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     data   graph     files  public [M. jannaschii high/low H2: isotopes and fractionation factors] - Carbon isotopic
compositions and fractionation factors of M. jannaschii in high and low hydrogen (H2)
environments (Bioenergetic influences upon carbon flow in alkaliphilic sulfate-reducing
microbial populations with relevance to the subsurface biosphere at the Lost City Hydrothermal
Field)
   ?        I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_812240

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 Isolation and isotopic analysis of squalenoids:
Cell pellets were freeze-dried overnight, ground with a clean spatula, and
extracted three times by sonication in a centrifuge tube filled with 50 mL of
3:1 dichloromethane:methanol (DCM:MeOH). All glassware was combusted overnight
at 500\u00b0C to remove organics prior to use. After sonication, the extracts
were spun in a centrifuge at 125 g for 15 min and the supernatant was decanted
to a separate vial. All extracts were combined and the solvent was evaporated
to dryness in a rotary evaporator.\u00a0 A maximum of 2 mL of 9:1 DCM:MeOH was
added to dissolve the total extract that was then passed over Na2SO4 to remove
water. The water-free extract was then separated into different fractions over
SepraTM NH2 bulk-packing (P/N 1001711653 572122 \u2013 U) silica column by
eluting with solvents of increasing polarity (F1 = 5 mL of hexane, F2 = 6 mL
of 3:1 hexane:DCM, F3 = 7 mL of 9:1 DCM:acetone, F4 = 8 mL of 4% formic acid
in DCM). The apolar fraction (F1) was dried under N2, then re-dissolved in 50
\u00b5L of hexane for identification.

The lipids in the apolar fraction were identified and quantified using an
Agilent Technologies 5975 inert XL Mass Selective Detector after separation on
an Agilent J&W GC HP-5MS UI capillary column (30 m \u00d7 0.25 mm i.d., 0.25
\u00b5m film thickness, P/N 19091S \u2013 433UIE) using He as the carrier gas.
Samples were injected in pulse splitless mode. The GC oven was from an initial
temperature of 70\u00b0C, then heated to 150\u00b0C at 15\u00b0C per min, then
to 300\u00b0C at 5\u00b0C per min. Peaks were quantified by comparison to a
5-point standard curve of a C7-C30 alkane series (P/N 49451 \u2013 U, Sigma
Aldrich). The isotopic composition of biomarkers in the apolar fraction was
determined on a Thermo Scientific Gas Chromatograph-IsolinkII-Isotope Ratio
Mass Spectrometer (GC-IsolinkII-IRMS) equipped with an Agilent DB-5 fused
silica column (30 m \u00d7 0.25 mm i.d., 0.25 \u00b5m film thickness) with He
as the carrier gas.

Isolation, characterization, and isotopic analysis of amino acids:
Pelleted cells were hydrolyzed with 6 M HCl (Ultrapure grade) with 1% of 11
mM ascorbic acid under N2 at 110\u00b0C for 20 h (Henrichs, 1991). After
cooling, hydrolyzed amino acids were spiked with internal standard norvaline
and derivatized with acidified isopropanol and acetyl chloride for 1 h at
110\u00b0C (Silfer et al., 1991). The samples then reacted at 110\u00b0C for 1
h on a hot plate. They were then esterified with trifluoroacetic anhydride
(TFAA) for 10 min at 110\u00b0C for 10 min. The resulting derivatives were
dissolved in dichloromethane. The isotopic signatures of derivatized amino
acids were determined by GC-IsolinkII-IRMS
attribute NC_GLOBAL awards_0_award_nid String 554980
attribute NC_GLOBAL awards_0_award_number String OCE-0939564
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=0939564 (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 David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String M. jannaschii high/low H2: isotopes and fractionation factors
PI: S. Lang (USC-Columbia)
version date: 20200-5-25
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 2.3 19 Dec 2019
attribute NC_GLOBAL dataset_current_state String Final and no updates
attribute NC_GLOBAL date_created String 2020-05-20T21:48:29Z
attribute NC_GLOBAL date_modified String 2020-07-09T13:22:31Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.26008/1912/bco-dmo.812240.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/812240 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String IR Mass Spec
attribute NC_GLOBAL instruments_0_dataset_instrument_description String For measuring isotopic composition of dissolved inorganic carbon.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 812251
attribute NC_GLOBAL instruments_0_description String The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB16/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Isotope-ratio Mass Spectrometer
attribute NC_GLOBAL instruments_0_instrument_nid String 469
attribute NC_GLOBAL instruments_0_supplied_name String Thermo Scientific GasBench- Delta V Isotope Radio Mass Spectrometer
attribute NC_GLOBAL instruments_1_dataset_instrument_description String For or identification and abundance of carbon isotopes. Agilent Technologies 5975 inert XL Mass Selective Detector after separation on an Agilent J&W GC HP-5MS UI capillary column (30 m × 0.25 mm i.d., 0.25 µm film thickness, P/N 19091S – 433UIE)
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 812249
attribute NC_GLOBAL instruments_1_description String Instruments separating gases, volatile substances or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay by a mass spectrometer.
