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     data   graph     files  public Experimental observations of radionuclide uptake by colloidal and particulate humic acids
obtained from 14 soils collected worldwide
   ?     I   M   background (external link) RSS BCO-DMO bcodmo_dataset_738833

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String Basically, the humic acids (HAs) from different soils were isolated and
further purified according to an alkaline extraction method from the
International Humic Substance Society (IHSS) (Xu et al., 2011). Briefly, the
dried soil was pre-treated with a 1 M HCl solution to separate the supernatant
(i.e., fulvic acid) from the soil, followed by the addition of 0.1 M KOH under
N2 purging and 0.3 M K+, as KCl. Then, the supernatant was acidified to pH of
1.0 using 6 M HCl to precipitate HAs, which were pelleted by centrifugation
and then suspended in a 0.1 M HCl/0.3 M HF solution overnight for five times
to minimize ash content. After HF digestion, Milli-Q water was used to wash HA
with the purpose of minimizing ions. HA characterization data were previously
reported elsewhere (Fujitake et al., 2012) and on IHSS website ([http://humic-
substances.org/13c-nmr-estimates-of-carbon-distribution-in-...](\\"http
://humic-substances.org/13c-nmr-estimates-of-carbon-distribution-in-ihss-
samples/\\")).\u00a0

The HA-groundwater suspension batch experiments were conducted basically
similar to a previously reported procedure (Xu et al., 2014). In brief, 5-6 mg
of the purified HAs were pre-equilibrated in artificial groundwater in the
centrifuge tubes for 48 h at room temperature (20 \u00baC) to reach the
dissolution equilibrium, since the HAs were extraceted under pH < 1 but the pH
of artificial groundwater is 5.5. Then, ~50 Bq of each gamma emitting
radionuclide, including 234Th, 237Np-233Pa, 210Pb, 7Be and 59Fe was added to
the HA-groundwater slurry to a final volume of 4 mL. The radiolabeled HA-
groundwater slurry was then mixed continuously for 7 days in the dark with an
end-over-end mixer to ensure that quasi-equilibrium was attained15. After one-
week period, particulate (>0.45 \u00b5m), colloidal (3 kDa to 0.45 \u00b5m),
and truly dissolved (<3 kDa) phases were size fractionationated by using 0.45
\u00b5m centrifugal filter tubes followed by ultrafiltration with 3 kDa
Microsep centrifugal filter tubes (Millipore). Each fraction was collected for
the measurement of radionuclide activity and organic matter concentrations.
All the size fractions, including the particulate, colloidal and truly
dissolved phases were corrected to the same volume and geometry for the
counting of 234Th, 233Pa, 237Np, 210Pb, 7Be and 59Fe activity concentrations
by a Canberra ultrahigh purity germanium well gamma detector.

Concentrations of organic carbon and nitrogen in the colloidal and truly
dissolved fractions were determined using a Shimadzu TOC-L analyzer. The
organic carbon and nitrogen concentrations in the particulate phase of the HA-
groundwater suspension were calculated as the difference between the total
carbon/nitrogen contents of the added HAs and the sum of colloidal and truly
dissolved phases.\u00a0
attribute NC_GLOBAL awards_0_award_nid String 735995
attribute NC_GLOBAL awards_0_award_number String OCE-1356453
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1356453 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String Dr Henrietta N Edmonds
attribute NC_GLOBAL awards_0_program_manager_nid String 51517
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Radionuclide uptake by colloidal and particulate humic acids obtained from 14 soils collected worldwide
PI: Peter H. Santschi
Version: 2018-05-15
Notes: "-" denotes data not available due to the undetectable activity in particulate (>0.45 um) or truly dissolved phases (<3 kDa).
"nd" indicates AVG and STD were not computed for those observations
"AVG" = average
"STD" = standard deviation
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.2d 13 Jun 2019
attribute NC_GLOBAL date_created String 2018-06-19T14:30:06Z
attribute NC_GLOBAL date_modified String 2019-04-01T16:23:56Z
attribute NC_GLOBAL defaultDataQuery String &time
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.738833.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/738833 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Shimadzu TOC-L
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Concentrations of organic carbon and nitrogen in the colloidal and truly dissolved fractions were determined using a Shimadzu TOC-L analyzer.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 739032
attribute NC_GLOBAL instruments_0_description String A Shimadzu TOC-L Analyzer measures DOC by high temperature combustion method.

