| l2gen | |
Creates a Level 2 file from an input Level 1 (A or B) file.
SeaDAS-Toolobox -> SeaDAS Processors -> l2gen
For the command line version of help run l2gen -help
The l2gen GUI is dynamically created based on the selected IFILE. Once the IFILE is specified, l2gen is run in the background in a special mode in order to obtain and populate all the parameters and defaults for l2gen GUI. This means that if a new version of l2gen comes out, with new parameters, defaults, etc., your current version of SeaDAS will automatically support these parameters. Note that because of this l2gen dependency on the building of the GUI, SeaDAS 7 requires l2gen version 6.5.7 or later.
All l2gen parameters are contained within a series of categorized tabs:
Non-Defaults Selected Indicator (*)
When a parameter is chosen to be
a non-default value, that parameter will show up in the parfile textarea of the MAIN tab.
As an aid to help direct
the user to tabs containing at least one parameter set to a non-default value, an asterix
(*) will appear at the top
of the tab. Also within the tab, an asterix will appear next to each parameter which is a
non-default value.
THE MAIN TAB |
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Selecting the IFILE Once this IFILE has been specified, the mission and data level are obtained from this file. If the IFILE data level matches the expected input data level of l2gen, the GUI will then use this file to run l2gen in the background in order to obtain and populate all the parameters and defaults of l2gen GUI. One thing very important to note is that since this GUI is built from the IFILE, a subsequent selection of a different IFILE will cause the GUI to be rebuilt with all the fields set to the defaults. If you have parameters already specified and wish to save these, then the best route would be to save them in a parfile, select a new IFILE, then reload the parfile. An alternate way to try to keep your currently selected parameters, is to type the ifile name into the parfile textarea in the GUI.
Selecting the OFILE and the GEOFILE
Get Ancillary Files
Show Defaults
Suite
Parfile Textarea It's useful to note that when you are editing text in the parfile textarea you can click "Apply". This will cause the text to update all the GUI parameters. The parfile textarea will automatically be reformatted in a consistent way, so be aware that the order of your hand-entered parameters may change due to this. Clicking on another field or another tab will also have the same effect as clicking the "Apply" button. To reset all parameters within a given tab to the default, click the button at the bottom of the panel. To reset all parameters within all tabs, no button as of yet exists but you can simply delete the entire parfile textarea in the main tab, and this will restore everything to default. |
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THE PRODUCTS TAB |
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The l2gen product parameter L2PROD is initially set to the default value. At any time L2PROD can be restored to the default value by clicking 'Restore Defaults' at the bottom of this tab. L2PROD can be specified in a multitude of ways. Note that a change within any of one these product specifier controls will automatically update the others.
Product Selector
Wavelength Limiter Note that a change in the 'Wavelength Limiter' will not directly change the products selected, but only effects the behaviour of the 'Product Selector'. Also note that the Wavelength Limitor tool is expected to contain a list of wavelengths regardless of the mission selected. The wavelengths do vary depending on mission. If this tool does not contain any wavelengths then there is likely a problem and could perhaps be a bad IFILE.
Selected Products Textarea |
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THE PROCESSING OPTIONS TAB |
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THE SUBSETTING OPTIONS TAB |
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This contains 2 sets of mutually exclusive options: pixels (spixl, epixl, dpixl, sline, eline, dline) and coordinates (north, south, east, west). This GUI will not permit selection of both sets, resetting the prior selection to the default. (i.e. If you set pixel field to a non-default value and then subsequently set a coordinate field to a non-default value, the latest selection (the coordinate field) will take precedent and the previously set field (the pixel field) will be automatically reset to the default. |
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THE THRESHOLDS TAB |
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THE ANCILLARY INPUTS TAB |
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THE IOP OPTIONS TAB |
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THE MISCELLANEOUS TAB |
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THE CALIBRATION OPTIONS TAB |
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l2gen 9.8.0-V2024.8 (Nov 14 2024 12:14:51)
Usage: l2gen argument-list
The argument-list is a set of keyword=value pairs. The arguments can
be specified on the commandline, or put into a parameter file, or the
two methods can be used together, with commandline over-riding.
return value: 0=OK, 1=error, 110=north,south,east,west does not intersect
file data.
