2021-05-21 08:48:37.0 [tstevens] update Definition (https://podaac.jpl.nasa.gov/dataset/GRACE_GSM_L2_GRAV_JPL_RL06);
2021-05-17 09:00:44.0 [tstevens] Insert Concept add broader relation (SPHERICAL HARMONIC MODELS [8fb5ea8a-96ba-47cf-91cd-c7b64fbcd54a,621136] - MODELS [e1f20631-b5b9-438c-b5c2-b1fa0fce100a,617963]);
MODELS
SPHERICAL HARMONIC MODELS
An orthogonal set of basis functions to define the amplitudes at the surface of a sphere. It is often employed in solving partial differential equations in many scientific fields, and can be thought of as the 2D Fourier transform of a spatial grid.