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Updated: Jun 12, 2026

Scattering And Absorption of Light in Planetary Regoliths

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Radiative transfer calculations for characterizing obscured surfaces using time-dependent backscattered pulses.

T Duracz, N J McCormick

|June 16, 2010

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Estimating surface albedo and distance behind scattering atmospheres is challenging due to geometric broadening of light signals. Graphical inversion maps may aid in solving this inverse problem for atmospheric remote sensing.

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Area of Science:

Atmospheric Optics
Radiative Transfer
Remote Sensing

Background:

Accurate estimation of surface albedo and atmospheric properties is crucial for climate modeling and remote sensing.
Multiple-scattering atmospheres complicate direct measurements, necessitating advanced inversion techniques.
Geometric effects in time-resolved backscattering introduce significant broadening, challenging inverse problem solutions.

Purpose of the Study:

To perform numerical calculations for estimating surface albedo and distance behind a multiple-scattering atmosphere.
To analyze the impact of geometric effects on time-resolved backscattered irradiance.
To explore the utility of graphical inversion methods for solving this inverse problem.

Main Methods:

Numerical calculations were conducted for an idealized plane-geometry atmosphere.
An instantaneous pulse uniformly illuminated the atmosphere with known properties.
Analysis focused on time-broadening of backscattered irradiance due to geometric effects.

Main Results:

Backscattered irradiance broadening increases with obscuring medium thickness.
More isotropic scattering, like Rayleigh scattering, exacerbates time broadening.
Isocline maps of observables suggest potential for graphical inversion.

Conclusions:

Geometric effects significantly complicate the inverse problem of estimating surface albedo and distance.
The degree of time broadening is dependent on atmospheric thickness and scattering properties.
Graphical inversion maps show promise for practical applications in atmospheric remote sensing.