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2. 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.

3. www.sciencedirect.com › science › articleEstimating snow depth based on dual polarimetric radar index ...

   www.sciencedirect.com › science › article

   Jun 1, 2024 · This framework is based on the dual-polarimetric radar vegetation index (DpRVI c), which enhances the snow volume scattering signal and reduces soil interference by integrating soil purity and a conditioning factor to fully exploit the advantages of polarimetric SAR information.

4. www.sciencedirect.com › science › articleRetrieving snow wetness based on surface and volume ...

   www.sciencedirect.com › science › article

   Nov 1, 2020 · In this study, we proposed a new method to retrieve snow wetness from full-polarimetric synthetic aperture radar (SAR) data. First, the dominant scattering components, i.e. surface and volume scattering, in wet-snow conditions were obtained by polarimetric decomposition.

   • Author: Wei Ma, Pengfeng Xiao, Pengfeng Xiao, Xueliang Zhang, Yina Song, Tengyao Ma, Lizao Ye

   • Publish Year: 2020

5. agupubs.onlinelibrary.wiley.com › doi › 10Identification of Snow Using Fully Polarimetric SAR Data ...

   agupubs.onlinelibrary.wiley.com › doi › 10

   Jan 23, 2020 · Pivot indicated that the presence of short vegetation (height < 30 cm) does not significantly affect the backscatter from snow surfaces. Based on these observations, the range of H (1- A ) < 0.5 is very low for snow and bare soil surface, with the lower values indicating the presence of snow.

6. agupubs.onlinelibrary.wiley.com › doi › fullIn situ measurements of polarization properties of snow ...

   agupubs.onlinelibrary.wiley.com › doi › full

   Nov 25, 2014 · In the VIS, the volume scattering contribution to the reflected light is dominant since the light absorption by the ice is so small. The volume scattering contribution is typically due to multiple scattering implying that the reflected light is basically unpolarized.

7. www.researchgate.net › figure › mage-shows-that-theImage shows that the polarizer is installed in front of the ...

   www.researchgate.net › figure › mage-shows-that-the

   The effect of a densely packed medium in snow polarization was theoretically studied based on ray-tracing simulations [43] , and it was later confirmed by Lv and Sun [44] that the changes of the ...

8. People also ask

   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 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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   How does polarization affect snow depth retrieval?

   • Snow depth retrieval using SAR data based on polarization information faces several key challenges. First, SAR signals are considerably influenced by diverse surface conditions, vegetation cover, and complex terrain. These factors can change the scattering properties of SAR signals, thereby impacting the retrieval accuracy.

   Estimating snow depth based on dual polarimetric radar index

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

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   How does polarimetric decomposition affect snow wetness?

   • The surface and volume scattering components obtained by the polarimetric decomposition were correlated with the Bragg coefficients and Fresnel power transmission coefficients respectively to retrieve snow wetness ( Surendar et al., 2013, Surendar et al., 2015 ).

   Retrieving snow wetness based on surface and volume

   www.sciencedirect.com/science/article/pii/S0924271620302355

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   Does snow volume scattering affect cross polarization ratio?

   • According to the study outlined by Lievens et al. (2022), there is a significant correlation between the cross-polarization ratio (CR) and snow volume scattering, with the CR increasing as the snowpack thickness increases.

   Estimating snow depth based on dual polarimetric radar index

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

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   Does snow volume scattering affect snow depth?

   • The snow volume scattering component in vh-polarization is no longer negligible compared to the contribution of the ground surface. The cross-polarization ratio σ 0vh / σ 0vv (in linear scale, converted to dB) shows overall a stronger correlation with snow depth than σ 0vh (Fig. 3, middle and right columns).

   Snow depth variability in the Northern Hemisphere mountains observed

   www.nature.com/articles/s41467-019-12566-y

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9. www.nature.com › articles › s41467/019/12566-ySnow depth variability in the Northern Hemisphere mountains ...

   www.nature.com › articles › s41467/019/12566-y

   Oct 11, 2019 · The co-polarized σ 0 vv measurements (Fig. 3, left column) show little variation throughout the winter, due to the limited absorption or scattering by dry snow in vv-polarization at C-band.