http://lod.bco-dmo.org/id/dataset/903891
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
2023-07-07
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Nitrate (NO3-) and Nitrite (NO2-) d15N and d18O from R/V Atlantis cruise AT15-61 in Jan-Feb 2010 and R/V Melville cruise MV1104 in Mar-Apr 2011 in the Eastern Tropical South Pacific (ETSP)
2023-07-10
publication
2023-07-10
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2023-07-28
publication
https://doi.org/10.26008/1912/bco-dmo.903891.1
Karen L. Casciotti
Woods Hole Oceanographic Institution
principalInvestigator
Alyson E. Santoro
Woods Hole Oceanographic Institution
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: Casciotti, K. L., Buchwald, C., Gluschankoff, N., McIlvin, M. R., Forbes, M. (2023) Nitrate (NO3-) and Nitrite (NO2-) d15N and d18O from R/V Atlantis cruise AT15-61 in Jan-Feb 2010 and R/V Melville cruise MV1104 in Mar-Apr 2011 in the Eastern Tropical South Pacific (ETSP). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-07-10 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.903891.1 [access date]
ETSP NO3 and NO2 isotopes Dataset Description: <p>Nitrous oxide (N2O) data from the samples are available in the related dataset "ETSP N2O" <a href="http://(https://www.bco-dmo.org/dataset/821268" target="_blank">(https://www.bco-dmo.org/dataset/821268</a>).</p> Methods and Sampling: <p>Seawater samples were obtained during the R/V Atlantis (AT15-61) and R/V Melville (MV1104) cruises from January to February 2010 and March to April 2011. Water samples were collected at discrete depths using Niskin bottle type rosette samplers equipped with either 24 bottles (10L) or 12 bottles (20L), and an SBE9plus conductivity-temperature-depth (CTD) sensor package (SeaBird Electronics, Bellevue, WA).</p>
<p>The d15N and d18O of NO3- was determined using the "denitrifier" method (Casciotti et al., 2002; Sigman et al., 2001) with updated techniques (McIlvin &amp; Casciotti, 2011). Samples were treated with sulfamic acid to remove NO2-, if present (Granger &amp; Sigman, 2009).</p>
<p>The d15N and d18O of NO2- was determined using the chemical reduction of NO2- to nitrous oxide (N2O) using the "azide method" (McIlvin &amp; Altabet, 2005).</p>
<p>Samples were collected on the R/V Atlantis in January through February 2010, and the R/V Melville in March through April 2011 between 10° and 20° South and between 80° and 100° West, with station locations and sample depths, salinities, sigma theta, oxygen concentrations values, etc. reported in the 'ETSP N2O' dataset. Water column samples were collected by Niskin bottles deployed on a rosette equipped with conductivity-temperature-depth (CTD) sensors. All samples were collected into sample-rinsed HDPE bottles and passed through a 0.2 micrometer (um) filter before collection, and were stored at -20° Celsius until analysis on land.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0961098 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0961098
completed
Karen L. Casciotti
Woods Hole Oceanographic Institution
650-721-5545
Department of Environmental Earth System Science 473 Via Ortega, Y2E2 Building, Room 140
Stanford
CA
94305
USA
kcasciotti@stanford.edu
pointOfContact
Alyson E. Santoro
Woods Hole Oceanographic Institution
805-893-5318
2155 Marine Biotech Lab
Santa Barbara
CA
93106
USA
asantoro@ucsb.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Year
Station
Depth
del15N_NO3
del15N_NO3_sd
del18O_NO3
del18O_NO3_sd
del15N_NO2
del15N_NO2_sd
del18O_NO2
del18O_NO2_sd
ISO_Date_Local
Latitude
Longitude
CTD - profiler
Thermo Delta Plus XP isotope ratio mass spectrometer
Niskin bottle
theme
None, User defined
year
station
depth
d15N_NO3
d18O_NO3
d15N
oxygen 16 to oxygen 18 ratio
ISO_DateTime_Local
latitude
longitude
featureType
BCO-DMO Standard Parameters
CTD - profiler
Isotope-ratio Mass Spectrometer
Niskin bottle
instrument
BCO-DMO Standard Instruments
AT15-61
MV1104
service
Deployment Activity
Eastern Tropical South Pacific
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.
