# Documentation of read_topo82

Global Index (all files) (short | long) | Local Index (files in subdir) (short | long)

## Function Synopsis

    [latgrat,longrat,mat] = read_topo82(latlim,lonlim)

## Help text

     Purpose: read topo8.2.img global 2-minute (4 km) topography from
     satellite bathymetry. The data is available over the Internet via
     anonymous FTP from <ftp://topex.ucsd.edu/pub/global_topo_2min/>.

     Variables:
       - latlim: vector of limits in latitude: [south:-90 north:90]
       - lonlim: vector of limits in longitude: [east:0 west:360]
       - latgart: latitude vector of elevations
       - longart: longtitude vector of elevations
       - map: vector of levations

     Global variables: DATA_DIR

## Cross-Reference Information

| This function is called by
--- | ---
| m_plot_track

Pierre-Michel THEVENY <theveny@dt.insu.cnrs.fr>