The list of valid keywords follows:
help (boolean) (alias=h) (default=false) = print usage information
version (boolean) (default=false) = print the version
information
dump_options (boolean) (default=false) = print
information about each option
dump_options_paramfile (ofile) = print
information about each option to paramfile
dump_options_xmlfile (ofile) = print
information about each option to XML file
par (ifile) = input parameter file
pversion (string) (default=Unspecified) = processing version string
suite (string) (default=OC) = product suite string for loading
suite-specific defaults
eval (int) (default=0) = evaluation bitmask
0: standard processing
1: init to old aerosol models
2: enables MODIS and MERIS cloud Mask for HABS
16: enables MODIS cirrus mask
32: use test sensor info file
64: use test rayleigh tables
128: use test aerosol tables
256: use test polarization tables
1024: mask modis mirror-side 1 (navfail)
2048: mask modis mirror-side 2 (navfail)
4096: don't apply 'cold-only' or equatorial aerosol tests for SST
8192: use alt sensor info file in eval
32768: enables spherical path geom for dtran
ifile (ifile) (alias=ifile1) = input L1 file name
ilist (ifile) = file containing list of input files, one per line
geofile (ifile) = input L1 geolocation file name (MODIS/VIIRS only)
ofile (ofile) (alias=ofile1) (default=output) = output file #1 name,
output vicarious L1B for inverse mode
ofile[#] = additional output L2 file name
oformat (string) (default=netCDF4) = output file format
netcdf4: output a netCDF version 4 file
hdf4: output a HDF version 4 file
il2file (ifile) (alias=il2file1) = input L2 file names for sensor to be
used as a calibrator. Alternatively, a data point can be used as a
calibrator (e.g. MOBY)
il2file[#] = additional L2 calibration file names
tgtfile (ifile) = vicarious calibration target file
aerfile (ifile) = aerosol model specification file
metafile (ifile) = output meta-data file
l2prod (string) (alias=l2prod1) = L2 products to be included in ofile #1
l2prod[#] = L2 products to be included in ofile[#]
proc_ocean (int) (default=1) = toggle ocean processing
1: On
0: Off
2: force all pixels to be processed as ocean
proc_land (boolean) (default=off) = toggle land processing
proc_sst (boolean) (default=false) = toggle SST processing
(default=1 for MODIS, 0 otherwise)
proc_cloud (boolean) (default=off) = toggle cloud processing
proc_uncertainty (int) (default=0) = uncertainty propagation mode
0: without uncertainty propagation
1: uncertainty propagation generating error variance 2: uncertainty propagation generating full covariance matrix
atmocor (boolean) (default=on) = toggle atmospheric correction
mode (int) (default=0) = processing mode
0: forward processing
1: inverse (calibration) mode, targeting to nLw=0
2: inverse (calibration) mode, given nLw target
3: inverse (calibration) mode, given Lw target (internally normalized)
aer_opt (int) (default=99) = aerosol mode option
-99: No aerosol subtraction
>0: Multi-scattering with fixed model (provide model number, 1-N,
relative to aermodels list)
0: White aerosol extrapolation.
-1: Multi-scattering with 2-band model selection
-2: Multi-scattering with 2-band, RH-based model selection and
iterative NIR correction
-3: Multi-scattering with 2-band model selection
and iterative NIR correction
-4: Multi-scattering with fixed model pair
(requires aermodmin, aermodmax, aermodrat specification)
-5: Multi-scattering with fixed model pair
and iterative NIR correction
(requires aermodmin, aermodmax, aermodrat specification)
-6: Multi-scattering with fixed angstrom
(requires aer_angstrom specification)
-7: Multi-scattering with fixed angstrom
and iterative NIR correction
(requires aer_angstrom specification)
-8: Multi-scattering with fixed aerosol optical thickness
(requires taua specification)
-9: Multi-scattering with 2-band model selection using Wang et al. 2009
to switch between SWIR and NIR. (MODIS only, requires aer_swir_short,
aer_swir_long, aer_wave_short, aer_wave_long)
-10: Multi-scattering with MUMM correction
and MUMM NIR calculation
-17: Multi-scattering epsilon, RH-based model selection
and iterative NIR correction
-18: Spectral Matching of aerosols reflectance
and iterative NIR correction
-19: Multi-scattering epsilon (linear), RH-based model selection
and iterative NIR correction
aer_wave_short (int) (default=765) = shortest sensor wavelength for aerosol
model selection
aer_wave_long (int) (default=865) = longest sensor wavelength for aerosol
model selection
aer_wave_base (int) (default=865) = base sensor wavelength for aerosol
extrapolation
aer_swir_short (int) (default=-1) = shortest sensor wavelength for
SWIR-based NIR Lw correction
aer_swir_long (int) (default=-1) = longest sensor wavelength for SWIR-based
NIR Lw correction
aer_rrs_short (float) (default=-1.0) = Rrs at shortest sensor wavelength for
aerosol model selection
aer_rrs_long (float) (default=-1.0) = Rrs at longest sensor wavelength for
aerosol model selection
aermodmin (int) (default=-1) = lower-bounding model to use for fixed model
pair aerosol option
aermodmax (int) (default=-1) = upper-bounding model to use for fixed model
pair aerosol option
aermodrat (float) (default=0.0) = ratio to use for fixed model pair aerosol
option
aer_angstrom (float) (default=-999.0) = aerosol angstrom exponent for model
selection
aer_iter_max (int) (default=10) = maximum number of iterations for NIR
water-leaving radiance estimation.
