http://lod.bco-dmo.org/id/dataset/878527
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
2022-08-12
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Dissolved Radium from Kolyma (Russia), Ellice (Canada), and Kodiak Island (USA) Rivers
2022-08-16
publication
2022-08-16
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2022-08-17
publication
https://doi.org/10.26008/1912/bco-dmo.878527.1
Matthew A. Charette
Woods Hole Oceanographic Institution
principalInvestigator
Emma J. Bullock
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: Charette, M. A., Bullock, E. J. (2022) Dissolved Radium from Kolyma (Russia), Ellice (Canada), and Kodiak Island (USA) Rivers. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2022-08-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.878527.1 [access date]
Minor Arctic Rivers - Dissolved Radium Dataset Description: Methods and Sampling: <p>Samples were collected in the Ellice River&nbsp;in August and September 2017, the Kolyma River in June and September 2019, and the Buskin, Sustina, Matanuska, and Knik Rivers in September 2019 . The Ellice River is located in Nunavut, Canada, on the mainland side of the Canadian Arctic Archipelago. The Kolyma River is a major river in Siberia, draining into the East Siberian Sea and represents the largest Arctic river basin underlain by continuous permafrost. The Buskin River is located on Kodiak Island, AK, while the Sustina, Matanuska, and Knik Rivers drain into Cook Inlet near Anchorage, AK.</p>
<p>The samples were collected using either a bilge or well pump and the river water was passed through a 1 or 5 μm prefilter to remove suspended sediment before being filtered at &lt;1 L/min onto Mn-coated acrylic fiber. The fiber was rinsed with Ra-free MilliQ water to remove any salts or sediment, then partially dried.</p>
<p>Samples with low activities (&lt;0.4 dpm) were analyzed for 228Ra via 228Th ingrowth using a delayed coincidence counter (RaDeCC) (Moore, 2008), as described in Charette et al. (2015). Briefly, when 228Ra is extracted onto the Mn fiber, 228Th is extracted in parallel. Using the initial concentration of 228Th and the concentration of 228Th after 1 - 2 years, measured via RaDeCC, along with the decay constants of 228Th and 228Ra, the initial concentration of 228Ra can be calculated. Low activity samples were analyzed for 226Ra via 222Rn emanation (Key et al. 1979), as described in Charette et al. (2015). Fibers were placed in a fiber holder that was then flushed with He for 5 minutes at 250 mL/min, sealed, and left for two weeks before analysis via 222Rn ingrowth and scintillation counting. These two methods were used for low activity samples due to better method sensitivity than gamma counting (Charette et al., 2001), which was used for samples with high activities (&gt;0.4 dpm per sample). For this method, the fibers were ashed (880 °C, 16 h), homogenized, capped with epoxy resin, and left for &gt;3 weeks to obtain secular equilibrium between 226Ra and its daughter radionuclides. The samples were then counted in a well-type gamma spectrometer for 228Ra (via 228Ac at 338 keV) and 226Ra (via 214Pb at 351.9 keV) (Charette et al., 2001).</p>
<p>When not specifically listed, errors are 10%.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1736277 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1736277
completed
Matthew A. Charette
Woods Hole Oceanographic Institution
508-289-3205
Marine Chemistry & Geochemistry Clark 439, MS#25
Woods Hole
MA
02543
USA
mcharette@whoi.edu
pointOfContact
Emma J. Bullock
Woods Hole Oceanographic Institution
266 Woods Hole Road MS#25
Woods Hole
MA
02543
USA
ebullock@whoi.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
River
Sample_ID
Sample_type
Collection_method
Location_notes
Latitude
Longitude
Date_Collected
Depth_collected
Salinity
Ra223_xs
Ra223_xs_error_pcnt
Ra224_xs
Ra224_xs_error_pcnt
Ra228
Ra228_error
Ra226
Ra226_error
ratio_228_to_226
well-type gamma spectrometer
bilge or well pump
RaDeCC
theme
None, User defined
site
sample identification
sample type
comments
latitude
longitude
date
depth
salinity
radium-223
radium-224
radium-228
radium-226
ratio
featureType
BCO-DMO Standard Parameters
Gamma Ray Spectrometer
Pump
Radium Delayed Coincidence Counter
instrument
BCO-DMO Standard Instruments
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: US GEOTRACES PMT: Sources and Rates of Trace Element and Isotope Cycling Derived from the Radium Quartet
https://osprey.bco-dmo.org/project/825868
