A. Valente et al.: A compilation of global bio-optical in situ data

r

XV |

3.5

NOMAD

3
=
s; 2.5
2
= 2
N
© 1.5,
B

5753

chlorophyll @ and b, 19’-butanoyloxyfucoxanthin, 19’-hexanoyloxyfucoxanthin,
 alloxanthin, divinyl chlorophyll-a,
fucoxanthin, lutein, peridinin, prasinoxanthin, violaxanthin,
and zeaxanthin. The database is available through PAN-GAEA
 (https://doi.org/10.1594/PANGAEA.793246, Peloquin
 et al., 2013b). For this work, only measurements of total
chlorophyll-a flagged with high quality were used. The time
of day was unavailable and was set to 12:00:00 (UTC). These
observations were flagged with “1” in column “flag_time”.
The compiled variable was “chla_hple”.

31.5

)

rrs(490)/rrs(555)

10

Figure 4. Ranges of remote-sensing reflectance band ratios (412 :
443 and 490 : 555) for all data. The points from the NOMAD data
set are shown in blue for reference. To maximize the number of
ratios per data set, a search window up to 12nm was used when
he four wavelengths (412, 443, 490, 555) were not simultaneously
available. The effect of different search windows was negligible in
the ratio distribution.

One is a data collection entitled “IMOS National Reference
Station (NRS) — Phytoplankton HPLC Pigment Composition
Analysis”, which was acquired from the Australian Ocean
Data Network portal (https://portal.aodn.org.au, last access:
18 December 2022). This data set comprises of phytoplankton
 pigment composition measured by HPLC collected with
small vessels on monthly basis at nine National Reference
Stations as part of the IMOS National Mooring Network.
The other chlorophyll-a data set measured by HPLC and
fluorometry methods is a subset (2015-2021) of the IMOS
Bio-optical Database also available through the AODN por-:al.
 This database comprises of a suite of bio-optical parameers
 from samples collected during research voyages in Aus-:ralian
 waters and is used by the IMOS Ocean Colour Sub-Facility
 to assess the accuracy of satellite ocean colour products
 in Australian coastal and open ocean waters (Schroeder
et al., 2016). The previous data compilations include an earlier
 subset of HPLC chlorophyll-a concentration from the
IMOS Bio-optical Database that was acquired through the
SeaBASS archive. These data can be found under “dataset”
string “seabass” and Lesley Clementson as data contribu-(or.
 The compiled variables for IMOS were “chla_hplc” and
“chla fluor”.

2.2.23 MARineEcosytem DATa (MAREDAT)
MAREDAT database is a global assemblage of pigments
measured by HPLC (Peloquin et al., 2013a) from combination
 of 136 independent field data sets, solicited from
investigators and databases. The database provides high
quality measurements of taxonomic pigments including

attos://doi.org/10.5194/essd-14-573 /-2027

2.2.24 Palmer Station Long-term Ecological Research
(PALMER)

PALMER is a monitoring station located in western Antarctic_
 Peninsula. The Palmer station investigates the marine
 ecology of the Southern Ocean with focus on the
pelagic marine ecosystem, including sea ice habitats, regional
 oceanography, and nesting sites of seabird predators.
Ihe PALMER data include measurements of meteorological,
 oceanographic, sea ice, predators, nutrients and biogeochemistry,
 pigments, primary production, zooplankton,
and microbes parameters. This work used the measurements
of chlorophyll analysed by HPLC and fluorometry taken
at the Palmer Station (Palmer Station Antarctica LTER et
al., 2020a, b) and from the annual cruises off the coast of
the Western Antarctica Peninsula (Palmer Station Antarctica
 LTER et al., 2018, 2020c). The compiled variables were
“chla_hple”. “chla_fluor”.

2.2.25 SeaDataNet archive (SEADATANET)
SeaDataNet is a Pan-European infrastructure for ocean and
marine data management. It aims to develop a standardized
system for managing large and diverse data sets collected by
oceanographic cruises and automatic observation systems.
For this work, discrete chlorophyll-a concentration observations
 with an “access restriction”” set to “academic” and “unrestricted”
 were acquired from the SeaDataNet platform with
guidance from the helpdesk. Only data from the “Institute of
Marine Research — Norwegian Marine Data Centre (NMD),
Norway”, which comprised most of the acquired data, were
used. All chlorophyll observations were from discrete samples
 measured by fluorometric, spectrophotometric, or HPLC
methods, but the exact method was not given. Thus, the observations
 were marked as “chla_fluor”, although some were
possibly from HPLC measurements, and were flagged with
“1” in a column “flag_chla_method”. The compiled variables
were ‘“chla fluor”

2.2.26

Data provided by Trevor Platt and Shubha
Sathvendranath (TPSS)

In this work, the TPSS data source refers to a group of observations
 that were provided to this compilation by Trevor

Earth Syst. Sei. Data, 14. 5737-5770. 2022