Phytoplankton pigment concentrations sampled during the Antarctic Circumnavigation Expedition (ACE) during the Austral Summer of 2016/2017. Data files: ace_phytoplankton_pigments_20190806CURRSGCM.csv, ace_phytoplankton_pigments_lod.csv File header: Cruise_or_Project [string]: Research voyage name Ship [string]: Ship name Latitude [decimal_deg_N]: Latitude of seawater sample collection [decimal degrees North] Longitude [decimal_deg_E]: Longitude of seawater sample collection [decimal degrees South] Sampling_DateTime_UTC [YYYY-MM-DDTHH:MM:SS+HH:MM]: DateTime sample was collected from underway seawater supply or datetime of CTD bottle firing is ISO8601 format [UTC] Leg [string]: Leg of ACE voyage sample was collected, 1-3. ACE_Sample_Number [string]: Sample ID Code in standard ACE format Sample_code [string]: Project 1 sample ID code STNNBR [string]: ACE station number CASTNO [string]: ACE CTD cast number BTLNBR [string]: ACE CTD bottle number Depth [m]: Depth sample was collected from [metres] Filtered_Volume [L]: Volume of seawater filtered [litres] Chlorophyll_c3 [mg/m^3]: pigment concentration for chlorophyll c3 [milligrams per cubic metre] Chlc3QA [Flag]: Quality flag. See README file for description. Chlorophyll_c1c2 [mg/m^3]: sum of pigment concentration for chlorophyll c1 and chlorophyll c2 [milligrams per cubic metre] Chlc1c2QA [Flag]: Quality flag. See README file for description. Chlorophyllide_a [mg/m^3]: pigment concentration for chlorophyllide a and chlorophyllide a-like pigment [milligrams per cubic metre] ChldaQA [Flag]: Quality flag. See README file for description. Peridinin [mg/m^3]: peridinin pigment concentration [milligrams per cubic metre] PeriQA [Flag]: Quality flag. See README file for description. Phaeophorbid_a [mg/m^3]: pigment concentration for phaeophorbide a and phaeophorbide a-like pigment [milligrams per cubic metre] PhdaQA [Flag]: Quality flag. See README file for description. 19Butanoyloxyfucoxanthin [mg/m^3]: 19'-Butanoloxyfucoxanthin pigment concentration [milligrams per cubic metre] ButQA [Flag]: Quality flag. See README file for description. Fucoxanthin [mg/m^3]: Fucoxanthin pigment concentration [milligrams per cubic metre] FucoQA [Flag]: Quality flag. See README file for description. Neoxanthin [mg/m^3]: Neoxanthin pigment concentration [milligrams per cubic metre] NeoQA [Flag]: Quality flag. See README file for description. Prasinoxanthin [mg/m^3]: Prasinoxanthin pigment concentration [milligrams per cubic metre] PrasQA [Flag]: Quality flag. See README file for description. Violaxanthin [mg/m^3]: Violaxanthin pigment concentration [milligrams per cubic metre] ViolaQA [Flag]: Quality flag. See README file for description. 19Hexanoyloxyfucoxanthin [mg/m^3]: 19'-Hexanoloxyfucoxanthin pigment concentration [milligrams per cubic metre] HexQA [Flag]: Quality flag. See README file for description. Diadinoxanthin [mg/m^3]: Diadinoxanthin pigment concentration [milligrams per cubic metre] DiadinoQA [Flag]: Quality flag. See README file for description. Antheraxanthin [mg/m^3]: Antheraxanthin pigment concentration [milligrams per cubic metre] AntheraQA [Flag]: Quality flag. See README file for description. Alloxanthin [mg/m^3]: Alloxanthin pigment concentration [milligrams per cubic metre] AlloQA [Flag]: Quality flag. See README file for description. Diatoxanthin [mg/m^3]: Diatoxanthin pigment concentration [milligrams per cubic metre] DiatoQA [Flag]: Quality flag. See README file for description. Zeaxanthin [mg/m^3]: Zeaxanthin pigment concentration [milligrams per cubic metre] ZeaQA [Flag]: Quality flag. See README file for description. Lutein [mg/m^3]: Lutein pigment concentration [milligrams per cubic metre] LutQA [Flag]: Quality flag. See README file for description. Bacteriochlorophyll_a [mg/m^3]: Bacteriochlorophyll a pigment concentration [milligrams per cubic metre] BchlaQA [Flag]: Quality flag. See README file for description. Chlorophyll_b [mg/m^3]: Chlorophyll b pigment concentration [milligrams per cubic metre] TChlbQA [Flag]: Quality flag. See README file for description. Divinyl_Chlorophyll_a [mg/m^3]: Divinyl chlorophyll a pigment concentration [milligrams per cubic metre] DVChlaQA [Flag]: Quality flag. See README file for description. Chlorophyll_a [mg/m^3]: Sum of pigment concentration for chlorophyll a, chlorophyll a allomers and chlorophyll a epimers [milligrams per cubic metre] ChlaQA [Flag]: Quality flag. See README file for description. Total_Chlorophyll_a [mg/m^3]: Sum of pigment concentration for chlorophyll a, divinyl chlorophyll a and chlorophyllide a and chlorophyllide a-like pigments [milligrams per cubic metre] TchlaQA [Flag]: Quality flag. See README file for description. Phaeophytin_a [mg/m^3]: Sum of pigment concentration for phaeophytin a and phaeophytin a like pigments [milligrams per cubic metre] PhytnaQA [Flag]: Quality flag. See README file for description. Sum_Carotenes [mg/m^3]: Sum of pigment concentrations for beta carotene and alpha carotene pigments [milligrams per cubic metre] TcarQA [Flag]: Quality flag. See README file for description. Observations [string]: Notes recorded during pigment analyses. accept_reject [Flag]: Quality flag. See README file for description. Pigment [string]: Name of pigment concentration LOD [ng/inj]: Limit of detection calculated as nanograms per injection LOD for 2 L filtered [mg/m^3]: Limit of detection calculated as the concentration for a signal-to-noise ratio of 3 for a filtered volume of 2 L [milligrams per cubic metre] Pigment concentration values below the limit of detection are reported with fill value ‘NaN’. Any null values are reported with fill value ‘NaN’.