Change Log

Date	Version	Description
4/27/2026	beta_v0a	SGEOID2022: Tapered meridian discontinuity near seams of US and Canada grids combination. SGEOID2022 uncertainties: Combined US and Canadian uncertainty grids using geometric mean and preclipping of extreme values in NGS grid. DEFLEC2022: Minor changes based on SGEOID2022 changes DGEOID2022: Removed high-resolution enhancements to Alaskan mountain glaciers and reverted to lower-resolution GRACE-only solution. DGEOID2022 uncertainties: Major change to grid computation method, reducing overall magnitude of uncertainties. GM2022: Recomputed dynamic components with new DGEOID2022 grid. Truncated at degree/order 180 instead of 359. Changed recommended interpolation method from biquadratic to bicubic.
6/16/2025	beta_v0	Initial release of beta model.