Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20114102h&link_type=abstract
American Astronomical Society Meeting 201, #141.02; Bulletin of the American Astronomical Society, Vol. 35, p.567
Astronomy and Astrophysics
Astronomy
Scientific paper
Remote sensing observations of the solar wind in the inner heliosphere fill an observational gap between near-Sun remote sensing and near-Earth in-situ data. We use heliospheric tomography to follow solar disturbances from Sun to Earth as the basis for a real-time space weather system. Over the past few years interplanetary scintillation observations from the Solar-Terrestrial Laboratory at Nagoya University, Japan, were the main source of data. In the near future Thomson scattering observations from the recently launched Solar Mass Ejection Imager (SMEI) will be added.
Here we show some recent developments in the visualization techniques used to process the volume data sets produced by the tomographic analyis: solar wind density, velocity and magnetic field. 3D visualization is based on an image rendering engine written in the IDL programming language. In addition, we use hardware-based volume rendering with the Volume Pro PCI board from TeraRecon. This board renders 4D volume data (three spatial, plus the time dimension) in real-time, allowing interactive manipulation of evolving (time-dependent) data sets.
This work was supported through NASA grant NAG5-9423 and Air Force MURI grant F49620-01-0359.
Dunn Tyler
Hick Pierre P.
Jackson Bernard V.
Rappoport S. A.
Wang Chenjie
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