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1. • • The sensitivity of synthetic aperture radar (SAR) polarization information to snow depth changes provides new opportunities for regional snow depth retrieval in mountains with thick snow cover. However, interference from soil signals can affect the accurate quantification of snow volume scattering signals.
     www.sciencedirect.com/science/article/pii/S1569843224002279

     Estimating snow depth based on dual polarimetric radar index ...

2. People also ask

   Does soil interference affect snow volume scattering?

   • Abstract The sensitivity of synthetic aperture radar (SAR) polarization information to snow depth changes provides new opportunities for regional snow depth retrieval in mountains with thick snow cover. However, interference from soil signals can affect the accurate quantification of snow volume scattering signals.

   Estimating snow depth based on dual polarimetric radar index

   www.sciencedirect.com/science/article/pii/S1569843224002279

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   Does soil polarization affect snow volume scattering?

   • They successfully estimated snow depth in the mountainous regions of the Northern Hemisphere using the cross-polarization ratio method, creating a new means for the application of polarization characteristics in snow depth retrieval. However, soil signals may affect the accurate quantification of snow volume scattering signals.

   Estimating snow depth based on dual polarimetric radar index

   www.sciencedirect.com/science/article/pii/S1569843224002279

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   Does soil affect snow depth retrieval?

   • This finding is consistent with that in existing research. For instance, Naeimi et al. (2012)noted that the backscatter coefficient is relatively stable in high-latitude regions with lower temperatures, suggesting that the impact of soil on snow depth retrieval is reduced under specific conditions.

   Estimating snow depth based on dual polarimetric radar index

   www.sciencedirect.com/science/article/pii/S1569843224002279

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   How does snow affect soil purity?

   • (3):(3)βc=σVV°σVH°+σVV°According to this equation, we found that the presence of snow on the soil surface causes an increase in the VH polarization, which in turn reduces the value of βc. This change further affects the products of the mcand βc, decreasing the soil purity.

   Estimating snow depth based on dual polarimetric radar index

   www.sciencedirect.com/science/article/pii/S1569843224002279

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   How is microwave scattering linked to snow microstructural properties?

   • This requires a precise understanding of how microwave scattering is linked to snow microstructural properties (density, grain size, grain shape and arrangement). This link has so far relied on empirical adjustments of the theories, precluding the development of robust retrieval algorithms.

   The Microwave Snow Grain Size: A New Concept to Predict Satellite

   agupubs.onlinelibrary.wiley.com/doi/10.1029/2021AV000630

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   What causes scattering in snow?

   • Scattering in snow is caused by the dielectric contrast between air and ice, and its amplitude highly depends on the length scales of the microstructure. The “snow grain size” is an intuitive property commonly estimated in the field (Fierz et al., 2009 ).

   The Microwave Snow Grain Size: A New Concept to Predict Satellite

   agupubs.onlinelibrary.wiley.com/doi/10.1029/2021AV000630

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3. www.researchgate.net › publication › 380348371Estimating snow depth based on dual polarimetric radar index ...

   www.researchgate.net › publication › 380348371

   Apr 24, 2024 · soil signals can affect the accurate quanti cation of snow volume scattering signals. The aim of this study was to develop a dual-polarimetric radar snow depth estimation...

4. www.sciencedirect.com › science › articleSnow depth retrieval method for PolSAR data using multi ...

   www.sciencedirect.com › science › article

   Polarimetric Synthetic Aperture Radar (PolSAR) can precisely describe the backscattering of the target and emerge as an effective tool for SD retrieval. The backscattering component of dry snow is mainly composed of volume scattering from the snowpack and surface scattering from the snow-ground interface.

5. www.sciencedirect.com › science › articleComparison between a multi-scattering and multi-layer snow ...

   www.sciencedirect.com › science › article

   May 17, 2010 · However, a number of snow pack properties, including snow density, particle size, crystal shape, stratification, ground surface roughness and soil moisture, affect the microwave scattering signals and need to be properly modeled and exploited.

   • Author: Jinyang Du, Jiancheng Shi, Jiancheng Shi, Helmut Rott

   • Publish Year: 2010

6. agupubs.onlinelibrary.wiley.com › doi › 10The Microwave Snow Grain Size: A New Concept to Predict ...

   agupubs.onlinelibrary.wiley.com › doi › 10

   Jul 4, 2022 · Microwave scattering by snow is reformulated as a function of snow physical and measurable variables only, without empirical adjustments. Two new metrics, microwave grain size and polydispersity, are introduced to describe the length scale complexity of the snow microstructure.

   • Cited By: 3
   • Volume: 3, Issue4

   • Published: 04 July 2022

7. deepblue.lib.umich.edu › bitstream › handleSurface and Volume Scattering Model in Microwave Remote ...

   deepblue.lib.umich.edu › bitstream › handle

   Table 3.1 parameter ℎ for the air/soil and snow/soil interface with rms height of 5 cm from L to Ku band. The effective permittivity of snow is 1.44 for snowpack with snow density 275 kg/m3 and grain size 1 mm. ..... 86

8. ieeexplore.ieee.org › document › 9385078Improving the Snow Volume Scattering Algorithm in a Microwave ...

   ieeexplore.ieee.org › document › 9385078

   This work demonstrates that the VS difference between 18 and 36 GHz is larger and the dependence of VS on grain size is weaker than those represented by existing methods. Volume scattering (VS) estimation plays a critical role in microwave emission modeling of the snowpack.