TPXO6.2: Global Inverse Tide Model

Gary Egbert, OSU

Map of M2 sea surface height amplitude (m) from TPXO6.2. Click on image for clearer figure.
Phone: +1 (541) 737-2947
Fax: +1 (541) 737-2064

Lana Erofeeva, OSU
Phone: +1 (541) 737-3964
Fax: +1 (541) 737-2064

Laurence Padman, ESR (TMD issues)
Phone: +1 (541) 753-6695
Fax: +1 (541) 753-1999

 
Funded by NASA
 

Model and Software Summary

TPXO6.2 is a medium-resolution, 1/4o x 1/4o global model developed by Gary Egbert and Lana Erofeeva at Oregon State University. The model domain includes ocean cavities under the floating ice shelves. The principal assimilated data set is TOPEX/Poseidon (T/P) satellite radar altimetry, between +/-66o latitude. However, the model also includes patches for various "coastal" oceans, including the Antarctic (assimilating tide gauge data used in circum-Antarctic inverse model CADA00.10 and the Ross Sea height-based inverse model Ross_Inv_2002, and the Arctic (cf. the Arctic inverse model AOTIM-5). TPXO6.2 is a good choice for a global tide model, particularly for high latitudes since it utilizes recent Antarctic grounding line information and Antarctic and Arctic tide height data. In general, however, we now recommend the TPXO7.1 Global Inverse model.

TPXO6.2 is distributed with a Matlab Graphical User Interface ("GUI") called "TMD" (the Tide Model Driver). TMD can be used to quickly access and browse the model, and to make tide height and current (velocity component) predictions. The TMD package also contains scripted functions for use in batch-mode Matlab processing. For an overview of the GUI and scripts, view or download the README PDF file. For FORTRAN access, please go to the Oregon State "OTIS" web page.

Please reference Egbert and Erofeeva (2002) for the use of TPXO6.2.

Contact Laurie Padman for advice on which model to use for a particular application, to be added to an update notification list, or for further information on the tide models.

Download Instructions

The Matlab-based version of TPXO6.2, plus the TMD Toolbox, can be downloaded by clicking on the links below. The TPXO6.2 file size is ~144 MB. If you prefer to receive the model by CD, please contact us. TPXO tide models will continue to be developed by OSU. We will also occasionally make updates to TMD.

Download model (~144 MB)

Download TMD Matlab Toolbox

Download TMD Readme PDF

If you prefer, the model and TMD toolbox can be downloaded from our FTP site, as follows:

  1. ftp ftp.esr.org
  2. login: anonymous
  3. password: email address
  4. cd pub/datasets/tmd
  5. binary
  6. get tpxo62_tmd.zip (~144 MB)
  7. get tmd_toolbox.zip (~0.3 MB)

References

    Egbert, G.D., and S.Y. Erofeeva, 2002: Efficient inverse modeling of barotropic ocean tides, J. Atmos. Oceanic Technol., 19(2), 183-204.