mumm_alpha (float) (default=1.72) = water-leaving reflectance ratio for MUMM
turbid water atmospheric correction
mumm_gamma (float) (default=1.0) = two-way Rayleigh-aerosol transmittance
ratio for MUMM turbid water atmospheric correction
mumm_epsilon (float) (default=1.0) = aerosol reflectance ratio for MUMM
turbid water atmospheric correction
absaer_opt (int) (default=0) = absorbing aerosol flagging option
0: disabled
1: use rhow_412 aerosol index test
2: GMAO ancillary aerosol test
glint_opt (int) (default=1) = glint correction:
0: glint correction off
1: standard glint correction
2: simple glint correction
oxaband_opt (int) (default=0) = oxygen A-band correction
0: no correction
1: Apply Ding and Gordon (1995) correction
2: Apply oxygen transmittance from gas transmittance table (see gas_opt)
cirrus_opt (boolean) (default=false) = cirrus cloud reflectance correction option
filter_opt (boolean) (default=false) = filtering input data option
filter_file (ifile) (default=$OCDATAROOT/sensor/sensor_filter.dat) =
data file for input filtering
brdf_opt (int) (default=0) = Bidirectional reflectance correction
0: no correction
1: Fresnel reflection/refraction correction for sensor path
3: Fresnel reflection/refraction correction for sensor + solar path
7: Morel f/Q + Fresnel solar + Fresnel sensor
15: Gordon DT + Morel f/Q + Fresnel solar + Fresnel sensor
19: Morel Q + Fresnel solar + Fresnel sensor
fqfile (ifile) (default=$OCDATAROOT/common/morel_fq.nc) = f/Q correction file
parfile (ifile) = par climatology file for NPP calculation
gas_opt (int) (default=1) = gaseous transmittance bitmask selector
0: no correction
1: Ozone
2: CO2
4: NO2
8: H2O
16: Use ATREM
32: Use <sensor>_gas_transmittance.nc tables
64: CO
128: CH4
256: N2O
gas_transmittance_file (ifile) = gaseous transmittance file
atrem_opt (int) (default=0) = ATREM gaseous transmittance bitmask selector
0: H2O only
1: Ozone
2: CO2
4: NO2
8: CO
16: CH4
32: O2
64: N2O
atrem_full (int) (default=0) = ATREM gaseous transmittance calculation option
0: Calculate transmittance using k-distribution method (fast)
1: Calculate transmittance using full method (slow)
atrem_geom (int) (default=0) = ATREM gaseous transmittance geometry option
0: Only recalculate geometry when error threshold reached (fast)
1: Recalculate geometry every pixel (slow)
atrem_model (int) (default=0) = ATREM gaseous transmittance Atm. model selection
0: Use pixel's latitude and date to determine model
1: tropical
2: mid latitude summer
3: mid latitude winter
4: subarctic summer
5: subarctic winter
6: US standard 1962
atrem_splitpaths (int) (default=0) = ATREM gaseous transmittance split paths between solar and sensor (turns atrem_full on)
0: Calculates transmittance over total path length (default)
1: Calculates transmittance over separate solar and sensor paths (slow)
iop_opt (int) (default=0) = IOP model for use in downstream products
0: None (products requiring a or bb will fail)
1: Carder
2: GSM
3: QAA
4: PML
5: NIWA
6: LAS
7: GIOP
cphyt_opt (int) (default=1) = model for phytoplankton carbon
1: Graff/Westberry
2: Behrenfeld
seawater_opt (int) (default=0) = seawater IOP options
0: static values
1: temperature & salinity-dependent seawater nw, aw, bbw
polfile (ifile) = polarization sensitivities filename leader
pol_opt (int) (default=-1) = polarization correction (sensor-specific)
0: no correction
1: only Rayleigh component is polarized
2: all radiance polarized like Rayleigh
3: only Rayleigh and Glint are polarized (MODIS default)
4: all radiance polarized like Rayleigh + Glint
band_shift_opt (int) (default=0) = bandshifting option
1: apply bio-optical bandshift
0: linear interpolation
giop_aph_opt (int) (default=2) = GIOP model aph function type
