bahrain-wv2-2

Calibration and results

Calibration diagram for whole image	OIII water type of Jerlov Wavelengths are at mid-waveband see that this raises some questions WL[green] would need to be increased WL[red] would need to be decreased
Calibration for the harbour This calibration applies to the industrialized harbour in the southern part of the image (Port of Sitrah), where bottoms are much darker (waters might be slightly less clear though) Maximum computed depth is ~9 m over bright bottom, much less over dark bottom Weird: depths around Bahrain do not exceed 10-12m it is weird that there does not seem to be any bottom detection beyond ~9 m green band should exhibit bottom detection down to ~18 m over bright bottoms blue band should exhibit bottom detection down to ~20 m over bright bottoms this may indicate that bottoms are fairly dark in the offshore areas	Seatruth data is needed in order to clarify that particular point Final Z= CoefZ*Computed Z + TideHeight where TideHeight and CoefZ may only be obtained using seatruth data
computed depth Z in dm computed depth Z in cm zoom Turbid offshore waters yield fancy results, mostly inside the red polygon Final Z= CoefZ*Computed Z + TideHeight where TideHeight and CoefZ may only be obtained using seatruth data	average bottom reflectance B artificial bottoms appear very bright artifact bottoms, mostly under the red polygon above, are rendered very bright: milky turbidity mimics bright bottoms natural bottoms are mostly dark, even very dark in the Port of Sitrah
TCC of normalized water column corrected bottom reflectances	TCC of water column corrected bottom reflectances A "low-tide" view of the scene
nice -20 4SM.4.02 -Process/producer/29_Jan_2011 -OriginNPA -DB/bahrainM/44_1_7_0/7_46/9318_8807/454.409_2913.873/1_1 -Mis/Bahrain/mosaic/WV02/Multi/TIF/UTM_39_008/0.002_0.002/10_DEC_2010 -LS/0255.0/255.0/255.0/255.0/255.0/255.0/255.0 -WLM/453.0/508.0/581.0/627.0/689.0/744.0/890.0 -WLm/401.0/447.0/511.0/588.0/629.0/704.0/772.0 -cWL/0.500/0.500/0.500/0.500/0.500/0.500/0.500 @CP/0180.9/174.1/155.7/089.6/060.7/030.0/011.9 -CP/0153.8/142.2/110.6/052.8/033.0/022.5/011.1_4.00m -Lsw/123.50/96.73/62.93/33.05/24.53/21.82/11.88 -dLsw-00.0/-00.0/0-1.5/002.5/01.00/00.00/00000 -Lw/0006.3/012.1/001.0/000.5/000.0/000.0/000.0_1.1 -LsM/233.9/239.1/253.6/248.5/250.9/299.1/244.5 -SCL/00066/00095/00145/00132/00092/00112/00103 -Lm/0001.0/001.0/001.0/000.5/005.0/008.0/255.0 -M/@000001/@0002/@00003/00004/0005/00006/00007 -KK2_5_0.3045/Knir4.500/Bm400_BG520_GR620_RN750 -KK2_4_0.4500/Knir4.500/Bm400_BG520_GR620_RN750 @KK2_3_0.8000/Knir4.500/Bm400_BG520_GR620_RN750 -Z/MSL0.00/zplus/cSL1.18/ZMax0.00/cdZ1.00/PAN_1_7/sIG_0w0/N_2/cZ1.000 -B/tclNe5.00/LBref200_100/Bmin0/cLM1 -deglint/vRbaD/DegTol1.00/F5/L7/GlintM25.0/FN/mDEGLINT1 -extract/v/RawBDH/NIRband7/NIRmax255.0/mBPL2/mSOIL21/FullBDH -Calibrate/v/BdSNpZg/BC_5_4_3_1/BDh_12_13_14 -Model/mask_2 -Smooth/5/D/Smart+ This has been a blind test of 4SM No seatruth data was used Feb 6th 2011	image WZ Green: modeled using bands 1 to 6 Yellow: modeled using bands 1 to 5 Pink: modeled using bands 1 to 4 Because Kblue/Kgreen is so close to 1 in this OIII water type, it is impossible to keep computing depth using bands 1 to 3 (this would require clearer waters)