attribute NC_GLOBAL instruments_1_instrument_name String Gas Chromatograph Mass Spectrometer
attribute NC_GLOBAL instruments_1_instrument_nid String 812252
attribute NC_GLOBAL instruments_1_supplied_name String Gas Chromatograph Mass Spectrometer
attribute NC_GLOBAL instruments_2_dataset_instrument_description String For measuring isotopic composition of biomarkers, including amino acid and lipids: Thermo Scientific Trace 1310 Gas Chromatograph-IsolinkII-Delta V Isotope Ratio Mass Spectrometer equipped with an Agilent DB-5 fused silica column (30 m × 0.25 mm i.d., 0.25 µm film thickness) and a Gerstel CIS – 6 inlet.
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 812250
attribute NC_GLOBAL instruments_2_description String Instruments separating gases, volatile substances or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay by a mass spectrometer.
attribute NC_GLOBAL instruments_2_instrument_name String Gas Chromatograph Mass Spectrometer
attribute NC_GLOBAL instruments_2_instrument_nid String 812252
attribute NC_GLOBAL instruments_2_supplied_name String Thermo Scientific Trace 1310 Gas Chromatograph-IsolinkII-Delta V Isotope Ratio Mass Spectrometer
attribute NC_GLOBAL keywords String ala, average, bco, bco-dmo, biological, carbon, carbon dioxide, ch4, chemical, co2, culture, Culture_ID, d13, d13C_ppt_Ala, d13C_ppt_Glu, d13C_ppt_Gly, d13C_ppt_Iso, d13C_ppt_Leu, d13C_ppt_Phe, d13C_ppt_Pro, d13C_ppt_Ser, d13C_ppt_Sq_3, d13C_ppt_Sq_4, d13C_ppt_Sq_5, d13C_ppt_Sq_6, d13C_ppt_Thr, d13C_ppt_Val, data, dataset, dic, DIC_mM_Tf, DIC_mM_To, dioxide, dmo, erddap, experiment, factor, fractionation, Fractionation_factor_ppt_eCO2_AA, Fractionation_factor_ppt_eCO2_B, Fractionation_factor_ppt_eCO2_CH4, Fractionation_factor_ppt_eCO2_squalenoids, glu, gly, iso, leu, management, oceanography, office, phe, ppt, preliminary, pro, ser, squalenoids, tfaa, TFAA_uM_Tf, TFAA_uM_To, thaa, THAA_uM_Tf, THAA_uM_To, thr, u, val, weighted, Weighted_Avg_d13C_THAA_ppt, Weighted_Avg_ppt_d13C_Sq
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/812240/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/812240 (external link)
attribute NC_GLOBAL param_mapping String {'812240': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/812240/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of South Carolina at Columbia
attribute NC_GLOBAL people_0_person_name String Susan Q. Lang
attribute NC_GLOBAL people_0_person_nid String 658607
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 Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Nancy Copley
attribute NC_GLOBAL people_1_person_nid String 50396
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL project String Carbon flow through SRB
attribute NC_GLOBAL projects_0_acronym String Carbon flow through SRB
attribute NC_GLOBAL projects_0_description String Project description from C-DEBI:
The microbial biosphere in serpentinizing subseafloor rocks is globally significant. Tantalizing evidence from studies of the Lost City Hydrothermal Field and continental ophiolites indicates that hydrogendriven microbial metabolisms prevails under the highly reducing, high pH conditions that characterize these environments. Interest in these processes is evident from an upcoming cruise to the Atlantis Massif in Fall 2015 to obtain drill cores in the vicinity of the Lost City Hydrothermal Field (IODP Expedition #357; both PIs were proponents of the IODP proposal and have applied as shipboard scientists). The PIs and colleagues have made headway over the last decade in identifying the key organisms and metabolisms present at the LCHF, and in constraining the sources and fates of carbon compounds. The linkages between geology and biology remain enigmatic, however, because of the precipitation of inorganic carbon at high pHs and overlapping biogenic and abiogenic carbon sources. We propose here to investigate the influence of free energy availability by sulfate reduction in resource utilization and carbon flow by model alkaliphilic prokaryotes. The laboratory approach using a model system will inform shipboard experiments with fresh samples from the AM, and the potential characterization of new organisms from serpentinizing terrains.
This project was funded by a C-DEBI Research Grant
attribute NC_GLOBAL projects_0_end_date String 2016-03
attribute NC_GLOBAL projects_0_geolocation String Atlantis Massif, 30 8'N, 42 8'W
attribute NC_GLOBAL projects_0_name String Bioenergetic influences upon carbon flow in alkaliphilic sulfate-reducing microbial populations with relevance to the subsurface biosphere at the Lost City Hydrothermal Field
attribute NC_GLOBAL projects_0_project_nid String 661802
attribute NC_GLOBAL projects_0_start_date String 2015-04
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Carbon isotopic compositions and fractionation factors of amino acids and squalenoid lipids in Methanocaldococcus jannaschii in high and low hydrogen (H2) environments.
attribute NC_GLOBAL title String [M. jannaschii high/low H2: isotopes and fractionation factors] - Carbon isotopic compositions and fractionation factors of M. jannaschii in high and low hydrogen (H2) environments (Bioenergetic influences upon carbon flow in alkaliphilic sulfate-reducing microbial populations with relevance to the subsurface biosphere at the Lost City Hydrothermal Field)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5
variable Experiment   String  
attribute Experiment bcodmo_name String treatment
attribute Experiment description String Experiment description: either high (abundant) or low (limited) hydrogen
attribute Experiment long_name String Experiment
attribute Experiment units String unitless
variable Culture_ID   String  
attribute Culture_ID bcodmo_name String sample
attribute Culture_ID description String culture identifier
attribute Culture_ID long_name String Culture ID
attribute Culture_ID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute Culture_ID units String unitless
variable d13C_ppt_Ala   String  
attribute d13C_ppt_Ala bcodmo_name String amino_conc
attribute d13C_ppt_Ala description String 13C isotopic ratio of alanine
attribute d13C_ppt_Ala long_name String D13 C Ppt Ala
attribute d13C_ppt_Ala units String parts per thousand (ppt)
variable d13C_ppt_Gly   float  
attribute d13C_ppt_Gly _FillValue float NaN
attribute d13C_ppt_Gly actual_range float -62.3, -51.8
attribute d13C_ppt_Gly bcodmo_name String amino_conc
attribute d13C_ppt_Gly description String 13C isotopic ratio of glycine
attribute d13C_ppt_Gly long_name String D13 C PPT GLY
attribute d13C_ppt_Gly units String parts per thousand (ppt)
variable d13C_ppt_Thr   float  
attribute d13C_ppt_Thr _FillValue float NaN
