This report describes two software tools that, when used as front ends for the three-dimensional backward Monte Carlo atmospheric-radiative-transfer model (RTM) McArtim, facilitate the generation of lookup tables of volcanic-plume optical-transmittance characteristics in the ultraviolet/visible-spectral region. In particular, the differential optical depth and derivatives thereof (that is, weighting functions), with regard to a change in SO2 column density or aerosol optical thickness, can be simulated for a specific measurement geometry and a representative range of plume conditions. These tables are required for the retrieval of SO2 column density in volcanic plumes, using the simulated radiative-transfer/differential optical-absorption spectroscopic (SRT-DOAS) approach outlined by Kern and others (2012). This report, together with the software tools published online, is intended to make this sophisticated SRT-DOAS technique available to volcanologists and gas geochemists in an operational environment, without the need for an indepth treatment of the underlying principles or the low-level interface of the RTM McArtim.
Kern, Christoph, 2016, An interface for simulating radiative transfer in and around volcanic plumes with the Monte Carlo radiative transfer model McArtim: U.S. Geological Survey Open-File Report 2016–1045, 18 p., http://dx.doi.org/10.3133/ofr20161045.
ISSN: 2331-1258 (online)
Table of Contents
- References Cited
|Publication Subtype||USGS Numbered Series|
|Title||An interface for simulating radiative transfer in and around volcanic plumes with the Monte Carlo radiative transfer model McArtim|
|Series title||Open-File Report|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Volcano Science Center|
|Description||iv, 18 p.|
|Online Only (Y/N)||Y|
|Additional Online Files (Y/N)||N|
|Google Analytic Metrics||Metrics page|