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Sampling strategies and four-dimensional assimilation of altimetric data for ocean monitoring and prediction
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Thompson, J. D. Hurlburt, H. E. Kindle, J. C. |
| Copyright Year | 1984 |
| Description | Numerical experiments using simulated altimeter data were conducted in order to examine the assimilation of altimeter-derived sea surface heights into numerical ocean circulation models. A reduced-gravity, primitive equation circulation model of the Gulf of Mexico was utilized; the Gulf of Mexico was chosen because of its amenability to modeling and the ability of low vertical-mode models to reproduce the observed dynamical features of the Gulf circulation. The simulated data were obtained by flying an imaginary altimeter over the model ocean and sampling the model sea surface just as real altimeter would observe the true ocean. The data were used to initialize the numerical model and the subsequent forecast was compared to the true numerical solution. Results indicate that for a stationary, circular eddy, approximately three to four tracks (either ascending or descending) across the eddy are sufficient to ensure adequate spatial resolution. |
| File Size | 682101 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840019249 |
| Archival Resource Key | ark:/13960/t02z62n0p |
| Language | English |
| Publisher Date | 1984-05-01 |
| Access Restriction | Open |
| Subject Keyword | Oceanography Radio Altimeters Data Simulation Ocean Dynamics Ocean Surface Remote Sensing Optimization Gulf of Mexico Ocean Models Vortices Mathematical Models Spatial Resolution Synoptic Measurement Ocean Currents Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
