CoastWatch Master Tool Help: Geographic overlays

A number of geographic overlays are available to annotate the master view and help in defining the master projection and region parameters:

Coast geography
Land/water boundaries from the Global Self-consistent Hierarchical High-resolution Shorelines (GSHHS) database: http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html.
Grid lines
Latitude and longitude grid lines. Grid increments are determined automatically from the master region extents.
International borders
International political border lines from CIA WDB-II data.
State borders
National state border lines from CIA WDB-II data.

Use the Options menu shown above to select/deselect the desired geographic overlays. By default, only the coast geography and grid lines are selected.

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