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[Untitled]
- Source :
- Solar Physics. 202:27-39
- Publication Year :
- 2001
- Publisher :
- Springer Science and Business Media LLC, 2001.
-
Abstract
- Below the scale of supergranules we find that cellular flows are present in the solar photosphere at two distinct size scales, approximately 2 Mm and 4 Mm, with distinct characteristic times. Simultaneously present in the flow is a non-cellular component, with turbulent scaling properties and containing 30% of the flow energy. These results are obtained by means of wavelet spectral analysis and modeling of vertical photospheric motions in a 2-hour sequence of 120 SOHO/MDI, high resolution, Doppler images near disk center. The wavelets permit detection of specific local flow patterns corresponding to convection cells.
- Subjects :
- Physics
Scale (ratio)
010308 nuclear & particles physics
Turbulence
Astronomy and Astrophysics
Astrophysics
01 natural sciences
Physics::Fluid Dynamics
symbols.namesake
Wavelet
Flow (mathematics)
Space and Planetary Science
0103 physical sciences
symbols
Astrophysics::Solar and Stellar Astrophysics
010303 astronomy & astrophysics
Doppler effect
Scaling
Energy (signal processing)
Convection cell
Subjects
Details
- ISSN :
- 00380938
- Volume :
- 202
- Database :
- OpenAIRE
- Journal :
- Solar Physics
- Accession number :
- edsair.doi...........b16d05c6347c83f0f6ad722e6334ca28