attribute d13C_ppt_Thr actual_range float -58.8, -40.5
attribute d13C_ppt_Thr bcodmo_name String amino_conc
attribute d13C_ppt_Thr description String 13C isotopic ratio of threonine
attribute d13C_ppt_Thr long_name String D13 C PPT THR
attribute d13C_ppt_Thr units String parts per thousand (ppt)
variable d13C_ppt_Ser   String  
attribute d13C_ppt_Ser bcodmo_name String amino_conc
attribute d13C_ppt_Ser description String 13C isotopic ratio of serine
attribute d13C_ppt_Ser long_name String D13 C Ppt Ser
attribute d13C_ppt_Ser units String parts per thousand (ppt)
variable d13C_ppt_Val   float  
attribute d13C_ppt_Val _FillValue float NaN
attribute d13C_ppt_Val actual_range float -68.1, -57.1
attribute d13C_ppt_Val bcodmo_name String amino_conc
attribute d13C_ppt_Val description String 13C isotopic ratio of valine
attribute d13C_ppt_Val long_name String D13 C Ppt Val
attribute d13C_ppt_Val units String parts per thousand (ppt)
variable d13C_ppt_Leu   float  
attribute d13C_ppt_Leu _FillValue float NaN
attribute d13C_ppt_Leu actual_range float -71.4, -58.9
attribute d13C_ppt_Leu bcodmo_name String amino_conc
attribute d13C_ppt_Leu description String 13C isotopic ratio of leucine
attribute d13C_ppt_Leu long_name String D13 C Ppt Leu
attribute d13C_ppt_Leu units String parts per thousand (ppt)
variable d13C_ppt_Iso   float  
attribute d13C_ppt_Iso _FillValue float NaN
attribute d13C_ppt_Iso actual_range float -68.5, -57.5
attribute d13C_ppt_Iso bcodmo_name String amino_conc
attribute d13C_ppt_Iso description String 13C isotopic ratio of isoleucine
attribute d13C_ppt_Iso long_name String D13 C Ppt Iso
attribute d13C_ppt_Iso units String parts per thousand (ppt)
variable d13C_ppt_Pro   float  
attribute d13C_ppt_Pro _FillValue float NaN
attribute d13C_ppt_Pro actual_range float -58.8, -51.8
attribute d13C_ppt_Pro bcodmo_name String amino_conc
attribute d13C_ppt_Pro description String 13C isotopic ratio of proline
attribute d13C_ppt_Pro long_name String D13 C Ppt Pro
attribute d13C_ppt_Pro units String parts per thousand (ppt)
variable d13C_ppt_Glu   float  
attribute d13C_ppt_Glu _FillValue float NaN
attribute d13C_ppt_Glu actual_range float -51.4, -41.5
attribute d13C_ppt_Glu bcodmo_name String amino_conc
attribute d13C_ppt_Glu description String 13C isotopic ratio of glu
attribute d13C_ppt_Glu long_name String D13 C Ppt Glu
attribute d13C_ppt_Glu units String parts per thousand (ppt)
variable d13C_ppt_Phe   float  
attribute d13C_ppt_Phe _FillValue float NaN
attribute d13C_ppt_Phe actual_range float -59.7, -50.4
attribute d13C_ppt_Phe bcodmo_name String amino_conc
attribute d13C_ppt_Phe description String 13C isotopic ratio of phenylalanine
attribute d13C_ppt_Phe long_name String D13 C Ppt Phe
attribute d13C_ppt_Phe units String parts per thousand (ppt)
variable Weighted_Avg_d13C_THAA_ppt   float  
attribute Weighted_Avg_d13C_THAA_ppt _FillValue float NaN
attribute Weighted_Avg_d13C_THAA_ppt actual_range float -65.1, -54.2
attribute Weighted_Avg_d13C_THAA_ppt bcodmo_name String amino_conc
attribute Weighted_Avg_d13C_THAA_ppt description String Weighted isotopic ratio of each amino acid as a toal
attribute Weighted_Avg_d13C_THAA_ppt long_name String Weighted Avg D13 C THAA Ppt
attribute Weighted_Avg_d13C_THAA_ppt units String parts per thousand (ppt)
variable d13C_ppt_Sq_3   String  
attribute d13C_ppt_Sq_3 bcodmo_name String lipids_biota