0: tabulated (supplied via giop_aph_file)
2: Bricaud et al. 1995 (chlorophyll supplied via default empirical algorithm)
3: Ciotti and Bricaud 2006 (size fraction supplied via giop_aph_s)
giop_aph_file (ifile) (default=$OCDATAROOT/common/aph_default.txt) =
GIOP model, tabulated aph spectra
giop_uaph_file (ifile) (default=$OCDATAROOT/common/aph_unc_default.txt) =
GIOP model, tabulated aph uncertainty spectra
giop_aph_s (float) (default=-1000.0) = GIOP model, spectral parameter
for aph
giop_adg_opt (int) (default=1) = GIOP model adg function type
0: tabulated (supplied via giop_adg_file)
1: exponential with exponent supplied via giop_adg_s)
2: exponential with exponent derived via Lee et al. (2002)
3: exponential with exponent derived via OBPG method
giop_adg_file (string) (default=$OCDATAROOT/common/adg_default.txt) =
GIOP model, tabulated adg spectra
giop_uadg_file (ifile) (default=$OCDATAROOT/common/adg_unc_default.txt) =
GIOP model, tabulated adg uncertainty spectra
giop_adg_s (float) (default=0.018) = GIOP model, spectral parameter
for adg
giop_uadg_s (float) (default=0.0) = GIOP model, uncertainty of spectral
parameter for adg
giop_bbp_opt (int) (default=3) = GIOP model bbp function type
0: tabulated (supplied via giop_bbp_file)
1: power-law with exponent supplied via giop_bbp_s)
2: power-law with exponent derived via Hoge & Lyon (1996)
3: power-law with exponent derived via Lee et al. (2002)
5: power-law with exponent derived via Ciotti et al. (1999)
6: power-law with exponent derived via Morel & Maritorena (2001)
7: power-law with exponent derived via Loisel & Stramski (2000)
8: spectrally independent vector derived via Loisel & Stramski (2000)
9: fixed vector derived via Loisel & Stramski (2000)
10: fixed vector derived via lee et al. (2002)
11: fixed vector derived via McKinna et al. (2021)
12: fixed vector derived via Huot et al. (2008)
giop_bbp_file (ifile) (default=$OCDATAROOT/common/bbp_default.txt) =
GIOP model, tabulated bbp spectra
giop_ubbp_file (ifile) (default=$OCDATAROOT/common/bbp_default.txt) =
GIOP model, tabulated bbp uncertainty spectra
giop_bbp_s (float) (default=-1000.0) = GIOP model, spectral parameter
for bbp
giop_ubbp_s (float) (default=0.0) = GIOP model, uncertainty in spectral
parameter for bbp
giop_acdom_opt (int) (default=1) = GIOP model acdom function type
0: tabulated (supplied via giop_acdom_file)
1: no data
giop_acdom_file (ifile) =
GIOP model, file of specific CDOM absorption coefficients for aLMI
giop_uacdom_file (ifile) =
GIOP model, file of specific CDOM absorption uncertainties for aLMI
giop_anap_opt (int) (default=1) = GIOP model anap function type
0: tabulated (supplied via giop_anap_file)
1: no data
giop_anap_file (ifile) =
GIOP model, file of specific NAP absorption coefficients for aLMI
giop_uanap_file (ifile) =
GIOP model, file of specific NAP absorption coefficient uncertainties for aLMI
giop_bbph_opt (int) (default=1) = GIOP model bbph function type
0: tabulated (supplied via giop_bbph_file)
1: no data
giop_bbph_file (ifile) =
GIOP model, file of specific phytoplankton backscattering coefficients for aLMI
giop_ubbph_file (ifile) =
GIOP model, file of specific phytoplankton backscatteirng coefficient uncertainties for aLMI
giop_bbnap_opt (int) (default=1) = GIOP model bbnap function type
0: tabulated (supplied via giop_bbnap_file)
1: no data
giop_bbnap_file (ifile) =
GIOP model, file of specific NAP backscattering coefficients for aLMI
giop_ubbnap_file (ifile) =
GIOP model, file of specific NAP backscattering coefficient uncertainties for aLMI
giop_rrs_opt (int) (default=0) = GIOP model Rrs to bb/(a+bb) method
0: Gordon quadratic (specified with giop_grd)
1: Morel f/Q
giop_rrs_unc_opt (int) (default=0) = GIOP model Rrs uncertainties option
0: none
