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https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_738772 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_738772.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_738772/ public Coccolithophore-associated organic biopolymers for fractionating particle-reactive radionuclides (234Th, 233Pa, 210Pb, 210Po, and 7Be) Laboratory incubation experiments using the coccolithophore Emiliania huxleyi were conducted in the presence of 234Th, 233Pa, 210Pb, 210Po, and 7Be to differentiate radionuclide uptake to the CaCO3 coccosphere from coccolithophore-associated biopolymers.\n\ncdm_data_type = Other\nVARIABLES:\nBiopolymer_Fraction (unitless)\nTh234_Activity (unitless)\nPa233_Activity (unitless)\nPb210_Activity (unitless)\nPo210_Activity (unitless)\nBe7_Activity (unitless)\nProtein_Amount (microMole Carbon (uM-C))\nTCHO_Amount (microMole Carbon (uM-C))\nURA_Amount (microMole Carbon (uM-C))\nProtein_C_TCHO_C (unitless)\nURA_pcnt_TCHO (unitless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_738772_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_738772/index.htmlTable https://www.bco-dmo.org/dataset/738772 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_738772.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_738772&showErrors=false&email= BCO-DMO bcodmo_dataset_738772
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782977 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782977.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_782977/ public Dissolved radium isotope activity around Guaymas Basin from samples collected by CTD and HOV Alvin during R/V Atlantis cruise AT37-06 in December 2016 This dataset presents dissolved radium isotope activities around Guaymas Basin.\n\ncdm_data_type = Other\nVARIABLES:\nCollection_Method (unitless)\nAlvin_Dive_Number (unitless)\nCast (unitless)\ndepth (m)\nCore_Number (unitless)\ntime (Date Time, seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\nSample_Volume (liters (L))\nRa223_Activity (dpm/100L)\nRa223_Unc (dpm/100L)\nRa224_Activity (dpm/100L)\nRa224_Unc (dpm/100L)\nRa226_Activity (dpm/100L)\nRa226_Unc (dpm/100L)\nRa228_Activity (dpm/100L)\nRa228_Unc (dpm/100L)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_782977_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_782977/index.htmlTable https://www.bco-dmo.org/dataset/782977 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_782977.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_782977&showErrors=false&email= BCO-DMO bcodmo_dataset_782977
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_783366 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_783366.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_783366/ public Dissolved radium isotope activity around Guaymas Basin from samples collected by CTD and HOV Alvin during R/V Atlantis cruise AT42-05 in November 2018 This dataset presents dissolved radium isotope activities around Guaymas Basin.\n\ncdm_data_type = Other\nVARIABLES:\nCollection_Method (unitless)\nAlvin_Dive_Number (unitless)\nCore_Number (unitless)\nCast (unitless)\ndepth (m)\nDepth_cmbsf (Depth, centimeters below seafloor (cmbsf))\ntime (Date Time, seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\nSample_Volume (liters (L))\nRa223_Activity (dpm/100L)\nRa223_Unc (dpm/100L)\nRa224_Activity (dpm/100L)\nRa224_Unc (dpm/100L)\nRa226_Activity (dpm/100L)\nRa226_Unc (dpm/100L)\nRa228_Activity (dpm/100L)\nRa228_Unc (dpm/100L)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_783366_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_783366/index.htmlTable https://www.bco-dmo.org/dataset/783366 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_783366.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_783366&showErrors=false&email= BCO-DMO bcodmo_dataset_783366
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_738833 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_738833.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_738833/ public Experimental observations of radionuclide uptake by colloidal and particulate humic acids obtained from 14 soils collected worldwide The uptake and binding of six particle-reactive and/or redox-sensitive radionuclides (210Pb, 234Th, 7Be, 59Fe, 237Np and 233Pa) with different organic functionalities of three size fractions.