4-27-2026
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Directory contains duplicate versions of the daily global 0.25x0.25 sea level anomaly files: 
a) yearly files (dash1_????.nc, each 2.9G) and 
b) a single combined 32-year data set (dash1.1993-2024.tar.gz, 43G).
Each of these files contains two variables: sla and error, both written in 32-bit NC4 format with geographical 
coordinates and time information included in the files.

Two mean dynamic topography files are also included, mdt_Hybrid23-EGM2008_0.25x0.25.nc and the newer mdt_hybrid_cnes_cls22_cmems2020_0.25x0.25.nc