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https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_937302_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_937302_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_937302_v1/ public [BAIT Bottle Data from Trace-metal CTD Casts] - Concentrations of trace metals and dissolved macronutrients and CTD sensor data from four cruises in the Bermuda Atlantic Time-series Study (BATS) region in March, May, August and November 2019 (NSFGEO-NERC: Collaborative Research: Using Time-series Field Observations to Constrain an Ocean Iron Model) These data include the concentrations of trace metals (dissolved and soluble iron, dissolved and soluble manganese, dissolved aluminum) and dissolved macronutrients (nitrate+nitrite, phosphate, reactive silicate) determined in water-column samples collected using a trace-metal clean CTD rosette, or an inflatable dinghy, during four cruises in the Bermuda Atlantic Time-series Study (BATS) region in March, May, August and November 2019. Also presented are CTD sensor data (pressure, temperature, salinity, chlorophyll fluorescence, dissolved oxygen) and derived variables (water depth, density) corresponding to the CTD-rosette bottle samples. The samples and associated data were collected for the BAIT project (GEOTRACES Process Study GApr13). Post-cruise sample analyses were performed at Old Dominion University (trace metals) and the Bermuda Institute of Ocean Sciences (macronutrients).\n\ncdm_data_type = Other\nVARIABLES:\nCruise_ID (unitless)\nStation (unitless)\nSample_ID (unitless)\nPressure (decibars)\ndepth (m)\nlatitude (degrees_north)\nlongitude (Long, degrees_east)\ntime (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)\nDate_UTC (unitless)\nTime_UTC (unitless)\nTemp (degrees Celsius)\nSal (unitless)\nChl (milligrams per cubic meter (mg/m^3))\nO2 (micromoles per kilogram (umol/kg))\nSigma_theta (unitless)\nDFe (nanomoles per liter (nM))\nDFe_Flag (unitless)\nsFe (nanomoles per liter (nM))\n... (13 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_937302_v1_fgdc.xml https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_937302_v1_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_937302_v1/index.htmlTable https://www.bco-dmo.org/dataset/937302 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_937302_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_937302_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_937302_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_957527_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_957527_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_957527_v1/ public [Open cell and single-step titration method comparison] - Open cell and single-step method for total alkalinity titrations from samples collected on R/V Mirai cruises MR23-06C and MR23-07 in the North Pacific and Western Arctic from September to November 2023 (US GEOTRACES GP17-OCE and GP17-ANT: Inorganic Carbon Cycling in the South Pacific and Southern Oceans by Direct Measurement) Duplicate samples were collected for total alkalinity on two cruises in 2023 aboard the R/V Mirai (MR23-06C and MR23-07) in order to compare two different methods of total alkalinity titrations: the open cell with non-linear least squares fitting and single step with spectrophotometric endpoint detection. Measurements of dissolved inorganic carbon and pH on the total scale were also made as quality control checks. GLODAPv2 hinted at a potential offset between laboratories in the Pacific Ocean. We hypothesized that if non-negligible amounts of organic alkalinity were present, the different methods could be titrating different amounts leading to differences between the methods. The results show that any offset is within the uncertainty of the analytical precision and presence of organic alkalinity in open ocean waters remains inconclusive.\n\ncdm_data_type = Other\nVARIABLES:\nCruise (unitless)\nsample_ID (unitless)\nStation (unitless)\nCast (unitless)\nNiskinBottle_No (unitless)\nDate (unitless)\ntime_unitless (Time, unitless)\ntime (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\nCTD_Salinity (unitless)\nCTD_Salinity_flag (unitless)\nBottle_Salinity (unitless)\nBot_Sal_flag (unitless)\nCTD_Pressure (decibars (db))\nTotal_Alkalinity_Single_Step_method (micromoles per kilogram of seawater (umol/kg_sw))\nTotal_Alkalinity_Single_Step_Method_flag (unitless)\nTotal_Alkalinity_Open_Cell_Method (micromoles per kilogram of seawater (umol/kg_sw))\nTotal_Alkalinity_Open_Cell_Method_Flag (unitless)\n... (30 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_957527_v1_fgdc.xml https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_957527_v1_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_957527_v1/index.htmlTable https://osprey.bco-dmo.org/dataset/957527 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_957527_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_957527_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_957527_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_699160.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_699160 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_699160.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_699160/ public [Particulate trace elements] - Particulate trace element concentrations from the NOAA R/V Ronald H. Brown CLIVAR A16N cruise in 2013. (Collaborative Research: Trace Metal Deposition And Cycling In The North Atlantic On The 2013 CLIVAR/Repeat Hydrography A16N Expedition) Particulate trace element concentrations from the NOAA R/V Ronald H. Brown CLIVAR A16N cruise in 2013.\n\ncdm_data_type = Other\nVARIABLES:\nSECT_ID (unitless)\nDATE (unitless)\nSTNNBR (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nCASTNO (unitless)\nSAMPNO (unitless)\nBTLNBR (unitless)\ntime2 (TIME, unitless)\nCTDPRS (dbar)\nMg (nmol/L)\nMg_FLAG (unitless)\nAl (nmol/L)\nAl_FLAG (unitless)\nSi (Mass Concentration Of Silicate In Sea Water, nmol/L)\nSi_FLAG (unitless)\nP (nmol/L)\nP_FLAG (unitless)\nS (nmol/L)\nS_FLAG (unitless)\nCl (nmol/L)\nCl_FLAG (unitless)\nCa (nmol/L)\nCa_FLAG (unitless)\nTi (nmol/L)\nTi_FLAG (unitless)\n... (15 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_699160_fgdc.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_699160/index.htmlTable https://www.bco-dmo.org/dataset/699160 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_699160.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_699160&showErrors=false&email= BCO-DMO bcodmo_dataset_699160

 
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