|
|||||
|
|
Scattering matrices and expansion coefficients of martian analogue palagonite particles |
|
| Authors: | E.C. Laan,H. Volten,D.M. Stam,O. Muñ oz,T.L. Roush |
| Affiliation: | a Astronomical Institute ‘Anton Pannekoek,’ University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands b TNO Science and Industry, Stieltjesweg 1, 2600 AD, Delft, The Netherlands c SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands d DEOS, Aerospace Engineering, Technical University Delft, Kluyverweg 1, 2629 HS, Delft, The Netherlands e Instituto de Astrofísica de Andalucía (CSIC), C/ Camino Bajo de Huétor, 50, 18008 Granada, Spain f NASA Ames Research Center, MS 245-3, Moffett Field, CA 94035-1000, USA |
| Abstract: | We present measurements of ratios of elements of the scattering matrix of martian analogue palagonite particles for scattering angles ranging from 3° to 174° and a wavelength of 632.8 nm. To facilitate the use of these measurements in radiative transfer calculations we have devised a method that enables us to obtain, from these measurements, a normalized synthetic scattering matrix covering the complete scattering angle range from 0° to 180°. Our method is based on employing the coefficients of the expansions of scattering matrix elements into generalized spherical functions. The synthetic scattering matrix elements and/or the expansion coefficients obtained in this way, can be used to include multiple scattering by these irregularly shaped particles in (polarized) radiative transfer calculations, such as calculations of sunlight that is scattered in the dusty martian atmosphere. |
| Keywords: | Polarimetry Radiative transfer Mars, atmosphere Mars, surface Mars, climate |
| 本文献已被 ScienceDirect 等数据库收录！ | |