Deep SUNA Manual
For SUNA running firmware version 2.4 or later
4. Terminal Interface of the SUNA
Table 14: Data processing configuration parameters
Parameter
Possible Values
Default Value
Short Name
Fit wavelength low [nm]
210
–
350
217
wfit_low
Fit wavelength high [nm] 210
–3
50
240
wfit_hgh
For the setrange command, use:
wdatboth
Concentrations to fit
1
–
3
1 or 3
fitconcs
Baseline Order
1
1
bl_order
Dark Correction Method SpecAverage, SWAverage
SpecAverage
drkcormt
Temperature
Compensation
On, Off
Off
tempcomp
Salinity Fitting
On, Off
On
salinfit
Bromide Tracing
On, Off
Off
brmtrace
Absorbance Cutoff
0.01
–
10.0
1.3
a_cutoff
Integration Time
Adjustment
Off, On, Persistent
On
intpradj
Integration Time Factor
1
–
20
1
intprfac
Integration Time Step
1
–
20
20
intadstp
Integration Time Max
1
–
20
20
intadmax
The processing configuration parameters completely determine how the spectrum is
processed. Some of the parameters are applicable only in some cases; non-applicable
(N/A) parameters are ignored. TS correction processing, even if configured, will only
proceed if temperature and salinity values have been provided via the APF CTD
command. The following table gives the valid parameter combinations.
Table 15: Combinations of data processing configuration parameters
Processing Mode
Fit
Con.
Br
Trace
TS
Cmp.
Sal.
Fit.
Comment
Freshwater
1
Off
N/A
N/A
Freshwater
and bromide trace
1
On
N/A
N/A
Fit 3 species
3
N/A
Off
N/A Non-T-S correcting processing
T correction (fit S)
3
N/A
On
On
If T unavailable, uses Fit 3 species
TS correction
3
N/A
On
Off
If TS unavailable, uses Fit 3 species
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