http://lod.bco-dmo.org/id/dataset/683864
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2017-03-07
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Southern Ocean deep-sea fossil coral (Desmophyllum dianthus) nitrogen isotopes from R/V Nathaniel B. Palmer and R/V Thompson cruises between 2008 and 2011 (DeepSeaCoralNitrogen project)
2017-04-28
publication
2017-04-28
revision
BCO-DMO Linked Data URI
2017-04-28
creation
http://lod.bco-dmo.org/id/dataset/683864
Maria Prokopenko
Pomona College
principalInvestigator
Daniel M. Sigman
Princeton University
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Prokopenko, M., Sigman, D. M. (2017) Southern Ocean deep-sea fossil coral (Desmophyllum dianthus) nitrogen isotopes from R/V Nathaniel B. Palmer and R/V Thompson cruises between 2008 and 2011 (DeepSeaCoralNitrogen project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2017-04-28 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/683864 [access date]
Deep-sea fossil coral (Desmophyllum dianthus) nitrogen isotopes Dataset Description: <p>This dataset contains d15N isotope data from fossil scleractinian coral (Desmophyllum dianthus) samples. &nbsp;Coral age from radiocarbon dating and Uranium-Thorium dating, sample depth, latitude, and longitude are also included. Deep-sea corals used in this study were collected from (1) sea-mounts south of Tasmania during cruise TN-228 in 2008–2009 on the R/V Thompson; and (2) the Drake Passage from May to June 2011 during cruise NBP1103 on the R/V Nathaniel B. Palmer.</p>
<p><strong>These data were published in:</strong></p>
<p>Wang, X. T., Sigman, D. M., Prokopenko, M. G., Adkins, J. F., Robinson, L. F., Hines, S. K., ... &amp; Haug, G. H. (2017). Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age. Proceedings of the National Academy of Sciences, 201615718. doi:&nbsp;<a href="http://doi.org/10.1073/pnas.1615718114">10.1073/pnas.1615718114</a></p>
<p><strong>Related </strong><strong>dataset</strong><strong> also from this publication:</strong></p>
<p>d15N and age&nbsp;data from this dataset were used in the&nbsp;dataset:<br />
<a href="https://www.bco-dmo.org/dataset/692791" target="_blank">Average coral nitrogen isotope records generated using Monte Carlo and Kalman Filters</a></p>
<p>&nbsp;</p> Methods and Sampling: <p>Nitrogen isotopes were generated using the persulfate oxidation and denitrified method in the Sigman Lab at Princeton University. The precision of this method is 0.2 permil (d15N vs. air)]. Samples were obtained from the collections of Jess F. Adkins (California Institute of Technology) and Laura F. Robinson (University of Bristol).</p>
<p>For more methodology details see Wang et al. 2017.</p>
<p>Wang, X. T., Sigman, D. M., Prokopenko, M. G., Adkins, J. F., Robinson, L. F., Hines, S. K., ... &amp; Haug, G. H. (2017). Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age. Proceedings of the National Academy of Sciences, 201615718. doi:&nbsp;<a href="http://doi.org/10.1073/pnas.1615718114">10.1073/pnas.1615718114</a></p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1234664 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1234664
onGoing
Maria Prokopenko
Pomona College
323-630-4068
185 E Sixth St
Claremont
CA
91711-4434
US
Maria.Prokopenko@pomona.edu
pointOfContact
Daniel M. Sigman
Princeton University
609-258-2194
Department of Geosciences M52 Guyot Hall
Princeton
NJ
08544
USA
sigman@princeton.edu
pointOfContact
asNeeded
Unknown
Gas chromatography
isotope ratio mass spectrometry
theme
None, User defined
Gas Chromatograph
Isotope-ratio Mass Spectrometer
instrument
BCO-DMO Standard Instruments
NBP1103
NBP0805
TN228
service
Deployment Activity
Drake Passage
Tasmania, and Fiji
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Nitrogen isotopic (d15N) composition of carbonate-bound organic nitrogen in Deep Sea Corals: A new, high resolution proxy for N cycle studies
https://osprey.bco-dmo.org/project/683473
Nitrogen isotopic (d15N) composition of carbonate-bound organic nitrogen in Deep Sea Corals: A new, high resolution proxy for N cycle studies
<p><em>PI supplied project description:</em></p>
<p><strong>Intellectual Merit</strong></p>
<p>The history of the nitrogen (N) cycle provides insight into the links between past climate and marine biogeochemical cycles. Interpretations of the history of the N cycle rely on the nitrogen isotopic composition (del15N) of Particulate Organic Nitrogen (del15N-PON) preserved in sedimentary archives such as: bulk organic nitrogen (ON) buried in anoxic/suboxic sediments, skeletal-bound ON in diatom frustules and foraminiferal tests, and organic skeletons of deep-sea proteinaceous corals. As is often is the case with paleo-proxies, these archives have advantages, as well as limitations, the latter arising from temporal and/or spatial restrictions in distribution. Therefore, multiple archives are needed for better understanding the patterns and causes of N cycle variability in the past.</p>
<p>To improve upon the geographic and temporal resolution of del15N paleo-records, this projects evaluates a new proxy for the history of the marine N cycle-- del15N of ON bound within the mineral lattice of deep-sea corals (DSC). The project included two parts: 1) a modern calibration study; 2) a survey of d15N in the fossil corals from the Southern Ocean and comparison with previously published records of the diatom- and foraminifera-bound del15N.</p>