Developed by Shimadzu, the 680 degree�C combustion catalytic oxidation method is now used worldwide. One of its most important features is the capacity to efficiently oxidize hard-to-decompose organic compounds, including insoluble and macromolecular organic compounds. The 680 degree�C combustion catalytic oxidation method has been adopted for the TOC-L series.

http://www.shimadzu.com/an/toc/lab/toc-l2.html
attribute NC_GLOBAL instruments_0_instrument_external_identifier String http://onto.nerc.ac.uk/CAST/124.html (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Shimadzu TOC-L Analyzer
attribute NC_GLOBAL instruments_0_instrument_nid String 527277
attribute NC_GLOBAL instruments_0_supplied_name String Shimadzu TOC-L analyzer
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Beckman Coulter Allegra X-12 centrifuge
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 738844
attribute NC_GLOBAL instruments_1_description String A machine with a rapidly rotating container that applies centrifugal force to its contents, typically to separate fluids of different densities (e.g., cream from milk) or liquids from solids.
attribute NC_GLOBAL instruments_1_instrument_name String Centrifuge
attribute NC_GLOBAL instruments_1_instrument_nid String 629890
attribute NC_GLOBAL instruments_1_supplied_name String Beckman Coulter Allegra X-12 centrifuge
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Canberra ultrahigh purity germanium well gamma detector Model GCW3024
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 738841
attribute NC_GLOBAL instruments_2_description String Instruments measuring the relative levels of electromagnetic radiation of different wavelengths in the gamma-ray waveband.
attribute NC_GLOBAL instruments_2_instrument_name String Gamma Ray Spectrometer
attribute NC_GLOBAL instruments_2_instrument_nid String 670659
attribute NC_GLOBAL instruments_2_supplied_name String Canberra ultrahigh purity germanium well gamma detector
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, carbon, chemical, coc, col, col_210Pb, col_233Pa, col_234Th, col_237Np, col_59Fe, col_7Be, color, con, data, dataset, dmo, erddap, HA_ID, identifier, kdc, land, Land_use, log, logKd_210Pb, logKd_233Pa, logKd_234Th, logKd_237Np, logKd_59Fe, logKd_7Be, logKdc_210Pb, logKdc_233Pa, logKdc_234Th, logKdc_237Np, logKdc_59Fe, logKdc_7Be, management, ocean, ocean color, oceanography, office, order, organic, part, part_210Pb, part_233Pa, part_234Th, part_237Np, part_59Fe, part_7Be, particulate, pcnt, pcnt_COC, pcnt_CON, pcnt_PN, pcnt_POC, poc, preliminary, sample, Sample_ID, site, soil, Soil_Order, soils, use
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/738833 (external link)
attribute NC_GLOBAL param_mapping String {'738833': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/738833/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Texas A&M, Galveston
attribute NC_GLOBAL people_0_affiliation_acronym String TAMUG
attribute NC_GLOBAL people_0_person_name String Peter Santschi
attribute NC_GLOBAL people_0_person_nid String 735998
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Texas A&M, Galveston
attribute NC_GLOBAL people_1_affiliation_acronym String TAMUG
attribute NC_GLOBAL people_1_person_name String Antonietta Quigg
attribute NC_GLOBAL people_1_person_nid String 736000
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Texas A&M, Galveston
attribute NC_GLOBAL people_2_affiliation_acronym String TAMUG
attribute NC_GLOBAL people_2_person_name String Kathleen Schwehr
attribute NC_GLOBAL people_2_person_nid String 736002
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Texas A&M, Galveston
attribute NC_GLOBAL people_3_affiliation_acronym String TAMUG
attribute NC_GLOBAL people_3_person_name String Chen Xu
attribute NC_GLOBAL people_3_person_nid String 736004
attribute NC_GLOBAL people_3_role String Co-Principal Investigator
attribute NC_GLOBAL people_3_role_type String originator
attribute NC_GLOBAL people_4_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_4_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_4_person_name String Mathew Biddle
attribute NC_GLOBAL people_4_person_nid String 708682
