Comparison of geometrical mapping for ring diagram analysis

Details Comparison of geometrical mapping for ring diagram analysis Comparison of geometrical mapping for ring diagram analysis

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jphcs.118a2090z&link_type=abstract

Journal of Physics: Conference Series, Volume 118, Issue 1, pp. 012090 (2008).

Physics

1

Scientific paper

Mapping the solar surface is a crucial step in any local helioseismology technique. Because the acoustic waves propagate along great circles at the solar surface, it has been shown that these circles need to be used in the geometrical construction of the plane grid. We study different types of projections based on great circles for the calculation of sub-surface flows from ring diagram analysis of GONG data. Azimuthal equidistant projection, transverse cylindrical projection, gnomonic projection and stereographic projection produce almost the same velocity fields with standard patch sizes (15°x 15°). The difference between the four projections is more noticeable when larger patches (30° x 30°) are used.

Affiliated with

Also associated with

No associations

Rating

Comparison of geometrical mapping for ring diagram analysis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Comparison of geometrical mapping for ring diagram analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comparison of geometrical mapping for ring diagram analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-853556