attribute d13C_ppt_Sq_3 description String 13C isotopic ratio of squalenoid with three double bonds
attribute d13C_ppt_Sq_3 long_name String D13 C PPT SQ 3
attribute d13C_ppt_Sq_3 units String parts per thousand (ppt)
variable d13C_ppt_Sq_4   float  
attribute d13C_ppt_Sq_4 _FillValue float NaN
attribute d13C_ppt_Sq_4 actual_range float -72.8, -57.6
attribute d13C_ppt_Sq_4 bcodmo_name String lipids_biota
attribute d13C_ppt_Sq_4 description String 13C isotopic ratio of squalenoid with four double bonds
attribute d13C_ppt_Sq_4 long_name String D13 C PPT SQ 4
attribute d13C_ppt_Sq_4 units String parts per thousand (ppt)
variable d13C_ppt_Sq_5   float  
attribute d13C_ppt_Sq_5 _FillValue float NaN
attribute d13C_ppt_Sq_5 actual_range float -69.7, -56.7
attribute d13C_ppt_Sq_5 bcodmo_name String lipids_biota
attribute d13C_ppt_Sq_5 description String 13C isotopic ratio of squalenoid with five double bonds
attribute d13C_ppt_Sq_5 long_name String D13 C PPT SQ 5
attribute d13C_ppt_Sq_5 units String parts per thousand (ppt)
variable d13C_ppt_Sq_6   String  
attribute d13C_ppt_Sq_6 bcodmo_name String lipids_biota
attribute d13C_ppt_Sq_6 description String 13C isotopic ratio of squalene
attribute d13C_ppt_Sq_6 long_name String D13 C PPT SQ 6
attribute d13C_ppt_Sq_6 units String parts per thousand (ppt)
variable Weighted_Avg_ppt_d13C_Sq   float  
attribute Weighted_Avg_ppt_d13C_Sq _FillValue float NaN
attribute Weighted_Avg_ppt_d13C_Sq actual_range float -71.0, -57.0
attribute Weighted_Avg_ppt_d13C_Sq bcodmo_name String lipids_biota
attribute Weighted_Avg_ppt_d13C_Sq description String weighted average of the isotopic composition of squalenoids
attribute Weighted_Avg_ppt_d13C_Sq long_name String Weighted Avg Ppt D13 C Sq
attribute Weighted_Avg_ppt_d13C_Sq units String parts per thousand (ppt)
variable DIC_mM_To   float  
attribute DIC_mM_To _FillValue float NaN
attribute DIC_mM_To actual_range float 3.7, 4.4
attribute DIC_mM_To bcodmo_name String DIC
attribute DIC_mM_To description String Concentration of dissolved inorganic carbon at the start of the experiment
attribute DIC_mM_To long_name String DIC M M To
attribute DIC_mM_To units String milliMolar (mM)
variable DIC_mM_Tf   float  
attribute DIC_mM_Tf _FillValue float NaN
attribute DIC_mM_Tf actual_range float 3.1, 4.5
attribute DIC_mM_Tf bcodmo_name String DIC
attribute DIC_mM_Tf description String Concentration of dissolved inorganic carbon at the end of the experiment
attribute DIC_mM_Tf long_name String DIC M M Tf
attribute DIC_mM_Tf units String milliMolar (mM)
variable TFAA_uM_To   float  
attribute TFAA_uM_To _FillValue float NaN
attribute TFAA_uM_To actual_range float 0.3, 1.7
attribute TFAA_uM_To bcodmo_name String amino_conc
attribute TFAA_uM_To description String Concentration of total free amino acids at the start of the experiment
attribute TFAA_uM_To long_name String TFAA U M To
attribute TFAA_uM_To units String microMolar (uM)
variable TFAA_uM_Tf   float  
attribute TFAA_uM_Tf _FillValue float NaN
attribute TFAA_uM_Tf actual_range float 3.7, 10.0
attribute TFAA_uM_Tf bcodmo_name String amino_conc
attribute TFAA_uM_Tf description String Concentration of total free amino acids at the end of the experiment
attribute TFAA_uM_Tf long_name String TFAA U M Tf
attribute TFAA_uM_Tf units String microMolar (uM)
variable THAA_uM_To   float  