attribute NC_GLOBAL people_4_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL project String Biopolymers as carrier phases for selected natural radionuclides (of Th, Pa, Pb, Po, Be) in diatoms and coccolithophores
attribute NC_GLOBAL projects_0_acronym String Biopolymers for radionuclides
attribute NC_GLOBAL projects_0_description String NSF Award Abstract:
Particle-associated natural radioisotopes are transported to the ocean floor mostly via silica and carbonate ballasted particles, allowing their use as tracers for particle transport. Th(IV), Pa (IV,V), Po(IV), Pb(II) and Be(II) radionuclides are important proxies in oceanographic investigations, used for tracing particle and colloid cycling, estimating export fluxes of particulate organic carbon, tracing air-sea exchange, paleoproductivity, and/or ocean circulation in paleoceanographic studies. Even though tracer approaches are considered routine, there are cases where data interpretation or validity has become controversial, largely due to uncertainties about inorganic proxies and organic carrier molecules. Recent studies showed that cleaned diatom frustules and pure silica particles, sorb natural radionuclides to a much lower extent (by 1-2 orders of magnitude) than whole diatom cells (with or without shells). Phytoplankton that build siliceous or calcareous shells, such as the diatoms and coccolithophores, are assembled via bio-mineralization processes using biopolymers as nanoscale templates. These templates could serve as possible carriers for radionuclides and stable metals.
In this project, a research team at the Texas A & M University at Galveston hypothesize that radionuclide sorption is controlled by selective biopolymers that are associated with biogenic opal (diatoms), CaCO3 (coccolithophores) and the attached exopolymeric substances (EPS), rather than to pure mineral phase. To pursue this idea, the major objectives of their research will include separation, identification and molecular-level characterization of the individual biopolymers (e.g., polysaccharides, uronic acids, proteins, hydroquinones, hydroxamate siderophores, etc.) that are responsible for binding different radionuclides (Th, Pa, Pb, Po and Be) attached to cells or in the matrix of biogenic opal or CaCO3 as well as attached EPS mixture, in laboratory grown diatom and coccolithophore cultures. Laboratory-scale radiolabeling experiments will be conducted, and different separation techniques and characterization techniques will be applied.
Intellectual Merit : It is expected that this study will help elucidate the molecular basis of the templated growth of diatoms and coccoliths, EPS and their role in scavenging natural radionuclides in the ocean, and help resolve debates on the oceanographic tracer applications of different natural radioisotopes (230,234Th, 231Pa, 210Po, 210Pb and 7,10Be). The proposed interdisciplinary research project will require instrumental approaches for molecular-level characterization of these radionuclides associated carrier molecules.
Broader Impacts: The results of this study will be relevant for understanding biologically mediated ocean scavenging of radionuclides by diatoms and coccoliths which is important for carbon cycling in the ocean, and will contribute to improved interpretation of data obtained by field studies especially through the GEOTRACES program. This new program will enhance training programs at TAMUG for postdocs, graduate and undergraduate students. Lastly, results will be integrated in college courses and out-reach activities at Texas A&M University, including NSF-REU, Sea Camp, Elder Hostel and exhibits at the local science fair and interaction with its after-school program engaging Grade 9-12 students from groups traditionally underrepresented.
attribute NC_GLOBAL projects_0_end_date String 2018-02
attribute NC_GLOBAL projects_0_name String Biopolymers as carrier phases for selected natural radionuclides (of Th, Pa, Pb, Po, Be) in diatoms and coccolithophores
attribute NC_GLOBAL projects_0_project_nid String 735996
attribute NC_GLOBAL projects_0_start_date String 2014-03
attribute NC_GLOBAL publisher_name String Mathew Biddle
attribute NC_GLOBAL publisher_role String BCO-DMO Data Manager(s)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL summary String 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.
