхности использовались данные спутника SMOS (продукт L1с), сделанные на часто-те 1.41 ГГц под углом зондирования 42.5º и откали-брованные в единицах радиояркостных температур. Данные продукта L1с привязаны к дискретной гео-дезической сетке DGG ISEA 4H9.Ключевые слова: дистанционное микроволновое зон-дирование, радиояркостная температура, коэффициент излучения, температура, влажность.A complex microwave monitoring of saline soils with the example of the West Siberia steppe zone is carried out. Spatio-temporal characteristics of the microwave radiation of soils under salinization are studied. Dependences of microwave radiation of Kulunda steppe saline soils on volumetric moisture and temperature are investigated. The analysis of underlying surface radiobrightness temperatures measured from the SMOS satellite is performed. The usage of SMOS remote sensing data and the dependence of emissivity on volumetric moisture and temperature coefficients calculated from laboratory measurements of saline soils dielectric properties is proposed for remote evaluation of volumetric soil moisture.Radiobrightness temperatures of underlying surface are obtained from SMOS satellite data (product L1c) at 1.41 GHz, 42.5º calibrated in units of radiobrightness temperature. The L1c data are tied to the DGG ISEA 4H9 discrete geodetic grid.

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The Application of Dielectric Retrieval Algorithms for Mapping Soil Salinity in a Tropical Coastal Environment Using Airborne Polarimetric SAR

Cited by 49 publications

References 16 publications

The use of remote sensing in soil and terrain mapping — A review

The use of remote sensing in soil and terrain mapping — A review

Monitoring and evaluating spatial variability of soil salinity in dry and wet seasons in the Werigan–Kuqa Oasis, China, using remote sensing and electromagnetic induction instruments

Remote Microwave Monitoring Of Saline Soils

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