\n\ncdm_data_type = Other\nVARIABLES:\nNo (unitless)\nHA_ID (unitless)\nSite (unitless)\nSoil_Order (unitless)\nLand_use (unitless)\nSample_ID (unitless)\npart_210Pb (Part 210 Pb, unitless)\npart_234Th (Part 234 Th, unitless)\npart_7Be (Part 7 Be, unitless)\npart_59Fe (Part 59 Fe, unitless)\npart_237Np (Part 237 Np, unitless)\npart_233Pa (Part 233 Pa, unitless)\ncol_210Pb (Col 210 Pb, unitless)\ncol_234Th (Col 234 Th, unitless)\ncol_7Be (Col 7 Be, unitless)\ncol_59Fe (Col 59 Fe, unitless)\ncol_237Np (Col 237 Np, unitless)\ncol_233Pa (Col 233 Pa, unitless)\nlogKd_210Pb (Log Kd 210 Pb, unitless)\nlogKd_234Th (Log Kd 234 Th, unitless)\nlogKd_7Be (Log Kd 7 Be, unitless)\nlogKd_59Fe (Log Kd 59 Fe, unitless)\nlogKd_237Np (Log Kd 237 Np, unitless)\nlogKd_233Pa (Log Kd 233 Pa, unitless)\nlogKdc_210Pb (Log Kdc 210 Pb, unitless)\nlogKdc_234Th (Log Kdc 234 Th, unitless)\n... (12 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_738833_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_738833/index.htmlTable https://www.bco-dmo.org/dataset/738833 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_738833.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_738833&showErrors=false&email= BCO-DMO bcodmo_dataset_738833
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3519.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3519 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3519.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_3519/ public ODF bottle data along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) ODF bottle data along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010.\n\ncdm_data_type = Other\nVARIABLES:\nEXPOCODE (text)\nSECT_ID (text)\nSTNNBR (integer)\nCASTNO (integer)\nGEOTRC_EVENTNO (integer)\nDATE (unitless)\ntime2 (TIME, unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nGEOTRC_SAMPNO (integer)\nSAMPNO (integer)\nBTLNBR (text)\nBTLNBR_FLAT_W (integer)\nBTO_DATE (unitless)\nBTL_TIME (unitless)\nBTL_LAT (decimal degrees)\nBTL_LON (decimal degrees)\nBTMDEPTH (meters, corrected)\nCTDPRS (decibars)\ndepth (CTDDEPTH, m)\nCTDTMP (ITS-90)\nCTDSAL (PSS-78)\nCTDSAL_FLAG_W (integer)\nSALNTY (PSS-78)\nSALNTY_FLAG_W (integer)\nCTDOXY (umol/kg)\n... (143 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_3519_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_3519/index.htmlTable https://www.bco-dmo.org/dataset/3519 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_3519.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_3519&showErrors=false&email= BCO-DMO bcodmo_dataset_3519
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_764664 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_764664.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_764664/ public Partition coefficient of 234Th, 233Pa, 210Pb, 210Po, and 7Be 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 techniques.\n\ncdm_data_type = Other\nVARIABLES:\nParticle_type (unitless)\nBe (kilogram per liter (kg/L))\nBe_sd (kilogram per liter (kg/L))\nPa (kilogram per liter (kg/L))\nPa_sd (kilogram per liter (kg/L))\nTh (kilogram per liter (kg/L))\nTh_sd (kilogram per liter (kg/L))\nPo (kilogram per liter (kg/L))\nPo_sd (kilogram per liter (kg/L))\nPb (kilogram per liter (kg/L))\nPb_sd (kilogram per liter (kg/L))\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_764664_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_764664/index.htmlTable https://www.bco-dmo.org/dataset/764664 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_764664.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_764664&showErrors=false&email= BCO-DMO bcodmo_dataset_764664
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_718440.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_718440 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_718440.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_718440/ public Radium and thorium isotopes measured in the Western Arctic as part of the 2015 US GEOTRACES Arctic Cruise on the USCGC Healy (HLY1502) from August to October 2015 Radium and thorium isotopes measured in the Western Arctic as part of the 2015 US GEOTRACES Arctic Cruise on the USCGC Healy (HLY1502) from August to October 2015.