attribute NC_GLOBAL title String Experimental observations of radionuclide uptake by colloidal and particulate humic acids obtained from 14 soils collected worldwide
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5-beta
variable No   byte  
attribute No _FillValue byte 127
attribute No actual_range byte 1, 14
attribute No description String site number
attribute No ioos_category String Unknown
attribute No long_name String No
attribute No units String unitless
variable HA_ID   String  
attribute HA_ID description String Sample description
attribute HA_ID ioos_category String Identifier
attribute HA_ID long_name String HA ID
attribute HA_ID units String unitless
variable Site   String  
attribute Site description String Name of site.
attribute Site ioos_category String Unknown
attribute Site long_name String Site
attribute Site units String unitless
variable Soil_Order   String  
attribute Soil_Order description String Soil Order
attribute Soil_Order ioos_category String Soils
attribute Soil_Order long_name String Soil Order
attribute Soil_Order units String unitless
variable Land_use   String  
attribute Land_use description String Land use description
attribute Land_use ioos_category String Unknown
attribute Land_use long_name String Land Use
attribute Land_use units String unitless
variable Sample_ID   String  
attribute Sample_ID description String Identifier for the sample
attribute Sample_ID ioos_category String Identifier
attribute Sample_ID long_name String Sample ID
attribute Sample_ID units String unitless
variable part_210Pb   byte  
attribute part_210Pb _FillValue byte 127
attribute part_210Pb actual_range byte 9, 98
attribute part_210Pb description String Particulate activity percentage for Lead 210
attribute part_210Pb ioos_category String Unknown
attribute part_210Pb long_name String Part 210 Pb
attribute part_210Pb missing_value byte 99
attribute part_210Pb units String unitless
variable part_234Th   byte  
attribute part_234Th _FillValue byte 127
attribute part_234Th actual_range byte 0, 92
attribute part_234Th description String Particulate activity percentage for Thorium 234
attribute part_234Th ioos_category String Unknown
attribute part_234Th long_name String Part 234 Th
attribute part_234Th units String unitless
variable part_7Be   byte  
attribute part_7Be _FillValue byte 127
attribute part_7Be actual_range byte 10, 100
attribute part_7Be description String Particulate activity percentage for Beryllium 7
attribute part_7Be ioos_category String Unknown
attribute part_7Be long_name String Part 7 Be
attribute part_7Be units String unitless
variable part_59Fe   byte  
attribute part_59Fe _FillValue byte 127
attribute part_59Fe actual_range byte 12, 98
attribute part_59Fe description String Particulate activity percentage for Iron 59
attribute part_59Fe ioos_category String Unknown
attribute part_59Fe long_name String Part 59 Fe
attribute part_59Fe missing_value byte 99
attribute part_59Fe units String unitless
variable part_237Np   byte  
attribute part_237Np _FillValue byte 127
attribute part_237Np actual_range byte 14, 80
attribute part_237Np description String Particulate activity percentage for Neptunium 237
attribute part_237Np ioos_category String Unknown
attribute part_237Np long_name String Part 237 Np
attribute part_237Np units String unitless
variable part_233Pa   byte  
attribute part_233Pa _FillValue byte 127
attribute part_233Pa actual_range byte 12, 94
attribute part_233Pa description String Particulate activity percentage for Protactinium 233
attribute part_233Pa ioos_category String Unknown
attribute part_233Pa long_name String Part 233 Pa
attribute part_233Pa units String unitless
variable col_210Pb   byte  
attribute col_210Pb _FillValue byte 127
attribute col_210Pb actual_range byte 0, 79
attribute col_210Pb description String Colloidal activity percentage for Lead 210
attribute col_210Pb ioos_category String Unknown
attribute col_210Pb long_name String Col 210 Pb
attribute col_210Pb units String unitless
variable col_234Th   byte  
attribute col_234Th _FillValue byte 127
attribute col_234Th actual_range byte 8, 100
attribute col_234Th description String Colloidal activity percentage for Thorium 234
