jOceans is a module of jLab.
latlon2uv   - Converts latitude and longitude to horizontal velocity.
uv2latlon   - Integrates horizontal velocity to give latitude and longitude.
trajextract - Extracts Lagrangian trajectory segments within given region.
trajunwrap  - Unwraps Lagrangian trajectories from a periodic domain.
trajwrap    - Wraps Lagrangian trajectories to fit within a periodic domain.
trajchunk   - Converts cell array data into chunks based on the Coriolis period.
periodize    - Returns a doubly periodic version of an input array.
inellipse    - Locates points on the interior of ellipses.
closedcurves - Locate and interpolate closed curves in a possibly periodic domain.
curvemoments - Centroid, area, and many other moments of a closed curve.
divgeom      - Geometric decomposition of eddy vorticity flux divergence.
hodograph  - Generate hodograph plots (simple and fancy).
provec     - Generate progressive vector diagrams (simple and fancy).
stickvect  - Plots "stick vectors" for multicomponent velocity time series.
trackextract  - Extracts alongtrack altimetry segments within given region.
ncinterp      - Interpolate field from NetCDF file onto specified positions.
jtopo.mat   - One-sixth degree global topography, from Smith and Sandwell + IBCAO.
topoplot    - Plot regional or global topography at one-sixth degree resolution.