TPXO9-atlas is our latest 1/30 degree resolution fully global solution, obtained by combining 1/6 degree base global solution TPXO9.v1 and thirty 1/30 degree resolution local solutions for all coastal areas, including Arctic and Antarctic. All TPXO9-atlas patches were obtained using consistent bathymetry and boundary conditions from TPXO9 base solution, using the same altimetry data sets for assimilation. The local solution boundaries are shown above with frames on the background of TPXO9-atlas M2 elevation amplitude (color) and phase (contours).
We provide both TPXO9-atlas 1/30 degree resolution and TPXO9 1/6 degree base global solution in two popular formats:
our traditional binary format (OTPS format);
Since the files are large, we provide one tidal constituent per file. OTPS (nc) does allow to work with multiple single-constituent TPXO9-atlas files. MATLAB toolbox TMD does not. Script tpxo_atlas2local.m can be used as TMD plug_in. The script makes a multi-constituent outcut from the single constituent TPXO8-atlas binary files for an area of your choice. This multi-constituent outcut can then be used with TMD.
TPXO9-atlas is set of elevation/transport files one constituent per file and bathymetry. TPXO9v* includes two multi-constituent files of elevations/transports and bathymetry.
v3, release Nov 1, 2020: improvements in ANT, using SRTM15 bathymetry and SCAR Antarctic Digital Database coast line; ARC, HBB, ESB, IND, SAN, using SRTM15 bathymetry and Natural Earth coastline version 4.1.0.
TPXO9-atlas-v3/v4 fits on average 3% more of CryoSat variance in Arctic and 1.5% more in Antarctic compared to TPXO9-atlas-v2
TPXO9v4a - multi-constituent global 1/6 degree resolution hybrid product. It is the same as TPXO9.v1 in the open ocean, and it is averaged TPXO9-atlas-v4 onto TPXO9 1/6 degree resolution grid in coastal areas. Release Dec 24, 2020
TPXO9v1, TPXO9v4a and TPXO9-atlas-v4 are available for academic research and other non-commercial uses and require registration.
To refer to our models/software in your publications please use the citation: