-WL... argument Wavelengths must be adjusted carefully, as they are key to Jerlov's water types. For SPOT images, we have established that WL[XS1]=550, WL[XS2]=650 and WL[XS3]=850 nm are convenient. these wavelengths are imbedded in 4SM for SPOT images: they need not to appear in the commandline. |
-LsM... -LsM/199.5/179.8/166.8_AutoCAL - LsM is the spectral radiance
- at the intersection of the Brightest Pixels Line with the Soil Line.
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-Lsw... -Lsw/026.6/013.6/006.5_AutoCAL |
-dLsw... -dLsw001.0/00.6/00.0 - provides an adjustment to Lsw values: Lsw=Lsw+dlsw
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-Lw... -Lw/0001.5/000.0/000.0_AutoCAL |
-CP... -CP/160.50/102.06/014.11_0.75m a spectral calibration pixel. - If a -CP argument is needed, it may be chosen from the calibration screen display
- This -CP... initial spectral value
- is then progressively adjusted manually, along with the -LsM spectral value,
- so as to obtain a good fit of the BPL model onto the observed BPL pixel.
- In the end, the BPL model
- shall be the straight line after linearization of the data
- this staright line runs through the calibration pixel and the LsM point ,
- and its slope is the ratio Kgreen/Kred.
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-KK.... -KK1_2_0.29/Knir4.500/mask_3 states that |
-Z.... -Z/MSL0.00/n_0/mask_3 - specifies some parameters for the computation of depth for each BPL pixel.
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-B..... -B/tclNe/Bmin0/cLM1.00 - specifies conditions relative to brightness of pixels.
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-deglint... -deglint/vRbaD/GlintM25.0 - because the data is affected by sky/sun glint, this argument specifies conditions for deglinting.
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-extract... -extract/v/mBPL4/mask_3 - provides details of conditions applied upon extraction of the calibration data textfile.
- this argument is mandatoty for the calibration process
- ?may only be disabled with a lowercase -extract
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- NOTE: the -deglin/t..... and -extract/.... arguments
- may/should be available
- for the -Calibrate... process: do not disable them
- NOTE: if the calibration data file is not available,
- 4SM shall first extract the calibration data before proceeding to the calibration process
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