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https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_806471 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_806471.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_806471/ public 234Th flux in epipelagic waters at Station ALOHA and the Equatorial Pacific from R/V Kilo Moana cruises KM1407, KM1418, & KM1515 during 2014-2015 234Th flux in epipelagic waters at Station ALOHA and the Equatorial Pacific from R/V Kilo Moana cruises KM1407, KM1418, & KM1515 during 2014-2015.\n\ncdm_data_type = Other\nVARIABLES:\nCruise (unitless)\nDate_initial (unitless)\nDate_final (unitless)\nSite (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nSeason (unitless)\ndepth (m)\nTh_flux (dpm m-2 d-1)\nTh_flux_error (dpm m-2 d-1)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_806471_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_806471/index.htmlTable https://www.bco-dmo.org/dataset/806471 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_806471.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_806471&showErrors=false&email= BCO-DMO bcodmo_dataset_806471
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_764608 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_764608.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_764608/ public Activity percent and composition percent of radionuclides, protein, carbohydrates, and iron at various pH levels using isoelectric focusing of radionuclide-labeled EPS Laboratory studies were conducted to examine the sorption of selected radionuclides (234Th, 233Pa, 210Po, 210Pb, and 7Be) onto inorganic (pure silica and acid-cleaned diatom frustules) and organic (diatom cells with or without silica frustules) particles in natural seawater and the role of templating biomolecules and exopolymeric substances (EPS) extracted from the same species of diatom, Phaeodactylum tricornutum, in the sorption process. The range of partition coefficients (Kd, reported as logKd) of radionuclides between water and the different particle types was 4.78\\u20136.69 for 234Th, 5.23\\u20136.71 for 233Pa, 4.44\\u20135.86 for 210Pb, 4.47\\u20134.92 for 210Po, and 4.93\\u20137.23 for 7Be, similar to values reported for lab and field determinations. The sorption of all radionuclides was significantly enhanced in the presence of organic matter associated with particles, resulting in Kd one to two orders of magnitude higher than for inorganic particles only, with highest values for 7Be (logKd of 7.2). Results further indicate that EPS and frustule-embedded biomolecules in diatom cells are responsible for the sorption enhancement rather than the silica shell itself. By separating radiolabeled EPS via isoelectric focusing, we found that isoelectric points are radionuclide specific, suggesting that each radionuclide binds to specific biopolymeric functional groups, with the most efficient binding sites likely occurring in acid polysaccharides, iron hydroxides, and proteins. Further progress in evaluating the effects of diatom frustule\\u2013related biopolymers on binding, scavenging, and fractionation of radionuclides would require the application of molecular-level characterization\\r\\ntechniques.\n\ncdm_data_type = Other\nVARIABLES:\npH (Sea Water Ph Reported On Total Scale, unitless)\nTh234_pcnt_activity_EPS_Si_plus (Mass Concentration Of Silicate In Sea Water, percent activity)\nTh234_pcnt_activity_EPS_Si_minus (Mass Concentration Of Silicate In Sea Water, percent activity)\nPa233_pcnt_activity_EPS_Si_plus (Mass Concentration Of Silicate In Sea Water, percent activity)\nPa233_pcnt_activity_EPS_Si_minus (Mass Concentration Of Silicate In Sea Water, percent activity)\nBe7_pcnt_activity_EPS_Si_plus (Mass Concentration Of Silicate In Sea Water, percent activity)\nBe7_pcnt_activity_EPS_Si_minus (Mass Concentration Of Silicate In Sea Water, percent activity)\nPb210_pcnt_activity_EPS_Si_plus (Mass Concentration Of Silicate In Sea Water, percent activity)\nPb210_pcnt_activity_EPS_Si_minus (Mass Concentration Of Silicate In Sea Water, percent activity)\nPo210_pcnt_activity_EPS_Si_plus (Mass Concentration Of Silicate In Sea Water, percent activity)\n... (7 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_764608_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_764608/index.htmlTable https://www.bco-dmo.org/dataset/764608 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_764608.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_764608&showErrors=false&email= BCO-DMO bcodmo_dataset_764608