1: sensor-derived Rrs uncertainties
2: input spectral absolute uncertainties using giop_rrs_unc, as comma-separated
array with spectral resolution matching sensor
3: input spectral relative uncertainties using giop_rrs_unc, as comma-separated
array with spectral resolution matching sensor
giop_rrs_diff (float) (default=0.33) = GIOP model, maximum difference between input and modeled Rrs
giop_grd (float) (default=[0.0949,0.0794]) = GIOP model, Gordon
Rrs to bb/(a+bb) quadratic coefficients
giop_wave (float) (default=-1) = GIOP model list of sensor wavelengths for
optimization comma-separated list, default is all visible bands (400-700nm)
giop_maxiter (int) (default=50) = GIOP Model iteration limit
giop_fit_opt (int) (default=1) = GIOP model optimization method
0: Amoeba optimization
1: Levenberg-Marquardt optimization
3: SVD matrix inversion
4: SIOP adaptive matrix inversion
gsm_opt (int) (default=0) = GSM model options
0: default coefficients
1: Chesapeake regional coefficients
gsm_fit (int) (default=0) = GSM fit algorithm
0: Amoeba
1: Levenberg-Marquardt
gsm_adg_s (float) (default=0.02061) = GSM IOP model, spectral slope for adg
gsm_bbp_s (float) (default=1.03373) = GSM IOP model, spectral slope for bbp
gsm_aphw (float) (default=[412.0, 443.0, 490.0, 510.0, 555.0, 670.0]) =
GSM IOP model, wavelengths of ap* table
gsm_aphs (float) (default=[0.00665, 0.05582, 0.02055, 0.01910, 0.01015, 0.01424]) = GSM IOP model, coefficients of ap* table
qaa_adg_s (float) (alias=qaa_S) (default=0.015) = QAA IOP model, spectral
slope for adg
qaa_wave (int) = sensor wavelengths for QAA algorithm
chloc2_wave (int) (default=[-1,-1]) = sensor wavelengths for OC2 chlorophyll
algorithm
chloc2_coef (float) (default=[0.0,0.0,0.0,0.0,0.0]) = coefficients for OC2
chlorophyll algorithm
chloc3_wave (int) (default=[-1,-1,-1]) = sensor wavelengths for OC3
chlorophyll algorithm
chloc3_coef (float) (default=[0.0,0.0,0.0,0.0,0.0]) = coefficients for OC3
chlorophyll algorithm
chloc4_wave (int) (default=[-1,-1,-1,-1]) = sensor wavelengths for OC4
chlorophyll algorithm
chloc4_coef (float) (default=[0.0,0.0,0.0,0.0,0.0]) = coefficients for OC4
chlorophyll algorithm
kd2_wave (int) (default=[-1,-1]) = sensor wavelengths for polynomial Kd(490)
algorithm
kd2_coef (float) (default=[0.0,0.0,0.0,0.0,0.0,0.0]) = sensor wavelengths
for polynomial Kd(490) algorithm
flh_offset (float) (default=0.0) = bias to subtract
from retrieved fluorescence line height
flh_base_wavelengths (float) = flh baseline wavelengths
flh_height_wavelength (float) (default=-1.0) = flh height wavelength
vcnnfile (ifile) = virtual constellation neural net file
picfile (ifile) = pic table for Balch 2-band algorithm
owtfile (ifile) = optical water type file
owtchlerrfile (ifile) = chl error file associate with optical water type
aermodfile (ifile) = aerosol model filename leader
uncertaintyfile (ifile) = uncertainty LUT
aermodels (string) (default=[r30f95v01,r30f80v01,r30f50v01,r30f30v01,r30f20v01,r30f10v01,r30f05v01,r30f02v01,r30f01v01,r30f00v01,r50f95v01,r50f80v01,r50f50v01,r50f30v01,r50f20v01,r50f10v01,r50f05v01,r50f02v01,r50f01v01,r50f00v01,r70f95v01,r70f80v01,r70f50v01,r70f30v01,r70f20v01,r70f10v01,r70f05v01,r70f02v01,r70f01v01,r70f00v01,r75f95v01,r75f80v01,r75f50v01,r75f30v01,r75f20v01,r75f10v01,r75f05v01,r75f02v01,r75f01v01,r75f00v01,r80f95v01,r80f80v01,r80f50v01,r80f30v01,r80f20v01,r80f10v01,r80f05v01,r80f02v01,r80f01v01,r80f00v01,r85f95v01,r85f80v01,r85f50v01,r85f30v01,r85f20v01,r85f10v01,r85f05v01,r85f02v01,r85f01v01,r85f00v01,r90f95v01,r90f80v01,r90f50v01,r90f30v01,r90f20v01,r90f10v01,r90f05v01,r90f02v01,r90f01v01,r90f00v01,r95f95v01,r95f80v01,r95f50v01,r95f30v01,r95f20v01,r95f10v01,r95f05v01,r95f02v01,r95f01v01,r95f00v01]) = aerosol models
