A 344*526 EO1-Hyperion 26-bands image of Bora Bora Island, French Polynesia (Sep 14th 2002)
Work done in 2010




 
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
 

Please refer to Stephane Maritorena,
"Remote sensing of water attenuation in coral reefs: a case study in French Polynesia":
IJRS, vol 17, no 1, pp 155-166, 1996


TCC

FCC


Calibration plot for B, G, R, and Nir bands
Optical calibration is straightforward

Jerlov water type OIB+0.6
ZM[blue]~=46 m, ZM[green]~=30 m



Computed depth

Average bottom brightness

Bottom typing: work in progress,
still a lot to be improved

Red pixels are unclassified yet
Pixel size of 30 m, and
Cubic convolution resampling
do not help!

Normalized botttom reflectance TCC

White polygons are the regions of interest
for computing the bottom type signatures
shown below

Bottom typing: zoom north
Breaking waves are not mapped yet

Bottom typing: zoom south
Breaking waves are not mapped yet
   
The following commandlines were obtained and optimized same day,
from raw 16U data in PCIDSK format tobottom typing

#nice -20  4SM.3.24 -Process/06_MAR_2010       -OriginUSGS                   
-DB/EO1H0550712002257110PW/63_1_26_0/26_65/344_526/629.505_8183.445/1_1               
-Mis/FrenchPolynesia/BoraBora/EO1/HYPERION/USGS/UTM_5_008/0.030_0.030/14_SEP_2002       
-MakePIX                                           
-import/data*EO1H0550712002257110PW/dbnc_0_1_0_0/R961_L3171/import_623.400_8234.700_0                                               
-LS00500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0       
-Lsw/058.2/053.1/048.4/044.7/040.7/036.0/032.2/027.7/025.2/022.8/021.4/019.2/017.8/016.3/015.3/014.6/012.8/012.6/011.6/011.1/010.5/010.5/009.8/009.7/009.5/003.2_new               
-La/0044.3/039.8/036.0/032.6/030.0/027.3/025.3/027.7/025.2/022.8/021.4/019.2/017.8/016.3/015.3/014.6/012.8/012.6/011.6/011.1/010.5/010.5/009.8/009.7/009.5/003.2_new               
-LsM/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0/200.0_new               
-Lm/0001.0/001.0/001.0/001.0/001.0/001.0/001.0/001.0/001.0/001.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0           
-SCL/00970/01041/01106/01210/01163/01196/01240/01188/01253/01277/01295/01317/01288/01277/01284/01239/01288/01247/01214/01219/01211/01120/01155/01117/01018/01010_new     
-extract/v/NIRband26/NIRmax1000 /mBPL2/mSOIL21 /Ext_3000_6800_2300_5800       
-AutoCAL/print_20_25/mapBPL/MakeNewMask/GetGlint/GlintM14.0/clouds        
-smooth/1/D/Smart+                                
@-DN184/1187/5Bright @-DN321/567Deep                       


