http://lod.bco-dmo.org/id/dataset/924638
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
2024-04-09
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Measurements of Radium isotopes (Ra-224 and Ra-223) collected aboard the R/V Falkor cruise FK190211 in the Guaymas Basin of the Gulf of California from February to March 2019.
2024-04-30
publication
2024-04-30
revision
BCO-DMO Linked Data URI
2024-04-30
creation
http://lod.bco-dmo.org/id/dataset/924638
Richard N. Peterson
Coastal Carolina 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: Peterson, R. N. (2024) Measurements of Radium isotopes (Ra-224 and Ra-223) collected aboard the R/V Falkor cruise FK190211 in the Guaymas Basin of the Gulf of California from February to March 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-04-30 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/924638 [access date]
Methods and Sampling: <p>Water samples for radium isotope analysis were collected from both niskin bottles attached to the CTD rosette (‘C’ designator in data sheet) and from niskin bottles attached to the remotely operated vehicle (ROV).&nbsp;&nbsp;Water samples were filtered through 47 mm GFF filters (unless otherwise noted), then passed slowly through 25 g (dry) acrylic fibers impregnated with MnO2 (Moore, 1976).&nbsp;&nbsp;Fibers were then washed 10x with Ra-free freshwater to remove salts and dried to a mass between 35 and 57 g for optimal humidity levels (Sun and Torgersen, 1998).&nbsp;&nbsp;Fibers were then immediately counted on a Radium Delayed Coincidence Counter (RaDeCC; Moore and Arnold, 1996) for total Ra-224 and Ra-223.&nbsp;&nbsp;Roughly 3 weeks later, fibers were counted again for supported Ra-224.&nbsp;&nbsp;Thus, excess (‘XS’) Ra-224 is the difference between total and supported Ra-224 measurements.&nbsp;</p>
<p>Radium isotopes were analyzed with a Radium Delayed Coincidence Counter (Moore and Arnold, 1996).&nbsp;&nbsp;This system was calibrated to standard MnO2 prepared from NIST-traceable solutions of Th-232 and Ac-227 (with daughters in equilibrium).</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1357360 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1357360
onGoing
Richard N. Peterson
Coastal Carolina University
843-349-4057
Department of Coastal and Marine Systems Science P.O. Box 261954
Conway
SC
29528-6054
USA
rpeters2@coastal.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
C_or_R
Station
Site
Date
Time
Latitude
Longitude
Depth
Sample_Volume
Ra223_Activity
Ra223_Activity_Comment
Ra223_Unc
Ra223_Unc_Comment
XS_Ra224_Activity
XS_Ra224_Activity_Comment
XS_Ra224_Unc
XS_Ra224_Unc_Comment
ISO_DateTime_UTC
Niskin bottle
Radium Delayed Coincidence Counter (Moore and Arnold, 1996)
ROV
theme
None, User defined
sample identification
station
site
date_local
time_local
latitude
longitude
depth
sample_volume
radium-223
comments
radium-224
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
Niskin bottle
Radium Delayed Coincidence Counter
ROV SuBastian
instrument
BCO-DMO Standard Instruments
FK190211
service
Deployment Activity
Gulf of California
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.
Collaborative Research: Microbial Carbon cycling and its interactions with Sulfur and Nitrogen transformations in Guaymas Basin hydrothermal sediments
https://osprey.bco-dmo.org/project/474317
Collaborative Research: Microbial Carbon cycling and its interactions with Sulfur and Nitrogen transformations in Guaymas Basin hydrothermal sediments
<p><em>Description from NSF award abstract:</em><br />
Hydrothermally active sediments in the Guaymas Basin are dominated by novel microbial communities that catalyze important biogeochemical processes in these seafloor ecosystems. This project will investigate genomic potential, physiological capabilities and biogeochemical roles of key uncultured organisms from Guaymas sediments, especially the high-temperature anaerobic methane oxidizers that occur specifically in hydrothermally active sediments (ANME-1Guaymas). The study will focus on their role in carbon transformations, but also explore their potential involvement in sulfur and nitrogen transformations. First-order research topics include quantifying anaerobic methane oxidation under high temperature,in situ concentrations of phosphorus and methane , and with alternate electron acceptors; sulfate and sulfur-dependent microbial pathways and isotopic signatures under these conditions; and nitrogen transformations in methane-oxidizing microbial communities, hydrothermal mats and sediments.</p>
<p>This integrated biogeochemical and microbiological research will explore the pathways of and environmental controls on the consumption and production of methane, other alkanes, inorganic carbon, organic acids and organic matter that fuel the Guaymas sedimentary microbial ecosystem. The hydrothermal sediments of Guaymas Basin provide a spatially compact, high-activity location for investigating novel modes of methane cycling and carbon assimilation into microbial biomass. In the case of anaerobic methane oxidation, the high temperature and pressure tolerance of Guaymas Basin methane-oxidizing microbial communities, and their potential to uncouple from the dominant electron acceptor sulfate, vastly increase the predicted subsurface habitat space and biogeochemical role for anaerobic microbial methanotrophy in global deep subsurface diagenesis. Further, microbial methane production and oxidation interlocks with syulfur and nitrogen transformations, which will be explored at the organism and process level in hydrothermal sediment microbial communities and mats of Guaymas Basin. In general, first-order research tasks (rate measurements, radiotracer incorporation studies, genomes, in situ microgradients) define the key microbial capabilities, pathways and processes that mediate chemical exchange between the subsurface hydrothermal/seeps and deep ocean waters.</p>
Guaymas Basin Interactions
largerWorkCitation
project
eng; USA
oceans
Gulf of California
-111.464667
-108.862033
23.956883
27.583333
2019-02-27
2019-03-11
Guaymas Basin, Gulf of California, 27.00 N, 111.00W
0
BCO-DMO catalogue of parameters from Measurements of Radium isotopes (Ra-224 and Ra-223) collected aboard the R/V Falkor cruise FK190211 in the Guaymas Basin of the Gulf of California from February to March 2019.
