Ross Sea Tidal Inverse Model ("RossTIM")

Laurence Padman, ESR
Phone: +1 (541) 753-6695
Fax: +1 (541) 753-1999
Lana Erofeeva, OSU
Phone: +1 (541) 737-3964
Fax: +1 (541) 737-2064
Map of K1 sea surface height amplitude (cm) from RossTIM.
Click on figure for clearer (*.png) version.

Ross Sea Tide Model, Summary and Download Instructions

RossTIM is a high-resolution, 1/8o x 1/24o (~4-5 km) regional model of the entire Ross Sea (see above figure) including the ocean cavity under the Ross Ice Shelf. The model is optimized by data assimilation of 3 cruises of vessel-mounted ADCP data from the western Ross Sea; see Erofeeva et al. (2003) for cruise track locations. Thus, we expect that model performance is best for prediction of tidal currents in the western Ross Sea. For other purposes, e.g., tide height estimates for the Ross Ice Shelf, other models such as our Circum-Antarctic Data Assimilation ("CADA") model (Padman et al. (2003) may be more accurate.

RossTIM is distributed with a Matlab-environment 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, view or download the README PDF file. We can also provide the package with Fortran access scripts.

The Matlab-based version of RossTIM can be downloaded by clicking on the link below. The file size is ~34 MB. If you prefer to receive the model by CD, please contact us.

Please reference Erofeeva et al. (2003) for the use of RossTIM.

RossTIM will continue to be developed through the life of the AnSlope program. We will also occasionally make updates to TMD.

Please 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 model and GUI software now.

If you prefer, the model 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 rosstim_tmd.zip (~34 MB)

References

  1. Erofeeva, S. Y., G. D. Egbert, and L. Padman, 2003: Assimilation of ship-mounted ADCP data for barotropic tides: Application to the Ross Sea, J. Atmos. Oceanic Technol., (submitted).
  2. Padman, L., S. Erofeeva, and I. Joughin, 2003: Tides of the Ross Sea and Ross Ice Shelf Cavity, Antarctic Science, 15(01), 31-40.