\n\ncdm_data_type = Other\nVARIABLES:\nCruise_ID (unitless)\nGEOTRC_CASTNO (unitless)\nGEOTRC_INSTR (unitless)\nStation_ID (unitless)\nStart_Date_UTC (unitless)\nStart_Time_UTC (unitless)\ntime (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)\nEnd_Date_UTC (unitless)\nEnd_Time_UTC (unitless)\nEnd_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nEnd_Latitude (Latitude, degrees North)\nEnd_Longitude (Longitude, degrees East)\nEvent_ID (unitless)\nSample_ID (unitless)\ndepth (Sample Depth, m)\nRa_226_D_CONC_PUMP_tmldld (mBq/kg)\nSD1_Ra_226_D_CONC_PUMP_tmldld (mBq/kg)\nFlag_Ra_226_D_CONC_PUMP_tmldld (unitless)\nRa_228_D_CONC_PUMP_5i7kz7 (mBq/kg)\nSD1_Ra_228_D_CONC_PUMP_5i7kz7 (mBq/kg)\nFlag_Ra_228_D_CONC_PUMP_5i7kz7 (unitless)\nRa_224_D_CONC_PUMP_ryelyc (mBq/kg)\nSD1_Ra_224_D_CONC_PUMP_ryelyc (mBq/kg)\nFlag_Ra_224_D_CONC_PUMP_ryelyc (unitless)\n... (12 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_718440_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_718440/index.htmlTable https://www.bco-dmo.org/dataset/718440 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_718440.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_718440&showErrors=false&email= BCO-DMO bcodmo_dataset_718440
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_753837 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_753837.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_753837/ public Radium isotope measurements from CTD and underway water samples from the R/V Endeavor from 2018-05-06 to 2018-05-29 Radium isotope (223Ra, 224Ra, and 226Ra) measurements from CTD and underway water samples.\n\ncdm_data_type = Other\nVARIABLES:\nU_or_C (unitless)\nStation (unitless)\nCast (unitless)\nDate (unitless)\ntime2 (Time, unitless)\ntime (Date Time, seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (m)\nSalinity (Sea Water Practical Salinity, unitless)\nSample_Volume (liters (L))\nRa223_Activity (dpm/100L)\nRa223_Unc (dpm/100L)\nXS_Ra224_Activity (dpm/100L)\nXS_Ra224_Unc (dpm/100L)\nRa226_Activity (dpm/100L)\nRa226_Unc (dpm/100L)\nComments (unitless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_753837_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_753837/index.htmlTable https://www.bco-dmo.org/dataset/753837 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_753837.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_753837&showErrors=false&email= BCO-DMO bcodmo_dataset_753837
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782858 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782858.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_782858/ public Sedimentary radium isotope activity around Guaymas Basin from samples collected by HOV Alvin during R/V Atlantis cruise AT37-06 in December 2016 This dataset presents sedimentary radium isotope activities around Guaymas Basin.\n\ncdm_data_type = Other\nVARIABLES:\nAlivn_Dive_Num (unitless)\nCore_Num (unitless)\nDepth_Below_SWI (Depth, centimeters (cm))\ntime (Date Time, seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\nFilter_Mass (grams (g))\nRa224_Activity (dpm/g)\nRa224_Unc (dpm/g)\nTh228_Activity (dpm/g)\nTh228_Unc (dpm/g)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_782858_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_782858/index.htmlTable https://www.bco-dmo.org/dataset/782858 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_782858.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_782858&showErrors=false&email= BCO-DMO bcodmo_dataset_782858
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3836.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3836 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3836.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_3836/ public Water-column total Thorium-234 and Uranium-238 from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) Water-column total Th-234 with 4 L method and U-238 from U-salinity relationship from the 2010 and 2011 U.S. GEOTRACES cruises.\n\ncdm_data_type = Other\nVARIABLES:\ncruise_id (text)\nstation_GEOTRC (unitless)\ncruise_part (text)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (m)\ndepth_n (Depth, meters)\ndepth_GEOTRC_CTD (Depth, meters)\nevent (unitless)\nevent_GEOTRC (unitless)\ncast_GEOTRC (unitless)\nsample_GEOTRC (unitless)\nsample_bottle_GEOTRC (unitless)\nbottle (unitless)\nbottle_GEOTRC (unitless)\nmonth_gmt (unitless)\nday_gmt (unitless)\nyear (unitless)\ntime_gmt (unitless)\nU238 (dpm/Liter)\nU238_unc (dpm/Liter)\nTh234_tot (dpm/Liter)\nTh_234_tot_unc (dpm/Liter)\nq_flag (unitless)\ntime (Cast ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)\nBTL_ISO_DateTime_UTC (BTL ISO Date Time UTC, unitless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_3836_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_3836/index.htmlTable https://www.bco-dmo.org/dataset/3836 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_3836.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_3836&showErrors=false&email= BCO-DMO bcodmo_dataset_3836

 
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