<p><strong>Summary of findings</strong></p>
<p>A survey of modern coral specimens (Desmophyllum dianthus) from disparate oceanographic environments, each chosen to represent a distinct del15N signature of PON exported from the euphotic zone showed strong statistical correlation between the coral-bound ON (CB-del15N) and del15N of regional export PON (Wang et al., 2014), establishing the fidelity of CB-del15N proxy.</p>
<p>In the second phase, the research group generated a set of time-resolved records of del15N in fossil D. dianthus from the Subantarctic (south of Tasmania and northern Drake Passage) and Antarctic (southern Drake Passage) regions of the Southern Ocean, spanning 40Ka through the present (Wang et al., 2017). In the modern Southern Ocean, the surface nutrients (including nitrate) are not fully consumed, resulting in leakage of deeply sequestered CO2 to the atmosphere. Incomplete nitrate consumption is manifested in low del15N of the exported modern PON. Wang et al. (2017) found that in both Southern Ocean regions the average CB-del15N during Last Glacial Maximum (LGM) was 4 to 5 permil higher than today. This finding provided a strong proof for the previously proposed hypothesis of the more efficient biological pump in the Southern Ocean, driving lower pCO2 during the ice ages. Stronger vertical stratification in the Antarctic and higher iron supply in the Subantarctic zones are the two likely reasons for the more efficient surface nitrate uptake during the LGM than occurs in the modern Southern Ocean.</p>
<p>The trends defined by the CB-del15N in the Southern Ocean corals were comparable to the previously published del15N records of diatom- and foraminifera-bound ON from both the Antarctic and Subantarctic zones, validating the reliability of the fossil deep-sea corals as paleo-archives. However, higher temporal resolution afforded by the DSC revealed a previously unnoticed feature: the CB-del15N in the Antarctic Zone continued to decrease through the Holocene, pointing to the ongoing decline in the nitrate uptake efficiency. One possible mechanism driving this change is the intensifying overturning of the Southern Ocean, which might have contributed to the rise in atmospheric pCO2 since 8 kyr.</p>
<p>For more information see the <a href="https://www.nsf.gov/awardsearch/showAward?AWD_ID=1234664" target="_blank">NSF award page</a></p>
DeepSeaCoralNitrogen
largerWorkCitation
project
eng; USA
oceans
Drake Passage; Tasmania, and Fiji
2017-04-28
Sub-Antarctic waters and Antarctic waters
0
BCO-DMO catalogue of parameters from Southern Ocean deep-sea fossil coral (Desmophyllum dianthus) nitrogen isotopes from R/V Nathaniel B. Palmer and R/V Thompson cruises between 2008 and 2011 (DeepSeaCoralNitrogen project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
33738
https://datadocs.bco-dmo.org/file/N77Ggxrs0r2M7P/N_all_sites.csv
N_all_sites.csv
Primary data file for dataset ID 683864
download
https://osprey.bco-dmo.org/dataset/683864/data/download
download
onLine
dataset
<p>Nitrogen isotopes were generated using the persulfate oxidation and denitrified method in the Sigman Lab at Princeton University. The precision of this method is 0.2 permil (d15N vs. air)]. Samples were obtained from the collections of Jess F. Adkins (California Institute of Technology) and Laura F. Robinson (University of Bristol).</p>
<p>For more methodology details see Wang et al. 2017.</p>
<p>Wang, X. T., Sigman, D. M., Prokopenko, M. G., Adkins, J. F., Robinson, L. F., Hines, S. K., ... &amp; Haug, G. H. (2017). Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age. Proceedings of the National Academy of Sciences, 201615718. doi:&nbsp;<a href="http://doi.org/10.1073/pnas.1615718114">10.1073/pnas.1615718114</a></p>
Specified by the Principal Investigator(s)
<p>These data are raw nitrogen isotope data generated in the Sigman Lab at Princeton University.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Gas chromatography
Gas chromatography
PI Supplied Instrument Name: Gas chromatography Instrument Name: Gas Chromatograph Instrument Short Name:Gas Chromatograph Instrument Description: Instrument 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. (from SeaDataNet, BODC) Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB02/
isotope ratio mass spectrometry
isotope ratio mass spectrometry
PI Supplied Instrument Name: isotope ratio mass spectrometry Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: 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). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
Cruise: NBP1103
NBP1103
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel
NBP1103
Laura F. Robinson
Woods Hole Oceanographic Institution
Cruise: NBP0805
NBP0805
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel
NBP0805
Ian Dalziel
University of Texas at Austin
Cruise: TN228
TN228
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TN228
Jess F. Adkins
California Institute of Technology
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel