When reading the presentation of Rod Kennedy on Kernel-Based Formulations of Spatio-Spectral and Three Related Transforms on the Sphere featured in the Science on the Sphere workshop, I was reminded of this earlier blog entry ( It's Friday afternoon, it's Hamming's time: Antipode Seismic Maps ? )
Could the second map be roughly approximated through the use of correlation between zero-th, first and higher order harmonic on the sphere ?
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