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Oct 11, 2019 · The snow volume scattering component in vh-polarization is no longer negligible compared to the contribution of the ground surface.
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Apr 12, 2017 · In homogenously dry snow, the main backscattering effect is due to the snow-ground interface (part (2) in Figure 4(b)), whereas the volume scattering is small and its effect on the interferometric phase is negligible (part (3) in Figure 4(b)) .
Jul 10, 2017 · An understanding of the sensitivity of the light transmission and absorption at common lidar wavelengths to snow grain size and snow liquid water content is important for an assessment of the contribution of laser interaction with the snow surface to the uncertainties in snow-depth retrievals.
- Jeffrey S. Deems, Thomas H. Painter, David C. Finnegan
- 2013
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.
Within the resolution cell of SAR, the volume scattering of snow can be simplified to a lot of small spherical snow particles with random orientation, and the average volume scattering coherence matrix is expressed as (8) over all possible angles θ, where P(θ) is the distribution function as (9).
Apr 8, 2022 · Snow is a crucial element in the Earth’s system, but snow depth and mass are very challenging to be measured globally. Here, we provide the theoretical foundation for deriving snow depth directly from space-borne lidar (ICESat-2) snow multiple scattering measurements for the first time.
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In the snowpack volume, the scattering effects cause a redistribution of the upwelling radiation corresponding to the snow thickness and snow microstructure. The redistribution of the upwelling radiation is generally modeled using the Mie scattering theory, which accounts for the snow particle size (Chang, Foster, and Hall Citation 1987 ).
