Title of dataset: Dissolved trace metal (Fe, Ni, Cu, Zn, Cd, Pb) concentrations in the Indian and Pacific sectors of the Southern Ocean from the Antarctic Circumnavigation Expedition (2016-2017). Data files: ACE_TM_concentrations.csv File header TMR_Cast: Trace metal rosette deployment number from the Antarctic Circumnavigation Expedition (ACE) ACE_Event: Unique event number from ACE Time [UTC]: Time of Trace metal rosette sampling (h)h:mm [UTC] Date_Time [ISO_8601]: Date and time of sample collection in ISO_8601 format [yyyy-mm-ddThh:mi:ss+00:00] ACE_Sample_ID: Unique sample identifier from ACE, formatted as standardized for the ACE cruise expedition as follows: shipname/ACE/legnumber/projectnumber/julianday[UTC]/eventnumber/PIinitials/projectsampleID Latitude [degrees_north]: latitude at which the trace metal rosette deployment began [decimal degrees North] Longitude [degrees_east]: longitude at which the trace metal rosette deployment began [decimal degrees East] Depth [m]: depth below the surface from which the seawater sample was collected [m] Fe [nmol kg-1]: Concentration of dissolved iron [nanomols per kilogram] Fe_stdev [nmol kg-1]: Standard deviation of dissolved iron concentration [nanomols per kilogram] Fe_flags: Quality flags for Fe data. A value of 1 indicates no quality issues and a values of 9 indicates values deemed oceanographically inconsistent and suspect of contamination. See README file for further information. Zn [nmol kg-1]: Concentration of dissolved zinc [nanomols per kilogram] Zn_stdev [nmol kg-1]: Standard deviation of dissolved zinc concentration [nanomols per kilogram] Zn_flags: Quality flags for Fe data. A value of 1 indicates no quality issues and a values of 9 indicates values deemed oceanographically inconsistent and suspect of contamination. See README file for further information. Cu [nmol kg-1]: Concentration of dissolved copper [nanomols per kilogram] Cu_stdev [nmol kg-1]: Standard deviation of dissolved copper concentration [nanomols per kilogram] Cu_flags: Quality flags for Fe data. A value of 1 indicates no quality issues and a values of 9 indicates values deemed oceanographically inconsistent and suspect of contamination. See README file for further information. Ni [nmol kg-1]: Concentration of dissolved nickel [nanomols per kilogram] Ni_stdev [nmol kg-1]: Standard deviation of dissolved nickel concentration [nanomols per kilogram] Ni_flags: Quality flags for Fe data. A value of 1 indicates no quality issues and a values of 9 indicates values deemed oceanographically inconsistent and suspect of contamination. See README file for further information. Cd [nmol kg-1]: Concentration of dissolved cadmium [nanomols per kilogram] Cd_stdev [nmol kg-1]: Standard deviation of dissolved cadmium concentration [nanomols per kilogram] Cd_flags: Quality flags for Fe data. A value of 1 indicates no quality issues and a values of 9 indicates values deemed oceanographically inconsistent and suspect of contamination. See README file for further information. Pb [pmol kg-1]: Concentration of dissolved lead [picomols per kilogram] Pb_stdev [pmol kg-1]: Standard deviation of dissolved lead concentration [picomols per kilogram] Pb_flags: Quality flags for Fe data. A value of 1 indicates no quality issues and a values of 9 indicates values deemed oceanographically inconsistent and suspect of contamination. See README file for further information.