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'srtmRead' Linux binary reads the global SRTM30+ bathymetry datafile which has to be downloaded from:

   ftp://topex.ucsd.edu/pub/srtm30_plus/topo30/topo30

and extracts bathymetry for the given region (with possible downsampling).

Usage:
  srtmRead -range lonmin lonmax latmin latmax [-resample n] [-fmt format]

	lonmin lonmax latmin latmax: should be in decimal degrees from 0...360 and -90...90
	n: take each n'th node, n = (2, 4, 8)
	format: output format label (default: DSBB)
	   supported formats:  DSAA DSBB ESRI XYZ GEBCO

Example:
	srtmRead -range 90 120 -10 20 -resample 4 -fmt ESRI
	output 2' grid will be stored in ESRI format