کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5430761 1397418 2008 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
SASKTRAN: A spherical geometry radiative transfer code for efficient estimation of limb scattered sunlight
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
SASKTRAN: A spherical geometry radiative transfer code for efficient estimation of limb scattered sunlight
چکیده انگلیسی

The inversion of satellite-based observations of limb scattered sunlight for the retrieval of constituent species requires an efficient and accurate modelling of the measurement. We present the development of the SASKTRAN radiative transfer model for the prediction of limb scatter measurements at optical wavelengths by method of successive orders along rays traced in a spherical atmosphere. The component of the signal due to the first two scattering events of the solar beam is accounted for directly along rays traced in the three-dimensional geometry. Simplifying assumptions in successive scattering orders provide computational optimizations without severely compromising the accuracy of the solution. SASKTRAN is designed for the analysis of measurements from the OSIRIS instrument and the implementation of the algorithm is efficient such that the code is suitable for the inversion of OSIRIS profiles on desktop computers. SASKTRAN total limb radiance profiles generally compare better with Monte-Carlo reference models over a large range of solar conditions than the approximate spherical and plane-parallel models typically used for inversions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 109, Issue 1, January 2008, Pages 52-73
نویسندگان
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