Mie Scattering Absorption Coefficients of Silicate and Water at Various Wavelengths: Cross-Platform Validation with Laboratory, Satellite and JWST Data
Keywords:
Mie theory, silicate, absorption coefficient, remote sensing, satelliteAbstract
Background: Precisely characterizing the interaction of electromagnetic waves with planetary and cosmic matter is essential for contemporary remote sensing, atmospheric science, and astrophysics [1].
Purpose: We have calculated here wavelength-dependent absorption coefficients of silicate and water particles here, according to the Mie scattering theory to obtain the optical properties of them based on MATLAB numerical implementation Mie codes [5, 6].
Method: The Mie theory is the only analytic exact solution for electromagnetic scattering and absorption by homogeneous, isotropic spheres of arbitrary size [3, 24]. Cosmic Dust Models, and various remote-sensing methods [10].
Results: This study shows high cross-platform agreement and provides a sound foundation for planetary retrievals,
Conclusions: The ubiquitous 9.7 micrometer silicate absorption feature is well represented, with calculated opacities that are consistent with laboratory FTIR measurements and verified in both CALIPSO lidar ratios of atmospheric dust and JWST / MIRI mid-IR exoplanet and disk spectra.
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Young, S. A., Vaughan, M. A., et al., “CALIPSO Lidar Ratio and Aerosol Type Product.” Atmospheric Measurement Techniques 11, 2035–2052 (2018).
Chipade, S. D., et al., “Lidar ratio estimation for dust and smoke using CALIPSO and AERONET.” Remote Sensing 15, 1156 (2023).
Pontoppidan, K. M., Sargent, B., et al., “JWST Sensitivity to Silicate Clouds in Exoplanet Atmospheres.” Nature Astronomy 7,532–545 (2023). https://www.nature.com/articles/s41550-023-01923-7
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Articles in the Graduate Journal of Interdisciplinary Research, Reports and Reviews (Grad. J. InteR3) by Vyom Hans Publications are published and licensed under a Creative Commons Attribution- CC-BY 4.0 International License.