met1 (ifile) (default=$OCDATAROOT/common/met_climatology.hdf) =
1st meteorological ancillary data file
met2 (ifile) = 2nd meteorological ancillary data file
met3 (ifile) = 3rd meteorological ancillary data file
ozone1 (ifile) (default=$OCDATAROOT/common/ozone_climatology.hdf) =
1st ozone ancillary data file
ozone2 (ifile) = 2nd ozone ancillary data file
ozone3 (ifile) = 3rd ozone ancillary data file
rad1 (ifile) = Ancillary data for PAR, 1st file
rad2 (ifile) = Ancillary data for PAR, 2nd file
rad3 (ifile) = Ancillary data for PAR, 3rd file
anc_profile1 (ifile) =
1st ancillary profile data file
anc_profile2 (ifile) =
2nd ancillary profile data file
anc_profile3 (ifile) =
3rd ancillary profile data file
anc_aerosol1 (ifile) =
1st ancillary aerosol data file
anc_aerosol2 (ifile) =
2nd ancillary aerosol data file
anc_aerosol3 (ifile) =
3rd ancillary aerosol data file
sfc_albedo (ifile) =
ancillary cloud albedo data file
cth_albedo (ifile) =
ancillary albedo file for cloud top height use
anc_cor_file (ifile) = ozone correction file
pixel_anc_file (ifile) = per pixel ancillary data file
land (ifile) (default=$OCDATAROOT/common/gebco_ocssw_v2020.nc) = land mask file
water (ifile) (default=$OCDATAROOT/common/gebco_ocssw_v2020.nc) =
shallow water mask file
demfile (ifile) (default=$OCDATAROOT/common/gebco_ocssw_v2020.nc) =
digital elevation map file
dem_auxfile (ifile) = auxiliary digital elevation map file
mldfile (ifile) = Multi-layer depth file
icefile (ifile) (default=$OCDATAROOT/common/ice_mask.hdf) = sea ice file
ice_threshold (float) (default=0.1) = sea ice fraction above which will be
flagged as sea ice
sstcoeffile (ifile) = IR sst algorithm coefficients file
dsdicoeffile (ifile) = SST dust correction algorithm coefficients file
sstssesfile (ifile) = IR sst algorithm error statistics file
sst4coeffile (ifile) = SWIR sst algorithm coefficients file
sst4ssesfile (ifile) = SWIR sst algorithm error statistics file
sst3coeffile (ifile) = Triple window sst algorithm coefficients file
sst3ssesfile (ifile) = Triple window sst algorithm error statistics file
sstfile (ifile) (default=$OCDATAROOT/common/sst_climatology.hdf) = input
SST reference file
sstreftype (int) (default=0) = Reference SST field source
0: Reynolds OI SST reference file
1: AMSR-E daily SST reference file
2: AMSR-E 3-day SST reference file
3: ATSR monthly SST reference file
4: NTEV2 monthly SST reference file
5: AMSR-E 3-day or night SST reference file
6: WindSat daily SST reference file
7: WindSat 3-day SST reference file
8: WindSat 3-day or night SST reference file
sstrefdif (float) (default=100.0) = stricter sst-ref difference threshold
viirsnv7 (int) (default=-1) = =1 to use the VIIRSN V7 high senz latband sst and sst3 equations
viirsnosisaf (int) (default=0) = =1 to use the VIIRSN OSI-SAF sst and sst3 equations
no2file (ifile) (default=$OCDATAROOT/common/no2_climatology.hdf) = no2
ancillary file
alphafile (ifile) (default=$OCDATAROOT/common/alpha510_climatology.hdf) =
alpha510 climatology file
tauafile (ifile) (default=$OCDATAROOT/common/taua865_climatology.hdf) =
taua865 climatology file
flaguse (string) (default=) = Flags to use
xcalbox (int) (default=0) = pixel size of the central box in the L1 scene
(e.g. 5 pixels around MOBY) to be extracted into xcalfile for the
cross-calibration, 0=whole L1
xcalboxcenter (int) (default=[0,0]) = Central [ipix, iscan] of the box in
the L1 scene, [0,0] = center of the L1 scene
xcalpervalid (int) (default=0) = min percent of valid cross-calibration
pixels within the box or the L1 scene, 0 = at least 1 pixel
xcalsubsmpl (int) (default=1) = Sub-sampling rate for the data to be used
for the cross-calibration
chlthreshold (float) (default=100.000000) = threshold on L2 data chlorophyll
