scene LC80340432018066LGN00, March_7th_2018
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Data and Deglinting

TOA TCC: raw image
logarithmic enhancement

BOA TCC deglinted image
logarithmic enhancement
Glint regressions using SWIR1

R2 values are fairly high
15 m resampling
 does not increase noise
Special effect mask mSE
Location of Profile_RED
backdrop is a TCC of deglinted data


dLsw.shp shapefile is shown


 

Radiances along Profile_Red


Optical calibration for the whole image

Calibration for the whole image
except Bay of La Paz

for bands Blue, Green, Red and NIR

 

Calibration for the whole image
except Bay of La Paz

for bands Blue, Green, PAN, NIR
  • KBLUE/KGREEN~=0.8
    • Jerlov water type OII+0.6
This calibration suits
the whole image
except Bay of La Paz


Calibration diagram for Bay od La Paz
for bands Blue, Green, Red and NIR


Calibration diagram for Bay od La Paz
for bands Blue, Green, PAN, NIR



Ready for modeling

True Color Composite
of BOAWCC radiances scaled 0-250
this is early March
  • B=Coastal band        in channel 34
  • G=Green  band         in channel 35
  • R=Blue    band         in channel 36
 

Retrieved depth
backdrop of TOA TCC
see legend
Maximum BOAWCC reflectance (0-1)
for this scene -RM0.137/0.172/0.234/0.233/0.314/0.433/0.456
To convert BOAWCC radiances
into calibrated reflectances
CoastalRefectance=CoastalBOAWCC*0.137/250
BlueRefectance    =    BlueBOAWCC*0.172/250
GreenRefectance  =  GreenBOAWCC*0.234/250
Maximum shallow bottom reflectance (0-1)
for coral sands
-RM/0.310/0.380/0.440/0.550/0.560/0.670/0.700

Coral sand is approx twice brighter
than brightest sands in this scene.

Average bottom brightness
see legend for image B

 
15 m GSD, smart-smoothed
  • not_PANsharpened: sharpening becomes redundant/pointless, thanks to:
    • improved co-registration of the PANchromatic band with the MULTI bands (might still be improved further)
    • combined with 15 m resampling of MULTI bands to match the PANchro GSD
  • smart-smoothing then becomes desirable/necessary

 



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