attribute THAA_uM_To _FillValue float NaN
attribute THAA_uM_To actual_range float 2.1, 11.0
attribute THAA_uM_To bcodmo_name String amino_conc
attribute THAA_uM_To description String Concentration of total hydrolizable amino acids at the start of the experiment
attribute THAA_uM_To long_name String THAA U M To
attribute THAA_uM_To units String microMolar (uM)
variable THAA_uM_Tf   float  
attribute THAA_uM_Tf _FillValue float NaN
attribute THAA_uM_Tf actual_range float 16.4, 50.9
attribute THAA_uM_Tf bcodmo_name String amino_conc
attribute THAA_uM_Tf description String Concentration of total hydrolizable amino acids at the end of the experiment
attribute THAA_uM_Tf long_name String THAA U M Tf
attribute THAA_uM_Tf units String microMolar (uM)
variable Fractionation_factor_ppt_eCO2_CH4   float  
attribute Fractionation_factor_ppt_eCO2_CH4 _FillValue float NaN
attribute Fractionation_factor_ppt_eCO2_CH4 actual_range float 28.5, 45.9
attribute Fractionation_factor_ppt_eCO2_CH4 bcodmo_name String unknown
attribute Fractionation_factor_ppt_eCO2_CH4 colorBarMaximum double 1.0
attribute Fractionation_factor_ppt_eCO2_CH4 colorBarMinimum double 0.0
attribute Fractionation_factor_ppt_eCO2_CH4 description String Fractionation factor between CO2-and methane
attribute Fractionation_factor_ppt_eCO2_CH4 long_name String Fractionation Factor Ppt E CO2 CH4
attribute Fractionation_factor_ppt_eCO2_CH4 units String parts per thousand (ppt)
variable Fractionation_factor_ppt_eCO2_B   float  
attribute Fractionation_factor_ppt_eCO2_B _FillValue float NaN
attribute Fractionation_factor_ppt_eCO2_B actual_range float 22.4, 27.1
attribute Fractionation_factor_ppt_eCO2_B bcodmo_name String unknown
attribute Fractionation_factor_ppt_eCO2_B colorBarMaximum double 1.0
attribute Fractionation_factor_ppt_eCO2_B colorBarMinimum double 0.0
attribute Fractionation_factor_ppt_eCO2_B description String Fractionation factor between CO2-and biomass
attribute Fractionation_factor_ppt_eCO2_B long_name String Fractionation Factor Ppt E CO2 B
attribute Fractionation_factor_ppt_eCO2_B units String parts per thousand (ppt)
variable Fractionation_factor_ppt_eCO2_AA   float  
attribute Fractionation_factor_ppt_eCO2_AA _FillValue float NaN
attribute Fractionation_factor_ppt_eCO2_AA actual_range float 27.5, 35.0
attribute Fractionation_factor_ppt_eCO2_AA bcodmo_name String unknown
attribute Fractionation_factor_ppt_eCO2_AA colorBarMaximum double 1.0
attribute Fractionation_factor_ppt_eCO2_AA colorBarMinimum double 0.0
attribute Fractionation_factor_ppt_eCO2_AA description String Fractionation factor between CO2-and amino acids
attribute Fractionation_factor_ppt_eCO2_AA long_name String Fractionation Factor Ppt E CO2 AA
attribute Fractionation_factor_ppt_eCO2_AA units String parts per thousand (ppt)
variable Fractionation_factor_ppt_eCO2_squalenoids   String  
attribute Fractionation_factor_ppt_eCO2_squalenoids bcodmo_name String unknown
attribute Fractionation_factor_ppt_eCO2_squalenoids description String Fractionation factor between CO2-and squalenoids
attribute Fractionation_factor_ppt_eCO2_squalenoids long_name String Fractionation Factor Ppt E CO2 Squalenoids
attribute Fractionation_factor_ppt_eCO2_squalenoids units String parts per thousand (ppt)

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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