• This improves markedly on results obtained so far

  • Is it because red band 5 was used here?

  • Or is it because Ron's pre-deglinted image is used here?

ZZRegressor
on image waimanalowv2m_deg at Oahu, Hawaii
Statistics of seatruth ZC-ZR
N=5.609 millions pixels by Morel's 4SM method
stepDTM=1 Smooth=1_5 Using_bands_1_2_3_4_5

 1.51% pixels with depth underestimated by more than 5.0 m
 6.04% pixels with depth underestimated by more than 2.5 m
 7.63% pixels with depth underestimated by more than 1.5 m
17.46% pixels with depth underestimated by more than 0.5 m
17.79% pixels with depth underestimated by more than 0.0 m
18.47% pixels with depth  overestimated by less than 0.5 m
19.34% pixels with depth  overestimated by less than 1.5 m
 7.44% pixels with depth  overestimated by less than 2.5 m
 3.77% pixels with depth  overestimated by less than 5.0 m

36.27% of computed depths are within  +-0.5 m of DTM depth
73.06% of computed depths are within  +-1.5 m of DTM depth
88.14% of computed depths are within  +-2.5 m of DTM depth
97.94% of computed depths are within  +-5.0 m of DTM depth
over a total of 100.00% of computed depths

• We get the answer: the improvement from 82% to 89% of all estimated depths within +-2.5 m of SHOALS depths was gained thanks to Ron's pre-deglinting

• Still, there is room for further improvement over non-polluted areas, by further tweaking the red and yellow bands

ZZRegressor
on image waimanalowv2m_deg at Oahu, Hawaii
Statistics of seatruth ZC-ZR
N=5.609 millions pixels by Morel's 4SM method
stepDTM=1 Smooth=1_5 Using_bands_1_2_3_4

 1.24% pixels with depth underestimated by more than 5.0 m
 5.24% pixels with depth underestimated by more than 2.5 m
 7.22% pixels with depth underestimated by more than 1.5 m
12.95% pixels with depth underestimated by more than 0.5 m
14.65% pixels with depth underestimated by more than 0.0 m
21.43% pixels with depth  overestimated by less than 0.5 m
25.42% pixels with depth  overestimated by less than 1.5 m
 7.54% pixels with depth  overestimated by less than 2.5 m
 3.77% pixels with depth  overestimated by less than 5.0 m

36.08% of computed depths are within  +-0.5 m of DTM depth
74.45% of computed depths are within  +-1.5 m of DTM depth
89.21% of computed depths are within  +-2.5 m of DTM depth
98.22% of computed depths are within  +-5.0 m of DTM depth
over a total of 100.00% of computed depths

ZZRegressor
on image waimanalowv2m_deg at Oahu, Hawaii
Statistics of seatruth ZC-ZR
N=5.609 millions pixels by Morel's 4SM method
stepDTM=1 Smooth=1_5 Using_bands_1_2_3

 1.15% pixels with depth underestimated by more than 5.0 m
 5.97% pixels with depth underestimated by more than 2.5 m
12.34% pixels with depth underestimated by more than 1.5 m
20.33% pixels with depth underestimated by more than 0.5 m
12.86% pixels with depth underestimated by more than 0.0 m
12.36% pixels with depth  overestimated by less than 0.5 m
20.81% pixels with depth  overestimated by less than 1.5 m
 9.15% pixels with depth  overestimated by less than 2.5 m
 4.47% pixels with depth  overestimated by less than 5.0 m

25.22% of computed depths are within  +-0.5 m of DTM depth
66.36% of computed depths are within  +-1.5 m of DTM depth
87.85% of computed depths are within  +-2.5 m of DTM depth
98.30% of computed depths are within  +-5.0 m of DTM depth
over a total of 100.00% of computed depths

bands 1, 2 ,3 and 4