(100.000000=CHL_MAX)
aotthreshold (float) (default=1.000000) = threshold on L2 data AOTs
(1.000000=AOT_MAX)
coccolith (float) (default=[1.1,0.9,0.75,1.85,1.0,1.65,0.6,1.15]) =
coccolithophore algorithm coefs
cirrus_thresh (float) (default=[-1.0,-1.0]) = cirrus reflectance thresholds
taua (float) = [taua_band1,...,taua_bandn] aerosol optical thickness of the
calibration data point
absaer (float) (default=0.0) = absorbing aerosol threshold on aerosol index
rhoamin (float) (default=0.0001) = min NIR aerosol reflectance to attempt
model lookup
epsmin (float) (default=0.85) = minimum epsilon to trigger atmospheric
correction failure flag
epsmax (float) (default=1.35) = maximum epsilon to trigger atmospheric
correction failure flag
tauamax (float) (default=0.3) = maximum 865 aerosol optical depth to trigger
hitau flag
nLwmin (float) (default=0.15) = minimum nLw(555) to trigger low Lw flag
wsmax (float) (default=12.0) = windspeed limit on white-cap correction in m/s
windspeed (float) (default=-1000.0) = user over-ride of windspeed in m/s
(-1000=use ancillary files)
windangle (float) (default=-1000.0) = user over-ride of wind angle in deg
(-1000=use ancillary files)
pressure (float) (default=-1000.0) = user over-ride of atmospheric pressure
in mb (-1000=use ancillary files)
ozone (float) (default=-1000.0) = user over-ride of ozone concentration in
cm (-1000=use ancillary files)
relhumid (float) (default=-1000.0) = user over-ride of relative humidity in
percent (-1000=use ancillary files)
watervapor (float) (default=-1000.0) = user over-ride of water vapor in
g/cm^2 (-1000=use ancillary files)
vcal_opt (int) (default=-1) = Vicarious calibration option
vcal_chl (float) (default=-1.0) = Vicarious calibration chl
vcal_solz (float) (default=-1.0) = Vicarious calibration solz
vcal_nLw (float) = Vicarious calibration normalized water leaving radiances
vcal_Lw (float) = Vicarious calibration water leaving radiances
vcal_depth (float) (default=-1000.0) = depth to use to exclude data from target file
e.g. -1000 excludes depths less than 1000m
vcal_min_nbin (int) (default=4) = minimum # of samples in a bin for acceptance
vcal_min_nscene (int) (default=3) = minimum # of scenes in a bin for acceptance
owmcfile (ifile) (default=$OCDATAROOT/common/owmc_lut.hdf) = lut for OWMC
classification
north (float) (default=-999) = north boundary
south (float) (default=-999) = south boundary
east (float) (default=-999) = east boundary
west (float) (default=-999) = west boundary
xbox (int) (default=-1) = number of pixels on either side of the SW point
ybox (int) (default=-1) = number of scan lines on either side of the SW point
subsamp (int) (default=1) = sub-sampling interval
prodxmlfile (ofile) = output XML file describing all possible products
breflectfile (ifile) = input NetCDF file for bottom reflectances and bottom types
bpar_validate_opt (int) (default=0) = use solar noon(0), use sensor overpass (1)
bpar_elev_opt (int) (default=0) = use bathymery (0), user-defined geometric depth (1)
bpar_elev_value (float) (default=30.0) = user defined bpar geometric depth value
deflate (int) (default=0) = deflation level
raman_opt (int) (default=0) = Raman scattering Rrs correction options
0: no correction
1: Lee et al. (2013) empirical correction
2: Westberry et al. (2013) analytical correction
3: Lee et al. (1994) analytical correction
gmpfile (ifile) = GMP geometric parameter file (MISR only)
water_spectra_file (ifile) = water absorption/scattering coefficient file
shallow_water_depth (float) (default=30.0) = threshold for flagging shallow water
avw_coef (float) (default=[0.0,0.0,0.0,0.0,0.0,0.0]) = coefficients for AVW
cloud_hgt_file (ifile) = Cloud height and temperature file
Currently, use the MODIS L2 cloud file (MYD06...)
