SOHO/MDI solar oscillations

Raw Data /net/kana/data/fun/solar/solar.HH
Velocity Model /net/kana/data/fun/solar/solarvel.HH
Usage Passive seismology Rickett and Claerbout (1999); Unsolved challenge: can you image the sides/bottom of the sunspot?? Try cross-correlation plus turning ray-migration.
Geometry

114 skye% In solar.HH 
solar.HH:
	in="stdin"
	expands to in="stdin"
	esize=4
	n1=256	n2=256	n3=512	n4=1		   33554432 elem	  134217728 bytes
	d1=0.8248	d2=0.8248	d3=0.06	d4=1
	o1=0	o2=0	o3=0	o4=0
	label1=distance (Mm)
	label2=distance (Mm)
	label3=time (ks)

Problem
History of Data Given to us by Tom Duvall and Sasha Kosovichev in the solar physics department at Stanford.
Preprocessing Projection to tangent plane
Proprietary Considerations None, but for courtesy acknowledge the Solar Oscillations Investigation team ( http://soi.stanford.edu) and/or reference Scherrer et al. (1995).

 

shortcube
Figure 1 Oscillation data

 

solarvel
Figure 2 Velocity model (note: better check units).