Regional and Local Tidal Models

For past two decade multiple local and regional tidal solutions were obtained with OTIS. Various altimetric (Topex Poseidon, Topex Tandem, ERS, GFO) and other data sets (i.e. tide gauges, ship born ADCP) were assimilated into various models. Local inverse solutions generally fit the data better for complex topographic areas and in shallow water due to their higher resolution and more coastal data assimilated. Our latest ATLAS global solutions at 1/30 degree resolution exceed the older models quality and resolution in vast majority of locations. However the regional models at 1/12° are still can be useful in the deep ocean, and the local models at higher resolution (i.e. 1/60°, 1km) can still be of comparable quality to TPXO-atlas. Historical local solutions at 1/30° or coarser has been depreciated and are not served anymore.

List of regional and local barotropic tidal models freely available for download:

  1. Atlantic Ocean 1/12° format: bin recommended software: OTPS, TMD

  2. Pacific Ocean 1/12° format: bin recommended software: OTPS, TMD

  3. Indian Ocean 1/12° format: bin recommended software: OTPS, TMD

  4. Oregon Coast 1km format: bin described in [Erofeeva, Egbert, Kosro 2003] recommended software: OTPS, TMD

  5. Iceland 1/60° format: bin described in [Vage et al 2013] recommended software: OTPS, TMD

  6. Arctic 5km described and served at Arctic Data Center

  7. Gulf of Mexico 1/45° format: bin recommended software: OTPS, TMD

  8. Arabian Sea 1/60° format: bin recommended software: OTPS, TMD

  9. Amazon Shelf 1/60° format: bin recommended software: OTPS, TMD

All our models and software are under the same license:

COPYRIGHT Egbert & Erofeeva, OSU, 2010

Regional and local models are freely available for academic research, and other non-commercial uses.

They can be licensed for commercial use at modest cost - please contact Dr. Erofeeva or Prof. Egbert on details.

To refer to our models/software in your publications please use the citation:

Egbert, Gary D., and Svetlana Y. Erofeeva. "Efficient inverse modeling of barotropic ocean tides." Journal of Atmospheric and Oceanic Technology 19.2 (2002): 183-204.