attribute col_234Th ioos_category String Unknown
attribute col_234Th long_name String Col 234 Th
attribute col_234Th units String unitless
variable col_7Be   byte  
attribute col_7Be _FillValue byte 127
attribute col_7Be actual_range byte 0, 69
attribute col_7Be description String Colloidal activity percentage for Beryllium 7
attribute col_7Be ioos_category String Unknown
attribute col_7Be long_name String Col 7 Be
attribute col_7Be units String unitless
variable col_59Fe   byte  
attribute col_59Fe _FillValue byte 127
attribute col_59Fe actual_range byte 1, 79
attribute col_59Fe description String Colloidal activity percentage for Iron 59
attribute col_59Fe ioos_category String Unknown
attribute col_59Fe long_name String Col 59 Fe
attribute col_59Fe units String unitless
variable col_237Np   byte  
attribute col_237Np _FillValue byte 127
attribute col_237Np actual_range byte 11, 78
attribute col_237Np description String Colloidal activity percentage for Neptunium 237
attribute col_237Np ioos_category String Unknown
attribute col_237Np long_name String Col 237 Np
attribute col_237Np units String unitless
variable col_233Pa   byte  
attribute col_233Pa _FillValue byte 127
attribute col_233Pa actual_range byte 5, 49
attribute col_233Pa description String Colloidal activity percentage for Protactinium 233
attribute col_233Pa ioos_category String Unknown
attribute col_233Pa long_name String Col 233 Pa
attribute col_233Pa units String unitless
variable logKd_210Pb   float  
attribute logKd_210Pb _FillValue float NaN
attribute logKd_210Pb actual_range float 0.88, 4.99
attribute logKd_210Pb description String partitioning coefficient (logKd) for Lead 210
attribute logKd_210Pb ioos_category String Unknown
attribute logKd_210Pb long_name String Log Kd 210 Pb
attribute logKd_210Pb units String unitless
variable logKd_234Th   String  
attribute logKd_234Th description String partitioning coefficient (logKd) for Thorium 234
attribute logKd_234Th ioos_category String Unknown
attribute logKd_234Th long_name String Log Kd 234 Th
attribute logKd_234Th units String unitless
variable logKd_7Be   String  
attribute logKd_7Be description String partitioning coefficient (logKd) for Beryllium 7
attribute logKd_7Be ioos_category String Unknown
attribute logKd_7Be long_name String Log Kd 7 Be
attribute logKd_7Be units String unitless
variable logKd_59Fe   float  
attribute logKd_59Fe _FillValue float NaN
attribute logKd_59Fe actual_range float 0.8, 5.03
attribute logKd_59Fe description String partitioning coefficient (logKd) for Iron 59
attribute logKd_59Fe ioos_category String Unknown
attribute logKd_59Fe long_name String Log Kd 59 Fe
attribute logKd_59Fe units String unitless
variable logKd_237Np   float  
attribute logKd_237Np _FillValue float NaN
attribute logKd_237Np actual_range float 0.39, 3.48
attribute logKd_237Np description String partitioning coefficient (logKd) for Neptunium 237
attribute logKd_237Np ioos_category String Unknown
attribute logKd_237Np long_name String Log Kd 237 Np
attribute logKd_237Np units String unitless
variable logKd_233Pa   float  
attribute logKd_233Pa _FillValue float NaN
attribute logKd_233Pa actual_range float 0.31, 4.11
attribute logKd_233Pa description String partitioning coefficient (logKd) for Protactinium 233
attribute logKd_233Pa ioos_category String Unknown
attribute logKd_233Pa long_name String Log Kd 233 Pa
attribute logKd_233Pa units String unitless
variable logKdc_210Pb   float  
attribute logKdc_210Pb _FillValue float NaN
attribute logKdc_210Pb actual_range float 0.6, 5.81
attribute logKdc_210Pb description String partitioning coefficient in colloidal fraction (logKdc) for Lead 210
attribute logKdc_210Pb ioos_category String Unknown
attribute logKdc_210Pb long_name String Log Kdc 210 Pb
attribute logKdc_210Pb units String unitless
variable logKdc_234Th   String  
attribute logKdc_234Th description String partitioning coefficient in colloidal fraction (logKdc) for Thorium 234
attribute logKdc_234Th ioos_category String Unknown
attribute logKdc_234Th long_name String Log Kdc 234 Th
attribute logKdc_234Th units String unitless
variable logKdc_7Be   String  