Collaborative Research: US GEOTRACES PMT: Sources and Rates of Trace Element and Isotope Cycling Derived from the Radium Quartet
<p><em>NSF Award Abstract:</em><br />
The goal of the international GEOTRACES program is to understand the distributions of trace chemical elements and their isotopes in the oceans. Naturally occurring radioactive isotopes of the element radium can be used to measure the rates of important processes in the ocean. In turn, making these rate measurements at the same time as other trace element and isotope data are collected enables a more complete interpretation of these data. The investigators propose to measure the four isotopes of radium -- Ra-223, Ra-224, Ra-226, and Ra-228 -- on a U.S. GEOTRACES expedition from Alaska to Tahiti in 2018. The radium isotope data will be particularly useful in investigating trace element input and removal processes associated with ocean boundaries (rivers, continental shelves, and the ocean bottom) and with mid-ocean ridge hydrothermal vents and the long-range dispersal of their neutrally buoyant plumes. The investigators will also investigate the processes controlling the internal cycling of the longest-lived isotope, Ra-226, compared to the element barium, which has a very similar chemistry to radium.<br />
<br />
The proposed work would address a number of key questions regarding trace element inputs from ocean boundaries and their potential impact on ocean productivity and biogeochemistry. As iron is an important nutrient for marine phytoplankton, the investigators will quantify the rates of lateral trace element transport from the Gulf of Alaska margin out to and including the offshore High Nutrient Low Chlorophyll region of the subarctic Northeast Pacific Ocean. In the ocean subsurface, they will seek to understand the trace element fluxes associated with high temperature hydrothermal venting, and the rate at which trace elements and isotopes are removed via scavenging along the hydrothermal plume. Lastly, the work will lead to an improved understanding of a marine carbonate sediment dating technique via an investigation of Ra-226 and barium fractionation processes in the upper ocean. The project will involve collaboration between two U.S. institutions and a partner in France who will analyze some of the samples. Two graduate students will participate in the project. Moore will supervise an undergraduate student through the South Carolina Alliance for Minority Participation, and will encourage this student to develop a senior thesis based on their participation in this project.</p>
PMT Radium Isotopes
largerWorkCitation
project
eng; USA
oceans
162.30161
-152.569754
57.5887
69.63049
2019-06-07
2019-09-10
0
BCO-DMO catalogue of parameters from Dissolved Radium from Kolyma (Russia), Ellice (Canada), and Kodiak Island (USA) Rivers
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/878597.rdf
Name: River
Units: unitless
Description: <p>Name of river</p>
http://lod.bco-dmo.org/id/dataset-parameter/878598.rdf
Name: Sample_ID
Units: unitless
Description: <p>Sample identifieir</p>
http://lod.bco-dmo.org/id/dataset-parameter/878599.rdf
Name: Sample_type
Units: unitless
Description: <p>Type of water sampled</p>
http://lod.bco-dmo.org/id/dataset-parameter/878600.rdf
Name: Collection_method
Units: unitless
Description: <p>Description of collection method</p>
http://lod.bco-dmo.org/id/dataset-parameter/878601.rdf
Name: Location_notes
Units: unitless
Description: <p>Notes about the location</p>
http://lod.bco-dmo.org/id/dataset-parameter/878602.rdf
Name: Latitude
Units: decimal degrees North
Description: <p>Latitude of sample location</p>
http://lod.bco-dmo.org/id/dataset-parameter/878603.rdf
Name: Longitude
Units: decimal degrees East
Description: <p>Longitude of sample location</p>
http://lod.bco-dmo.org/id/dataset-parameter/878604.rdf
Name: Date_Collected
Units: unitless
Description: <p>Date of sample collection in format YYYY-MM-DD (local time; EST)</p>
http://lod.bco-dmo.org/id/dataset-parameter/878605.rdf
Name: Depth_collected
Units: meters (m)
Description: <p>Depth in water column</p>
http://lod.bco-dmo.org/id/dataset-parameter/878606.rdf
Name: Salinity
Units: ppt
Description: <p>Salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/878607.rdf
Name: Ra223_xs
Units: dpm/100L
Description: <p>unsupported isotope concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/878608.rdf
Name: Ra223_xs_error_pcnt
Units: percent
Description: <p>Ra223_xs percent error</p>
http://lod.bco-dmo.org/id/dataset-parameter/878609.rdf
Name: Ra224_xs
Units: dpm/100L
