Spatial Smoothing on the Sphere
Open Access
- 1 December 1984
- journal article
- Published by American Meteorological Society in Monthly Weather Review
- Vol. 112 (12) , 2524-2529
- https://doi.org/10.1175/1520-0493(1984)112<2524:ssots>2.0.co;2
Abstract
The equivalence of taking an isotropic, moving, spatial average of a two-dimensional field on the sphere to multiplying the coefficients in its spherical harmonics representation with factors that depend only on the total wavenumber n is discussed. Equivalent spatial averaging operators for several such spectral filters are displayed.Keywords
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