✦ LIBER ✦

Program to calculate the least-squares estimates of the spherical harmonic expansion coefficients of an equally angular-gridded scalar field

✍ Scribed by Zdeněk Martinec

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 644 KB
Volume: 64
Category: Article
ISSN: 0010-4655
DOI: 10.1016/0010-4655(91)90057-r

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✦ Synopsis

The program SPHAN estimates the spherical harmonic coefficients of a scalar field by least-square fitting of data values measured on an equal angular grid on a globe.

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✍ Zdeněk Martinec 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 464 KB

A program to compute the spectral harmonic expansion coefficients of the product of two triangular truncated scalar fields is presented. The calculations are performed by a transform method which is more computer efficient relative to the traditional interaction coefficient approach or finite-diffe