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A study of energy deposition estimators for monte carlo radiative transfer.
| Content Provider | CiteSeerX |
|---|---|
| Author | Jeffery, David J. |
| Abstract | In this paper, we study in detail 4 improved energy deposition estimators for Monte Carlo radiative transfer. These estimators improve the accuracy of energy deposition estimates made in thin optical depth zones in Monte Carlo calculations. The first of the improved estimators, which we call the case 1 esti-mator, was introduced by Lucy and the other 3 (the case 2, 3, and 4 estimators) are believed to be novel. The improvement in accuracy with the estimators is tested using the plane-parallel grey atmosphere for which an exact solution exists to which the Monte Carlo results can be compared. It is shown that the case 1 and 2 estimators give the best and approximately equal improvement in accuracy per computation time when used in thin optical depth zones. We recommend the use of the case 1 or case 2 estimators in thin optical depth zones in suitable Monte Carlo codes in preference to the ordinary Monte Carlo deposition estima-tor (which we call the case 0 estimator). The Monte Carlo code used for the test calculations can be downloaded from author’s website. Subject headings: radiative transfer — methods: numerical 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Monte Carlo Radiative Transfer Energy Deposition Estimator Thin Optical Depth Zone Computation Time Ordinary Monte Carlo Deposition Estima-tor Plane-parallel Grey Atmosphere Radiative Transfer Method Exact Solution Exists Suitable Monte Carlo Code Improved Estimator Equal Improvement Test Calculation Monte Carlo Code Energy Deposition Estimate Monte Carlo Calculation Subject Heading Monte Carlo Result Author Website |
| Content Type | Text |