Expression of Microbial Nitrification in the Stable Isotopic Systematics of Oceanic Nitrite and Nitrate
https://osprey.bco-dmo.org/project/555516
Expression of Microbial Nitrification in the Stable Isotopic Systematics of Oceanic Nitrite and Nitrate
<p><em>Description from NSF award abstract:</em><br />
Closing the marine budgets of nitrate and nitrous oxide are central goals for researchers interested in nutrient-driven changes in primary productivity and climate change. With the implementation of new methods for oxygen isotopic analysis of seawater nitrate, it will be possible to construct a budget for nitrate based on its oxygen isotopic distribution that is complementary to nitrogen isotope budgets. Before we can effectively use oxygen isotopes in nitrate to inform the current understanding of the marine nitrogen cycle, we must first understand how different processes that produce (nitrification) and consume (assimilation, denitrification) nitrate affect its oxygen isotopic signature.</p>
<p>In this study, researchers at the Woods Hole Oceanographic Institution will provide a quantitative assessment of the oxygen isotopic systematics of nitrification in the field and thus fill a key gap in our understanding of 18O variations in nitrate, nitrite, and nitrous oxide. The primary goal is to develop a quantitative prediction of the oxygen isotopic signatures of nitrite and nitrate produced during nitrification in the sea. The researchers hypothesize that oxygen isotopic fractionation during nitrification is the primary factor setting the 18O values of newly produced nitrate and nitrite. Secondly, they hypothesize that oxygen atom exchange is low where ammonia oxidation and nitrite oxidation are tightly coupled, but may increase in regions with nitrite accumulation, such as in the primary and secondary nitrite maxima. They will test these hypotheses with a series of targeted laboratory and field experiments, as well as with measurements of nitrite and nitrate isotopic distributions extending through the euphotic zone, primary nitrite maximum, and secondary nitrite maximum of the Eastern Tropical South Pacific. The results of these experiments are expected to provide fundamental information required for the interpretation of 18O isotopic signatures in nitrite, nitrate, and N2O in the context of underlying microbial processes. A better understanding of these features and the processes involved is important for quantifying new production, controls on the N budget, and N2O production in the ocean -- which should lead to a better understanding of the direct and indirect interactions among the nitrogen cycle, marine chemistry, and climate.</p>
Microbial Nitrification
largerWorkCitation
project
eng; USA
oceans
Eastern Tropical South Pacific
-100
-79.997
-20.01
-9.973
2010-02-01
2011-04-16
Eastern Tropical South Pacific
0
BCO-DMO catalogue of parameters from Nitrate (NO3-) and Nitrite (NO2-) d15N and d18O from R/V Atlantis cruise AT15-61 in Jan-Feb 2010 and R/V Melville cruise MV1104 in Mar-Apr 2011 in the Eastern Tropical South Pacific (ETSP)
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
http://lod.bco-dmo.org/id/dataset-parameter/904168.rdf
Name: Year
Units: unitless
Description: <p>Year sampled</p>
http://lod.bco-dmo.org/id/dataset-parameter/904169.rdf
Name: Station
Units: unitless
Description: <p>Station</p>
http://lod.bco-dmo.org/id/dataset-parameter/904170.rdf
Name: Depth
Units: meters (m)
Description: <p>Sample Depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/904171.rdf
Name: del15N_NO3
Units: permille
Description: <p>Delta 15N of nitrate; expressed in permille notation in reference to atmospheric N2</p>
http://lod.bco-dmo.org/id/dataset-parameter/904172.rdf
Name: del15N_NO3_sd
Units: permille
Description: <p>Delta 15N of nitrate; 1 standard deviation expressed in permille notation in reference to atmospheric N2</p>
http://lod.bco-dmo.org/id/dataset-parameter/904173.rdf
Name: del18O_NO3
Units: permille
Description: <p>Delta 18O of nitrate; expressed in permille notation in reference to VSMOW (vienna standard mean ocean water)</p>
http://lod.bco-dmo.org/id/dataset-parameter/904174.rdf
Name: del18O_NO3_sd
Units: permille
Description: <p>Delta 18O of nitrate; 1 standard deviation expressed in permille notation in reference to VSMOW (vienna standard mean ocean water)</p>
http://lod.bco-dmo.org/id/dataset-parameter/904175.rdf
Name: del15N_NO2
Units: permille
Description: <p>Delta 15N of nitrate expressed in permille notation in reference to atmospheric N2</p>
http://lod.bco-dmo.org/id/dataset-parameter/904176.rdf
Name: del15N_NO2_sd
Units: permille
Description: <p>Delta 15N of nitrite; 1 standard deviation expressed in permille notation in reference to atmospheric N2</p>
http://lod.bco-dmo.org/id/dataset-parameter/904177.rdf
