Specify various executables

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1 - NO NEED for field data, nor for atmospheric correction
2 - this is demonstrated in this website, using a variety of hyper/multi spectral data
Requirements are
1 - homogeneous water body and atmosphere
2 - some coverage of optically deep water
3 - some coverage of dry land
Problems are
1 - the precision on estimated depth is found wanting, because the noise-equivalent change in radiance  of accessible data is too high for shallow water column correction work 
2 - radiance data should be preprocessed by the provider at level 1 in order to improve S/N ratio
3 - exponential decay: the deeper/darker the bottom, the poorer the performances
I keep digging
until suitable data
become available
  • by default in 4SM
    • the texteditor
    • the viewer for a PostScript file.eps
    • the browser
  • any of these may be overridden by your favorite tool, using the -Call... commandline argument
    • -Call/epsviewer_evince
    • -Call/epsviewer_evince/browser_firefox/texteditor_ed
    • -Call/texteditor_ed/epsviewer_evince/browser_firefox
    • -Call/texteditor_ed