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/925754.rdf
Name: C_or_R
Units: unitless
Description: <p>CTD or ROV Niskin sample designator</p>
http://lod.bco-dmo.org/id/dataset-parameter/925755.rdf
Name: Station
Units: unitless
Description: <p>Station #</p>
http://lod.bco-dmo.org/id/dataset-parameter/925756.rdf
Name: Site
Units: unitless
Description: <p>Site Name</p>
http://lod.bco-dmo.org/id/dataset-parameter/925757.rdf
Name: Date
Units: unitless
Description: <p>Local date (EST) sample collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/925758.rdf
Name: Time
Units: unitless
Description: <p>Local time (EST) sample collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/925759.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Sampling latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/925760.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Sampling longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/925761.rdf
Name: Depth
Units: meters (m)
Description: <p>Water depth of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/925762.rdf
Name: Sample_Volume
Units: Liters (l)
Description: <p>Water sample volume</p>
http://lod.bco-dmo.org/id/dataset-parameter/926080.rdf
Name: Ra223_Activity
Units: disintegrations per minute per 100 Liters (dpm/100L)
Description: <p>Radium-223 activity. Note, minimum detectable activities (dpm/100L) are calculated based on Currie (1968). Any measured values lower than the minimum detectable activity is labeled ‘BD’.</p>
http://lod.bco-dmo.org/id/dataset-parameter/926081.rdf
Name: Ra223_Activity_Comment
Units: unitless
Description: <p>Radium-223 activity comment field where BD = below detection</p>
http://lod.bco-dmo.org/id/dataset-parameter/926082.rdf
Name: Ra223_Unc
Units: disintegrations per minute per 100 Liters (dpm/100L)
Description: <p>1-s analytical uncertainty for Ra223. Any value corresponding to measured values lower than the minimum detectable activity is labeled ‘BD’.</p>
http://lod.bco-dmo.org/id/dataset-parameter/926083.rdf
Name: Ra223_Unc_Comment
Units: unitless
Description: <p>1-s analytical uncertainty for Ra223 comment field where BD = below detection</p>
http://lod.bco-dmo.org/id/dataset-parameter/926084.rdf
Name: XS_Ra224_Activity
Units: disintegrations per minute per 100 Liters (dpm/100L)
Description: <p>Excess radium-224 activity. Note, minimum detectable activities (dpm/100L) are calculated based on Currie (1968). Any measured value lower than the minimum detectable activity is labeled ‘BD’.</p>
http://lod.bco-dmo.org/id/dataset-parameter/926085.rdf
Name: XS_Ra224_Activity_Comment
Units: unitless
Description: <p>Excess radium-224 activity comment field where BD = below detection</p>
http://lod.bco-dmo.org/id/dataset-parameter/926086.rdf
Name: XS_Ra224_Unc
Units: disintegrations per minute per 100 Liters (dpm/100L)
Description: <p>1-s analytical uncertainty for Ra224</p>
http://lod.bco-dmo.org/id/dataset-parameter/926087.rdf
Name: XS_Ra224_Unc_Comment
Units: unitless
Description: <p>1-s analytical uncertainty for Ra225 comment field where BD = below detection</p>
http://lod.bco-dmo.org/id/dataset-parameter/926088.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Sample date and time in ISO standardized format added by repository</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
https://osprey.bco-dmo.org/dataset/924638/data/download
download
onLine
dataset
<p>Water samples for radium isotope analysis were collected from both niskin bottles attached to the CTD rosette (‘C’ designator in data sheet) and from niskin bottles attached to the remotely operated vehicle (ROV).&nbsp;&nbsp;Water samples were filtered through 47 mm GFF filters (unless otherwise noted), then passed slowly through 25 g (dry) acrylic fibers impregnated with MnO2 (Moore, 1976).&nbsp;&nbsp;Fibers were then washed 10x with Ra-free freshwater to remove salts and dried to a mass between 35 and 57 g for optimal humidity levels (Sun and Torgersen, 1998).&nbsp;&nbsp;Fibers were then immediately counted on a Radium Delayed Coincidence Counter (RaDeCC; Moore and Arnold, 1996) for total Ra-224 and Ra-223.&nbsp;&nbsp;Roughly 3 weeks later, fibers were counted again for supported Ra-224.&nbsp;&nbsp;Thus, excess (‘XS’) Ra-224 is the difference between total and supported Ra-224 measurements.&nbsp;</p>
