## Mie scattering routines- Introduction
- News and developments
- Download
- A list of available routines
- A note on notation
- A note on units
- Other scattering code available online
## IntroductionThis page provides descriptions of and access to a comprehensive set of routines for the calculation of light scattering parameters by particles. Most of the code is written in the IDL language, but there is also a FORTRAN routine available. ## News and developments16/09/21: 15/09/15: 21/06/13: 2/08/12: 1/07/08: 22/11/06: 9/05/05: 11/04/05: 30/03/05: 1/10/04: 17/02/04: ## Download the sourceThe EODG Mie scattering distribution may be downloaded as a gzipped tar file here. The distribution includes the routines listed below along with some supporting routines.## A list of available routinesThe routines currently available are listed below. Click on the programme name to see a full description.
## A note on notation
The notation used in describing the properties of a log normal distribution in these pages (and the associated routines) is as follows. A log normal distribution is described by the equation: where: (or n(r)) = the number density of particles as a function of radius, (or No) = the total number density of particles, (or r) = particle radius, (or rm) = the MEDIAN particle radius of the distribution, (or S) = the SPREAD of the distribution where standard deviation of the radius in log space is equal to the log of S. i.e. In both routines involving log normal distributions available here, No, rm and S are used to define the distribution described above. ## A note on units
This code has been written so that it contains no assumptions about the units of input or output variables. Thus, it is up to the user to work out the units of the output variables from the units of their inputs. In other words, you'd be a factor of 1000 off if you were to assume that the extinction was being returned in the more standard units of 1/km. You have been warned! ## Other scattering code available online
The following links should help to find Mie or other scattering code available on the web. This list is by no means comprehensive! - SCATTERLIB: A collection of links to light scattering codes maintained by UC San Diego.
- Scattport: A scattering meta-site for articles, books, conferences, code etc relating to light scattering.
- Michael Mishchenko and Larry Travis' scattering site at NASA GISS.
- An online Mie scattering calculator by Scott Prahl.
- MieCalc: A Java based online Mie scattering calculator by Bernhard Michel.
Maintained by Greg McGarragh |
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Earth Observation Data Group, Department of Physics, University of Oxford. | Page last updated: @15:18 GMT 07-Jun-2022 | ||||||||||||||||||||||