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765835 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765835.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_765835/ public Carbon, Nitrogen, biogenic silica, thorium-234, and mass fluxes from upper ocean sediment traps at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017 Carbon, Nitrogen, biogenic silica, thorium-234, and mass fluxes from upper ocean sediment traps at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017.\n\ncdm_data_type = Other\nVARIABLES:\ndeployment (unitless)\nstation (unitless)\nplatform (unitless)\ncollector (unitless)\ncollection_area (meters squared (m^2))\nreplicates (unitless)\ndepth (m)\nlatitude (degrees_north)\nlongitude (degrees_east)\nlat_recover (Latitude, decimal degrees (DD))\nlon_recover (Longitude, decimal degrees (DD))\ndate_start (unitless)\ntime_start (unitless)\ntime (ISO Date Time Start, seconds since 1970-01-01T00:00:00Z)\ndate_end (unitless)\ntime_end (unitless)\ndate_recover (unitless)\ntime_recover (unitless)\ndeploy_length (number of days)\nN_f_mean (millimoles per meter squared per day (mmol/m^2/d))\nN_f_err_mean (millimoles per meter squared per day (mmol/m^2/d))\nN_f_A (millimoles per meter squared per day (mmol/m^2/d))\nN_f_err_A (millimoles per meter squared per day (mmol/m^2/d))\nN_f_B (millimoles per meter squared per day (mmol/m^2/d))\nN_f_err_B (millimoles per meter squared per day (mmol/m^2/d))\n... (64 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_765835_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_765835/index.htmlTable https://www.bco-dmo.org/dataset/765835 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_765835.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_765835&showErrors=false&email= BCO-DMO bcodmo_dataset_765835
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765850 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765850.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_765850/ public TPC, PIC, POC, TPN, and Th-234 from in-situ pumps at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017 TPC, PIC, POC, TPN, and Th-234 from in-situ pumps at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017.\n\ncdm_data_type = Other\nVARIABLES:\ndeployment (unitless)\nstation (unitless)\ndepth (m)\npore_size (micrometers (um))\nlatitude (degrees_north)\nlongitude (degrees_east)\ndate_start (unitless)\ntime_start (unitless)\ntime (ISO Date Time Start, seconds since 1970-01-01T00:00:00Z)\ndate_end (unitless)\ntime_end (unitless)\nvolume (liters (L))\nTPN (micromoles per liter (umol/L))\nTPN_err (micromoles per liter (umol/L))\nTPC (micromoles per liter (umol/L))\nTPC_err (micromoles per liter (umol/L))\nPIC (Particulate Inorganic Carbon, micrograms per liter (ug/L))\nPIC_err (micrograms per liter (ug/L))\nPOC (Particulate Organic Carbon, micromoles per liter (umol/L))\nPOC_err (micromoles per liter (umol/L))\nTh234_part (disintegration per minute per liter (dpm/L))\nTh234_part_err (disintegration per minute per liter (dpm/L))\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_765850_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_765850/index.htmlTable https://www.bco-dmo.org/dataset/765850 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_765850.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_765850&showErrors=false&email= BCO-DMO bcodmo_dataset_765850
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765859.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765859 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765859.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_765859/ public Water column Th-234 activities from 4-liter water samples at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017 Water column Th-234 activities from 4-liter water samples at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017.\n\ncdm_data_type = Other\nVARIABLES:\ndeployment (unitless)\nstation (unitless)\ncast (unitless)\nbottle (unitless)\ndepth (m)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndate (unitless)\ntime2 (Time, unitless)\ntime (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)\nU238_tot (disintegration per minute per liter (dpm/L))\nU238_tot_err (disintegration per minute per liter (dpm/L))\nTh234_tot (disintegration per minute per liter (dpm/L))\nTh234_tot_err (disintegration per minute per liter (dpm/L))\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_765859_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_765859/index.htmlTable https://www.bco-dmo.org/dataset/765859 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_765859.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_765859&showErrors=false&email= BCO-DMO bcodmo_dataset_765859
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_516062 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_516062.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_516062/ public Water column Th-234 activity determined using a 4-L technique from samples collected on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project) Water column Thorium-234 and Uranium-238 measured on the MV1008 cruise in the Costa Rica Dome (CRD) region of the Eastern Tropical Pacific Ocean.\n\ncdm_data_type = Other\nVARIABLES:\nevent (integer)\ncast (integer)\ncycle (integer)\ndepth (m)\nniskin (integer)\nsample (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nsal (practical salinity units (PSU))\ndensity (kilograms per cubic meter (kg m-3))\nU238_activity (decays per minute per liter (dpm L-1))\nTh234_activity (decays per minute per liter (dpm L-1))\nuncertainty (decays per minute per liter (dpm L-1))\ntime (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_516062_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_516062/index.htmlTable https://www.bco-dmo.org/dataset/516062 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_516062.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_516062&showErrors=false&email= BCO-DMO bcodmo_dataset_516062

 
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