A. Valente et al.: A compilation of global bio-optical in situ data 
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Table 1. The standard variables, nomenclatures, and units in the final table 
Variable/column Description and units 
'dx 
ime 
‚at 
‚on 
depth_water 
chla_hplc 
chla_fluor 
mrs_<band => 
aph_ <band> 
adg_<band> 
bp_<band> 
<d_<band => 
sm 
stopol1 
chla_hplc_dataset 
chla_hplc_subdataset 
chla_hple_contributor 
chla_fluor_dataset 
chla_fluor_subdataset 
chla_fluor_contributor 
s_dataset 
rrs_subdataset 
"rs_contributor 
aph_dataset 
aph_subdataset 
aph_contributor 
adg_dataset 
adg_subdataset 
adg_contributor 
ıbp_dataset 
»bp_subdataset 
bp_contributor 
<d_dataset 
<d_subdataset 
<d_contributor 
sm_dataset 
:sm_subdataset 
:sm_contributor 
dag_time 
flag _chl method 
Unique key identifying each row 
GMT, <YYYY-MM-DD>T<HH:MM:SS>Z 
Decimal degree, —90 : 90, south negative 
Decimal degree, — 180: 180, west negative 
Sampling depth (m) — all assigned to zero 
[otal chlorophyll-a concentration determined from HPLC method (mg m73) 
Chlorophyll-a concentration determined from fluorometric or spectrophotometric methods (mg m”) 
Remote-sensing reflectance (sr” h 
Algal pigment absorption coefficient (m!) 
Detrital plus CDOM absorption coefficient m7') 
Darticle backscattering coefficient (m h 
diffuse attenuation coefficient for downward irradiance (m 7!) 
Total suspended matter (g m73) 
Water depth from ETOPO1 (m) 
Metadata string for “chla_hplc” 
Metadata string for “chla_hplc” 
Metadata string for “chla_hplc” 
Metadata string for “chla_fluor” 
Metadata string for “chla_fluor” 
Metadata string for “chla_fluor” 
Metadata string for “rrs” 
Metadata string for “rrs” 
Metadata string for “rrs” 
Metadata string for “aph” 
Metadata string for “aph” 
Metadata string for “aph” 
Metadata string for “adg” 
Metadata string for “adg” 
Metadata string for “adg” 
Metadata string for “bbp” 
Metadata string for “bbp” 
Metadata string for “bbp” 
Metadata string for “kd” 
Metadata string for “kd” 
Metadata string for “kd” 
Metadata string for “tsm” 
Metadata string for “tsm” 
Metadata string for “tsm” 
“1” if observation without time (set to 12:00:00 UTC) 
“1” if observation as unknown chlorophyll method 
reprocessed in 2017 (“MOBY R2017 reprocessing”) to 
include various improvements in the calibration of the 
instrument and post-processing, which include: (1) a new 
method to extrapolate the upwelling radiance attenuation 
coefficient to the surface (Voss et al., 2017); (2) an increase 
in arm depth by 0.234 m; and (3) a single pixel shift in 
the data for the red spectrograph collected at a bin factor 
of 384. Only the last two changes were included in the 
present compilation. The first change uses model results to 
improve Lw at wavelengths above 575 nm, by correcting 
che diffuse upwelling radiance attenuation coefficient for 
inelastic effects. Thus for wavelengths above 575 nm, the 
Lw21 product in the Gold directory should be investigated. 
As mentioned before, the MOBY data compiled in this work 
are sensor-specific. Therefore, attention is necessary to use 
the correct MOBY data when validating a particular sensor. 
The way MOBY data are stored in the final merged table 
is consistent with the original wavelengths; however, these 
wavelengths can differ from what is sometimes expected 
to be the central wavelength of a given band and sensor. 
Irrespective of the wavelength where MOBY data are 
stored in the final table, for validation of bands 1—6 of 
SeaWiFS, MOBY data stored in the final merged table at 
412, 443, 490, 510, 555, and 670 nm, respectively, should 
attos://doi.org/10.5194/essd-14-573 /-202:; 
Earth Syst. Sei. Data, 14. 5737-5770. 2022