from the LAADS DAAC
doi (string) = Digital Object Identifier (DOI) string
wavelength_3d (string) = wavelength_3d input, written in ascending order
with format 'wavelength_3d=nnn,nnn,nnn' where nnn is a sensor wavelength
or a range of wavelengths as follows 'nnn:nnn'
mbac_wave (int) = bands used for mbac atmospheric correction
calfile (ifile) = system calibration file
rad_opt (int) (default=0) = radiation correction option (sensor-specific)
0: no correction
1: apply MERIS Smile correction
viirscalparfile (ifile) = VIIRS L1A calibration parameter file name (VIIRS only)
geom_per_band (boolean) (default=0) = geometry per band option:
0: use nominal viewing geometry - same for all bands
1: use band-specific viewing geometry (if available)
xcalfile (ifile) = cross-calibration file
xcal_opt (int) = cross-calibration option (sensor-specific) comma separated
list of option values, 1 per band, with bands listed in xcal_wave.
3: apply cross-calibration corrections (polarization and rvs)
2: apply cross-calibration polarization corrections
1: apply cross-calibration rvs corrections
0: no correction
xcal_wave (float) = wavelengths at which to apply cross-calibration. Comma
separated list of sensor wavelength values associated with xcal_opt.
resolution (int) (default=-1) = processing resolution (MODIS only)
-1: standard ocean 1km processing
1000: 1km resolution including aggregated 250 and 500m land bands
500: 500m resolution including aggregated 250 land bands and
replication for lower resolution bands
250: 250m resolution with replication for lower resolution bands
newavhrrcal (int) (default=0) = =1 for new noaa-16 calibration
ch22detcor (float) (default=[1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0]) =
Channel 22 detector corrections (MODIS only)
ch23detcor (float) (default=[1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0]) =
Channel 23 detector corrections (MODIS only)
sl_pixl (int) (default=-1) = SeaWiFS only, number of LAC pixels for
straylight flagging
sl_frac (float) (default=0.25) = SeaWiFS only, straylight fractional
threshold on Ltypical
outband_opt (int) (default=99) = out-of-band correction for water-leaving
radiances
2: On (default for MODIS, SeaWiFS, OCTS)
0: Off (default for MOS, OSMI)
maskland (boolean) (default=on) = land mask option
maskbath (boolean) (default=off) = shallow water mask option
maskcloud (boolean) (default=on) = cloud mask option
maskglint (boolean) (default=off) = glint mask option
masksunzen (boolean) (default=off) = large sun zenith angle mask option
masksatzen (boolean) (default=off) = large satellite zenith angle mask option
maskhilt (boolean) (default=on) = high Lt masking
maskstlight (boolean) (default=on) = stray light masking
sunzen (float) (default=75.0) = sun zenith angle threshold in deg.
satzen (float) (default=60.0) = satellite zenith angle threshold
hipol (float) (default=0.5) = threshold on degree-of-polarization to set
HIPOL flag
glint_thresh (float) (alias=glint) (default=0.005) = high sun glint threshold
cloud_thresh (float) (alias=albedo) (default=0.027) = cloud reflectance
threshold
cloud_wave (float) (default=865.0) = wavelength of cloud reflectance test
cloud_eps (float) (default=-1.0) = cloud reflectance ratio threshold
(-1.0=disabled)
cloud_mask_file (ifile) = cloud mask file
cloud_mask_opt (int) (default=0) = cloud mask file variable name
0: cloud_flag
1: cloud_flag_dilated
offset (float) = calibration offset adjustment
gain (float) = calibration gain multiplier
spixl (int) (default=1) = start pixel number
epixl (int) (default=-1) = end pixel number (-1=the last pixel)
dpixl (int) (default=1) = pixel sub-sampling interval
sline (int) (default=1) = start line number
eline (int) (default=-1) = end line number (-1=the last line)
dline (int) (default=1) = line sub-sampling interval
georegion_file (string) = geo region mask file with lat,lon,georegion 1=process pixel, 0=do not
extreme_glint (float) (default=0.03) = extreme sun glint threshold
watervapor_bands (int) = bands used for calculating water vapor based on 3-band depth approach