Name: del18O_NO2
Units: permille
Description: <p>Delta 18O of nitrite; 1 standard deviation expressed in permille notation in reference to VSMOW (vienna standard mean ocean water)</p>
http://lod.bco-dmo.org/id/dataset-parameter/904178.rdf
Name: del18O_NO2_sd
Units: permille
Description: <p>Delta 18O of nitrite; 1 standard deviation expressed in permille notation in reference to VSMOW (vienna standard mean ocean water)</p>
http://lod.bco-dmo.org/id/dataset-parameter/904179.rdf
Name: ISO_Date_Local
Units: unitless
Description: <p>Date of sampling in ISO 8601 format. Timezone was GMT-5 in 2010, GMT-4 in 2011</p>
http://lod.bco-dmo.org/id/dataset-parameter/904180.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude of sample collection, South is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/904181.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude of sample collection, West is negative</p>
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
20684
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/370cf660-1562-49c8-8d28-95804c87139a/content
download
https://doi.org/10.26008/1912/bco-dmo.903891.1
download
onLine
dataset
<p>Seawater samples were obtained during the R/V Atlantis (AT15-61) and R/V Melville (MV1104) cruises from January to February 2010 and March to April 2011. Water samples were collected at discrete depths using Niskin bottle type rosette samplers equipped with either 24 bottles (10L) or 12 bottles (20L), and an SBE9plus conductivity-temperature-depth (CTD) sensor package (SeaBird Electronics, Bellevue, WA).</p>
<p>The d15N and d18O of NO3- was determined using the "denitrifier" method (Casciotti et al., 2002; Sigman et al., 2001) with updated techniques (McIlvin &amp; Casciotti, 2011). Samples were treated with sulfamic acid to remove NO2-, if present (Granger &amp; Sigman, 2009).</p>
<p>The d15N and d18O of NO2- was determined using the chemical reduction of NO2- to nitrous oxide (N2O) using the "azide method" (McIlvin &amp; Altabet, 2005).</p>
<p>Samples were collected on the R/V Atlantis in January through February 2010, and the R/V Melville in March through April 2011 between 10° and 20° South and between 80° and 100° West, with station locations and sample depths, salinities, sigma theta, oxygen concentrations values, etc. reported in the 'ETSP N2O' dataset. Water column samples were collected by Niskin bottles deployed on a rosette equipped with conductivity-temperature-depth (CTD) sensors. All samples were collected into sample-rinsed HDPE bottles and passed through a 0.2 micrometer (um) filter before collection, and were stored at -20° Celsius until analysis on land.</p>
Specified by the Principal Investigator(s)
<p><strong>BCO-DMO Processing:</strong><br />
- Imported original file named "ETSP_ENSO_no3_no2_isotope_BCODMO_230227.xlsx" sheet 1 into the BCO-DMO data system.<br />
- Replaced missing data identifier of 'NaN' with blank/empty values, which is the default for csv files.<br />
- Added columns ISO_DateTime_Local, Latitude, and Longitude from related N2O dataset (<a href="https://www.bco-dmo.org/dataset/821268" target="_blank">https://www.bco-dmo.org/dataset/821268</a>) by joining on key comprised of Year+Station+Depth.<br />
- Named the final file "903891_v1_etsp_no3_and_no2_isotopes.csv".</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
CTD - profiler
CTD - profiler
PI Supplied Instrument Name: CTD - profiler Instrument Name: CTD - profiler Instrument Short Name: Instrument Description: The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.
This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/130/
Thermo Delta Plus XP isotope ratio mass spectrometer
Thermo Delta Plus XP isotope ratio mass spectrometer
PI Supplied Instrument Name: Thermo Delta Plus XP isotope ratio mass spectrometer PI Supplied Instrument Description:Used to analyze NO3- and NO2- d15N and d18O. 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/
Niskin bottle
Niskin bottle
PI Supplied Instrument Name: Niskin bottle PI Supplied Instrument Description:Used to collect water samples. Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument Description: A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
Cruise: AT15-61
AT15-61
R/V Atlantis
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantis
vessel
AT15-61
Douglas G. Capone
University of Southern California
Cruise: MV1104
MV1104
R/V Melville
Community Standard Description
International Council for the Exploration of the Sea
R/V Melville
vessel
MV1104
William M. Berelson
University of Southern California
R/V Atlantis
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantis
vessel
R/V Melville
Community Standard Description
International Council for the Exploration of the Sea
R/V Melville
vessel