#exit


#Following is the full CommandLine=====mBPL=2==================================
#/home3/ymorel/4SM/compile.sh
nice -20  4SM.3.24 -Process/6_MAR_2010    -OriginUSGS           
-dB/EO1H0550712002257110PW/63_1_26_0/26_65/344_526/629.505_8183.445/1_1       
-Mis/FrenchPolynesia/BoraBora/EO1/HYPERION/USGS/UTM_5_008/0.030_0.030/14_SEP_2002       
@-URL/file:///home/ymorel/RSPwebsite/website/                   
-makePIX/FILE/0/Z20                               
-LS/0500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0/500.0       
@WLM/452.2/462.3/472.5/482.7/492.9/503.0/513.2/523.4/533.6/543.7/553.9/564.1/574.3/584.5/594.6/604.8/615.0/625.2/635.3/645.5/655.7/665.8/676.0/686.2/696.4/849.0       
@WLm/442.2/452.3/462.5/472.7/482.9/493.0/503.2/513.4/523.6/533.7/543.9/554.1/564.3/574.5/584.6/594.8/605.0/615.2/625.3/635.5/645.7/655.8/666.0/676.2/686.4/839.0       
@cWL/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.300/0.010/0.100/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500/0.500       
-M/0000001/@0002/@0003/@0004/@0005/@0006/@0007/@0008/@0009/@0010/00011/00012/00013/00014/00015/00016/00017/00018/00019/00020/00021/00022/00023/00024/00025/00026 
@CP/0151.5/151.7/151.9/151.0/146.6/142.2/137.5/132.9/127.9/121.7/115.9/107.3/099.1/086.0/065.0/044.0/032.4/027.7/023.9/021.0/018.6/016.8/015.1/013.1/011.4/003.2_4.00m   
@CP/0151.5/151.7/151.9/151.0/146.6/142.2/137.5/132.9/127.9/121.7/115.9/107.3/099.1/086.0/065.0/044.0/032.4/027.7/023.9/021.0/028.6/016.8/015.1/013.1/011.4/003.2_4.00m   
-M/0000001/@0002/@0003/@0004/@0005/@0006/@0007/@0008/@0009/@0010/00011/00012/00013/00014/00015/00016/00017/00018/00019/00020/00021/00022/00023/00024/00025/00026  
-M/0000001/@0002/@0003/@0004/@0005/@0006/@0007/@0008/00009/00010/00011/00012/00013/00014/00015/00016/00017/00018/00019/00020/00021/00022/00023/00024/00025/00026   
-Lsw/056.4/051.4/047.4/043.5/039.2/035.1/031.0/027.3/024.7/022.3/020.5/018.5/017.0/015.7/014.6/013.8/012.5/011.9/011.2/010.6/010.1/009.8/009.4/009.1/008.9/003.2_new               
-La/0044.3/039.8/036.0/032.6/030.0/027.3/027.0/023.8/021.7/019.4/018.5/016.7/015.4/014.3/013.4/012.8/011.7/011.3/010.8/010.4/010.1/009.8/009.4/009.1/008.9/003.2_new               
-LsM/168.6/167.7/166.8/166.2/165.7/165.2/165.1/164.5/164.0/163.6/163.3/163.0/162.7/162.6/162.3/162.2/162.0/162.0/161.8/161.7/161.6/161.6/161.5/161.5/161.5/160.2_CoefLM=1.05   
-Lm/0001.0/001.0/001.0/001.0/001.0/001.0/001.0/001.0/001.0/001.0/001.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/002.0/255.0           
-SCL/00970/01041/01106/01210/01163/01196/01240/01188/01253/01277/01295/01317/01288/01277/01284/01239/01288/01247/01214/01219/01211/01120/01155/01117/01018/01010_new    
-KK04_11_0.6404/Knir4.500/Bm400_BG512_GR625_RN700                   
-KK04_11_0.5950/Knir4.500/Bm400_BG512_GR625_RN700                   
-KK04_11_0.6150/Knir4.500/Bm400_BG512_GR625_RN700                   
-KK04_11_0.6350/Knir4.500/Bm400_BG512_GR625_RN700                   
@KK11_21_0.2714/Knir4.500/Bm400_BG512_GR625_RN700                   
-Z/MSL0.00/zplus/cSL1.18/ZMax0.00/cdZ1.00/PAN_1_26/sIG_0w0/n_0/cZ1.000           
-B/tclNe5.00/LBref200_100/Bmin0/cLM1.0                       
-deglint/vRba/DegTol1.00/F1/L26/GlintM8/FN/mDEGLINT1                   
-extract/v/NIRband26/NIRmax1000.0 /mBPL2/mSOIL21/Ext_1_344_1_526           
-calibrate/v/BdSNpz/BC_26_21_11_4/BDh_12_13_34                       
-Model/mask_2    @-Tc4/11                               
-Smooth/5/d/Smart-                                   
-Classify/typer33_0.2/Classifier_0.5_0f/mode_5_11_16                   
-dCAL/A/4_21/38    @-E1/344/1/526 @-E1/344/1/526    @-DD143/95