<p>Radium isotopes were analyzed with a Radium Delayed Coincidence Counter (Moore and Arnold, 1996).&nbsp;&nbsp;This system was calibrated to standard MnO2 prepared from NIST-traceable solutions of Th-232 and Ac-227 (with daughters in equilibrium).</p>
Specified by the Principal Investigator(s)
<p>Data processing was performed in Microsoft Excel.</p>
Specified by the Principal Investigator(s)
- Modified parameter (column header) names to conform with CSV standards (remove spaces, special characters, etc.)
- Added column for ISO DateTime in UTC
- Converted the submitted Date column to ISO format (i.e., YYYY-MM-DD)
- Added correct hemisphere sign to longitude values (negative sign)
- Created columns for comments to accommodate identification of measurements that were below detection; previously marked as "BD" within numeric isotope observations columns.
- Corrected reference to Gulf of Mexico in dataset abstract to Gulf of California.
Specified by BCO-DMO Data Managers
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
Niskin bottle
Niskin bottle
PI Supplied Instrument Name: Niskin bottle PI Supplied Instrument Description:Both niskin bottles attached to the CTD rosette (‘C’ designator in data sheet) and from niskin bottles attached to the remotely operated vehicle (ROV) were used to collect 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/
Radium Delayed Coincidence Counter (Moore and Arnold, 1996)
Radium Delayed Coincidence Counter (Moore and Arnold, 1996)
PI Supplied Instrument Name: Radium Delayed Coincidence Counter (Moore and Arnold, 1996) PI Supplied Instrument Description:Radium Delayed Coincidence Counter (Moore and Arnold, 1996). This system was calibrated to standard MnO2 prepared from NIST-traceable solutions of Th-232 and Ac-227 (with daughters in equilibrium). Instrument Name: Radium Delayed Coincidence Counter Instrument Short Name:RaDeCC Instrument Description: The RaDeCC is an alpha scintillation counter that distinguishes decay events of short-lived radium daughter products based on their contrasting half-lives. This system was pioneered by Giffin et al. (1963) and adapted for radium measurements by Moore and Arnold (1996).
References:
Giffin, C., A. Kaufman, W.S. Broecker (1963). Delayed coincidence counter for the assay of actinon and thoron. J. Geophys. Res., 68, pp. 1749-1757.
Moore, W.S., R. Arnold (1996). Measurement of 223Ra and 224Ra in coastal waters using a delayed coincidence counter. J. Geophys. Res., 101 (1996), pp. 1321-1329.
Charette, Matthew A.; Dulaiova, Henrieta; Gonneea, Meagan E.; Henderson, Paul B.; Moore, Willard S.; Scholten, Jan C.; Pham, M. K. (2012). GEOTRACES radium isotopes interlaboratory comparison experiment. Limnology and Oceanography - Methods, vol 10, pg 451.
ROV
ROV
PI Supplied Instrument Name: ROV PI Supplied Instrument Description:Water samples for radium isotope analysis were collected from niskin bottles attached to the remotely operated vehicle (ROV). Instrument Name: ROV SuBastian Instrument Short Name: Instrument Description: ROV SuBastian is operated from the research vessel Falkor and the R/V Falkor(too). The ROV is outfitted with a suite of sensors and scientific equipment to support scientific data and sample collection, as well as interactive research, experimentation, and technology development. More information available at https://schmidtocean.org/technology/robotic-platforms/4500-m-remotely-operated-vehicle-rov/
Cruise: FK190211
FK190211
R/V Falkor
Community Standard Description
International Council for the Exploration of the Sea
R/V Falkor
vessel
FK190211
Samantha B. Joye
University of Georgia
R/V Falkor
Community Standard Description
International Council for the Exploration of the Sea
R/V Falkor
vessel