Syntax_LE
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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
 
So
I keep digging
until suitable data
become available
 
 
  • -LE/Lext[1]/Lext[2]/Lext[3]/Lext[4]
  • -LE1/1000/1/2000/OptionalZoneName
    • Variable: Lext[1]=startX >=1
    • Variable: Lext[2]= endX <=nbRow
    • Variable: Lext[3]=startY >=1
    • Variable: Lext[4]= endY <=nbLin
    • Comment: Zone (optional free comment)