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Large-scale horizontal flows from soup observations of solar granulation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ferguson, S. H. Title, A. M. Simon, G. W. November, L. J. Tarbell, T. D. |
| Copyright Year | 1987 |
| Description | Using high resolution time sequence photographs of solar granulation from the SOUP experiment on Spacelab 2, large scale horizontal flows were observed in the solar surface. The measurement method is based upon a local spatial cross correlation analysis. The horizontal motions have amplitudes in the range 300 to 1000 m/s. Radial outflow of granulation from a sunspot penumbra into surrounding photosphere is a striking new discovery. Both the supergranulation pattern and cellular structures having the scale of mesogranulation are seen. The vertical flows that are inferred by continuity of mass from these observed horizontal flows have larger upflow amplitudes in cell centers than downflow amplitudes at cell boundaries. |
| File Size | 849855 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880002239 |
| Archival Resource Key | ark:/13960/t0vq7tp86 |
| Language | English |
| Publisher Date | 1987-09-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Solar Granulation Horizontal Orientation Cross Correlation Solar Atmosphere Magnetohydrodynamic Flow Sunspots Solar Oscillations Penumbras Astronomical Photography Benard Cells Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
