TPXO10-atlas
TPXO10-atlas includes gridded to 1/30 degree harmonic constants of the MSL-relative sea-surface elevations and tidal transports/currents for
8 primary tides M2, S2, N2, K2, K1, O1, P1, Q1
2 long period tides Mf, Mm
3 non-linear tides M4, MS4, MN4
2 minor tides 2N2 and S1
TPXO10-atlas is obtained by combining 1/6 degree base global solution TPXO10.v2 and thirty 1/30 degree resolution local patches for all coastal areas, including Arctic and Antarctic. All TPXO10-atlas patches were obtained using consistent bathymetry and boundary conditions from TPXO10 base solution, using the same altimetry data sets for assimilation.
TPXO10-atlas highlights
TPXO10-atlas-v2 - the latest (release date is Aug 14, 2024) in the TPXO-atlas series:
features improved coast line and bathymetry, defined at z/u/v C-grid nodes for all patches
assimilated ~twice longer Topex/Poseidon/Jason time series compared to TPXO9-atlas
assimilated Cryosat-2 data for ANT and ARC patches for 4 major constituents: M2, S2, K1, O1
assimilated multiple coastal tide gauges data sets, including Stammer's
verified against independent (not-assimilated) tide gauge data sets and hourly drifter's data
The figure shows the absolute difference between TPXO10-atlas-v2 and TPXO9-atlas-v5 on logarithmic scale, so the blue color corresponds to ~1mm, green ~1cm, orange ~10cm change in amplitude
TPXO10-atlas validation
The table shows RMS misfit (cm) to the tide gauges sets, described in:
Padman and King (Antarctic - Ant P&K)
Hart-Davis et al. (Arctic H-Davis)
We provide both TPXO10-atlas and TPXO9-atlas, 1/30 degree resolution in two popular formats:
our traditional binary format (OTPS format);
netcdf format
Note: our netcdf format is different from TMD3 consolidated netcdf 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 TMD2.5 does not. Script tpxo_atlas2local.m can be used as TMD2.5 plug-in. The script makes a multi-constituent outcut from the single constituent TPXO-atlas binary files for an area of your choice. This multi-constituent outcut can then be used with TMD2.5.
Note: You can convert TPXO9-atlas binary to the TMD3 consolidated netcdf format with a script provided with TMD3.
TPXO10-atlas and TPXO9-atlas 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:
Check out our TPXO Web Service to get tide predictions from TPXO10-atlas at any location and time.