Description: <p>unsupported isotope concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/878610.rdf
Name: Ra224_xs_error_pcnt
Units: percent
Description: <p>Ra224_xs percent error</p>
http://lod.bco-dmo.org/id/dataset-parameter/878611.rdf
Name: Ra228
Units: dpm/100L
Description: <p>228Ra isotope concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/878612.rdf
Name: Ra228_error
Units: dpm/100L
Description: <p>Ra228 error</p>
http://lod.bco-dmo.org/id/dataset-parameter/878613.rdf
Name: Ra226
Units: dpm/100L
Description: <p>226Ra isotope concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/878614.rdf
Name: Ra226_error
Units: dpm/100L
Description: <p>Ra226 error</p>
http://lod.bco-dmo.org/id/dataset-parameter/878615.rdf
Name: ratio_228_to_226
Units: unitless
Description: <p>activity ratio of 228Ra to 226Ra</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
8547
https://darchive.mblwhoilibrary.org/bitstream/1912/29227/1/dataset-878527_minor-arctic-rivers-dissolved-radium__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.878527.1
download
onLine
dataset
<p>Samples were collected in the Ellice River&nbsp;in August and September 2017, the Kolyma River in June and September 2019, and the Buskin, Sustina, Matanuska, and Knik Rivers in September 2019 . The Ellice River is located in Nunavut, Canada, on the mainland side of the Canadian Arctic Archipelago. The Kolyma River is a major river in Siberia, draining into the East Siberian Sea and represents the largest Arctic river basin underlain by continuous permafrost. The Buskin River is located on Kodiak Island, AK, while the Sustina, Matanuska, and Knik Rivers drain into Cook Inlet near Anchorage, AK.</p>
<p>The samples were collected using either a bilge or well pump and the river water was passed through a 1 or 5 μm prefilter to remove suspended sediment before being filtered at &lt;1 L/min onto Mn-coated acrylic fiber. The fiber was rinsed with Ra-free MilliQ water to remove any salts or sediment, then partially dried.</p>
<p>Samples with low activities (&lt;0.4 dpm) were analyzed for 228Ra via 228Th ingrowth using a delayed coincidence counter (RaDeCC) (Moore, 2008), as described in Charette et al. (2015). Briefly, when 228Ra is extracted onto the Mn fiber, 228Th is extracted in parallel. Using the initial concentration of 228Th and the concentration of 228Th after 1 - 2 years, measured via RaDeCC, along with the decay constants of 228Th and 228Ra, the initial concentration of 228Ra can be calculated. Low activity samples were analyzed for 226Ra via 222Rn emanation (Key et al. 1979), as described in Charette et al. (2015). Fibers were placed in a fiber holder that was then flushed with He for 5 minutes at 250 mL/min, sealed, and left for two weeks before analysis via 222Rn ingrowth and scintillation counting. These two methods were used for low activity samples due to better method sensitivity than gamma counting (Charette et al., 2001), which was used for samples with high activities (&gt;0.4 dpm per sample). For this method, the fibers were ashed (880 °C, 16 h), homogenized, capped with epoxy resin, and left for &gt;3 weeks to obtain secular equilibrium between 226Ra and its daughter radionuclides. The samples were then counted in a well-type gamma spectrometer for 228Ra (via 228Ac at 338 keV) and 226Ra (via 214Pb at 351.9 keV) (Charette et al., 2001).</p>
<p>When not specifically listed, errors are 10%.</p>
Specified by the Principal Investigator(s)
<p><strong>BCO-DMO Processing:</strong><br />
- renamed fields to comply with BCO-DMO naming conventions;<br />
- converted dates to format YYYY-MM-DD;<br />
- replaced commas with semi-colons in the Collection_method and Location_notes columns.</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
well-type gamma spectrometer
well-type gamma spectrometer
PI Supplied Instrument Name: well-type gamma spectrometer PI Supplied Instrument Description:Gamma detectors made by Canberra or Ortec. Instrument Name: Gamma Ray Spectrometer Instrument Short Name: Instrument Description: Instruments measuring the relative levels of electromagnetic radiation of different wavelengths in the gamma-ray waveband.
bilge or well pump
bilge or well pump
PI Supplied Instrument Name: bilge or well pump Instrument Name: Pump Instrument Short Name: Instrument Description: A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps
RaDeCC
RaDeCC
PI Supplied Instrument Name: RaDeCC PI Supplied Instrument Description:RaDeCCs made by Scientific Computer Instruments 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.