attribute logKdc_7Be description String partitioning coefficient in colloidal fraction (logKdc) for Beryllium 7
attribute logKdc_7Be ioos_category String Unknown
attribute logKdc_7Be long_name String Log Kdc 7 Be
attribute logKdc_7Be units String unitless
variable logKdc_59Fe   String  
attribute logKdc_59Fe description String partitioning coefficient in colloidal fraction (logKdc) for Iron 59
attribute logKdc_59Fe ioos_category String Unknown
attribute logKdc_59Fe long_name String Log Kdc 59 Fe
attribute logKdc_59Fe units String unitless
variable logKdc_237Np   float  
attribute logKdc_237Np _FillValue float NaN
attribute logKdc_237Np actual_range float 0.63, 5.5
attribute logKdc_237Np description String partitioning coefficient in colloidal fraction (logKdc) for Neptunium 237
attribute logKdc_237Np ioos_category String Unknown
attribute logKdc_237Np long_name String Log Kdc 237 Np
attribute logKdc_237Np units String unitless
variable logKdc_233Pa   String  
attribute logKdc_233Pa description String partitioning coefficient in colloidal fraction (logKdc) for Protactinium 233
attribute logKdc_233Pa ioos_category String Unknown
attribute logKdc_233Pa long_name String Log Kdc 233 Pa
attribute logKdc_233Pa units String unitless
variable POC   short  
attribute POC _FillValue short 32767
attribute POC actual_range short 163, 743
attribute POC description String Concentration of Particulate Organic Carbon (POC) after one week HAs-groundwater resuspension
attribute POC ioos_category String Ocean Color
attribute POC long_name String Particulate Organic Carbon
attribute POC units String miligrams per liter (mg/L)
variable PN   byte  
attribute PN _FillValue byte 127
attribute PN actual_range byte 11, 78
attribute PN description String Concentration of Particulate Nitrogen (PN) after one week HAs-groundwater resuspension
attribute PN ioos_category String Unknown
attribute PN long_name String PN
attribute PN units String miligrams per liter (mg/L)
variable COC   short  
attribute COC _FillValue short 32767
attribute COC actual_range short 45, 532
attribute COC description String Concentration of Colloidal Organic Carbon (COC) after one week HAs-groundwater resuspension
attribute COC ioos_category String Unknown
attribute COC long_name String COC
attribute COC units String miligrams per liter (mg/L)
variable CON   byte  
attribute CON _FillValue byte 127
attribute CON actual_range byte 0, 54
attribute CON description String Concentration of Colloidal Organic Nitrogen (CON) after one week HAs-groundwater resuspension
attribute CON ioos_category String Unknown
attribute CON long_name String CON
attribute CON units String miligrams per liter (mg/L)
variable pcnt_POC   byte  
attribute pcnt_POC _FillValue byte 127
attribute pcnt_POC actual_range byte 23, 94
attribute pcnt_POC description String Percentage of Particulate Organic Carbon (POC) after one week HAs-groundwater resuspension
attribute pcnt_POC ioos_category String Ocean Color
attribute pcnt_POC long_name String Pcnt POC
attribute pcnt_POC units String unitless
variable pcnt_PN   byte  
attribute pcnt_PN _FillValue byte 127
attribute pcnt_PN actual_range byte 26, 100
attribute pcnt_PN description String Percentage of Particulate Nitrogen (PN) after one week HAs-groundwater resuspension
attribute pcnt_PN ioos_category String Unknown
attribute pcnt_PN long_name String PCNT PN
attribute pcnt_PN units String unitless
variable pcnt_COC   byte  
attribute pcnt_COC _FillValue byte 127
attribute pcnt_COC actual_range byte 6, 77
attribute pcnt_COC description String Percentage of Colloidal Organic Carbon (COC) after one week HAs-groundwater resuspension
attribute pcnt_COC ioos_category String Unknown
attribute pcnt_COC long_name String Pcnt COC
attribute pcnt_COC units String unitless
variable pcnt_CON   byte  
attribute pcnt_CON _FillValue byte 127
attribute pcnt_CON actual_range byte 0, 74
attribute pcnt_CON description String Percentage of Colloidal Organic Nitrogen (CON) after one week HAs-groundwater resuspension
attribute pcnt_CON ioos_category String Unknown
attribute pcnt_CON long_name String Pcnt CON
attribute pcnt_CON units String unitless

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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