http://lod.bco-dmo.org/id/dataset/820232
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
2020-08-07
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
CFC-12, CFC-11, and SF6 concentrations from the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) from September to November 2018
2020-08-13
publication
2020-08-13
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-08-13
publication
https://doi.org/10.26008/1912/bco-dmo.820232.1
Rana A. Fine
University of Miami Rosenstiel School of Marine and Atmospheric Science
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: Fine, R. (2020) CFC-12, CFC-11, and SF6 concentrations from the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) from September to November 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-08-13 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.820232.1 [access date]
CFC-12, CFC-11, and SF6 concentrations for GP15 cruise Dataset Description: <p>CFC-12, CFC-11, and SF6 concentrations from the US GEOTRACES Pacific Meridional Transect (PMT) cruises, RR1814 and RR1814 (GP15), on the R/V Roger Revelle from September to November 2018.</p> Methods and Sampling: <p>Samples were taken from Niskin bottles. They were unfiltered. Note there is no SF6 data for the first leg of the cruise (RR1814).</p>
<p>Procedures:<br />
Fill 300 ml and flush BOD bottles with water in a one liter overflow bottle. Cap bottle underwater. Analysis is on a custom-built purge and trap gas chromatography with electron capture detection. Data were processed using Labview and Excel.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1737041 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1737041
completed
Rana A. Fine
University of Miami Rosenstiel School of Marine and Atmospheric Science
305-421-4722
4600 Rickenbacker Causeway
Miami
FL
33149-1098
USA
rfine@miami.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
STNNBR
CASTNO
SAMPNO
BTLNBR
BTLNBR_FLAG_W
GEOTRC_EVENTNO
GEOTRC_SAMPNO
DATE
TIME
ISO_DateTime_UTC
LATITUDE
LONGITUDE
DEPTH
CTDPRS
CTDTMP
CTDSAL
SF6_D_CONC_BOTTLE
SF6_D_CONC_BOTTLE_FLAGW
CFC_12_D_CONC_BOTTLE
CFC_12_D_CONC_BOTTLE_FLAGW
CFC_11_D_CONC_BOTTLE
CFC_11_D_CONC_BOTTLE_FLAGW
custom-built purge and trap gas chromatography with electron capture detection
custom-built purge and trap gas chromatography with electron capture detection
theme
None, User defined
station
cast
bottle
quality flag
event
sample identification
date
time of day
ISO_DateTime_UTC
latitude
longitude
depth_w
water pressure
water temperature at measurement depth
salinity
SF6
CFC-12
CFC-11
featureType
BCO-DMO Standard Parameters
Automated Purge and Trap System
Gas Chromatograph
Niskin bottle
instrument
BCO-DMO Standard Instruments
RR1814
RR1815
service
Deployment Activity
Seattle, WA to Hilo, HI
Hilo, HI to Papeete, French Polynesia
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.
U.S. GEOTRACES
http://www.geotraces.org/
U.S. GEOTRACES
GEOTRACES is a SCOR sponsored program; and funding for program infrastructure development is provided by the U.S. National Science Foundation.
GEOTRACES gained momentum following a special symposium, S02: Biogeochemical cycling of trace elements and isotopes in the ocean and applications to constrain contemporary marine processes (GEOSECS II), at a 2003 Goldschmidt meeting convened in Japan. The GEOSECS II acronym referred to the Geochemical Ocean Section Studies To determine full water column distributions of selected trace elements and isotopes, including their concentration, chemical speciation, and physical form, along a sufficient number of sections in each ocean basin to establish the principal relationships between these distributions and with more traditional hydrographic parameters;
* To evaluate the sources, sinks, and internal cycling of these species and thereby characterize more completely the physical, chemical and biological processes regulating their distributions, and the sensitivity of these processes to global change; and
* To understand the processes that control the concentrations of geochemical species used for proxies of the past environment, both in the water column and in the substrates that reflect the water column.
GEOTRACES will be global in scope, consisting of ocean sections complemented by regional process studies. Sections and process studies will combine fieldwork, laboratory experiments and modelling. Beyond realizing the scientific objectives identified above, a natural outcome of this work will be to build a community of marine scientists who understand the processes regulating trace element cycles sufficiently well to exploit this knowledge reliably in future interdisciplinary studies.
Expand "Projects" below for information about and data resulting from individual US GEOTRACES research projects.
U.S. GEOTRACES
largerWorkCitation
program
US GEOTRACES Pacific Meridional Transect (GP15)
http://www.geotraces.org/
US GEOTRACES Pacific Meridional Transect (GP15)
<p>A 60-day research cruise took place in 2018 along a transect form Alaska to Tahiti at 152° W. A description of the project titled "<em>Collaborative Research: Management and implementation of the US GEOTRACES Pacific Meridional Transect</em>", funded by NSF, is below. Further project information is available on the <a href="https://www.geotraces.org/" target="_blank">US GEOTRACES website</a> and on the <a href="https://geotraces-gp15.com/" target="_blank">cruise blog</a>. A detailed <a href="https://datadocs.bco-dmo.org/docs/geotraces/GEOTRACES_PMT/casciotti/data_docs/GP15_Cruise_Report_with_ODF_Report.pdf" target="_blank">cruise report is also available</a> as a PDF.</p>
<p><em>Description from NSF award abstract:</em><br />
GEOTRACES is a global effort in the field of Chemical Oceanography in which the United States plays a major role. The goal of the GEOTRACES program is to understand the distributions of many elements and their isotopes in the ocean. Until quite recently, these elements could not be measured at a global scale. Understanding the distributions of these elements and isotopes will increase the understanding of processes that shape their distributions and also the processes that depend on these elements. For example, many "trace elements" (elements that are present in very low amounts) are also important for life, and their presence or absence can play a vital role in the population of marine ecosystems. This project will launch the next major U.S. GEOTRACES expedition in the Pacific Ocean between Alaska and Tahiti. The award made here would support all of the major infrastructure for this expedition, including the research vessel, the sampling equipment, and some of the core oceanographic measurements. This project will also support the personnel needed to lead the expedition and collect the samples.</p>
<p>This project would support the essential sampling operations and infrastructure for the U.S. GEOTRACES Pacific Meridional Transect along 152° W to support a large variety of individual science projects on trace element and isotope (TEI) biogeochemistry that will follow. Thus, the major objectives of this management proposal are: (1) plan and coordinate a 60 day research cruise in 2018; (2) obtain representative samples for a wide variety of TEIs using a conventional CTD/rosette, GEOTRACES Trace Element Sampling Systems, and in situ pumps; (3) acquire conventional CTD hydrographic data along with discrete samples for salinity, dissolved oxygen, algal pigments, and dissolved nutrients at micro- and nanomolar levels; (4) ensure that proper QA/QC protocols are followed and reported, as well as fulfilling all GEOTRACES intercalibration protocols; (5) prepare and deliver all hydrographic data to the GEOTRACES Data Assembly Centre (via the US BCO-DMO data center); and (6) coordinate all cruise communications between investigators, including preparation of a hydrographic report/publication. This project would also provide baseline measurements of TEIs in the Clarion-Clipperton fracture zone (~7.5°N-17°N, ~155°W-115°W) where large-scale deep sea mining is planned. Environmental impact assessments are underway in partnership with the mining industry, but the effect of mining activities on TEIs in the water column is one that could be uniquely assessed by the GEOTRACES community. In support of efforts to communicate the science to a wide audience the investigators will recruit an early career freelance science journalist with interests in marine science and oceanography to participate on the cruise and do public outreach, photography and/or videography, and social media from the ship, as well as to submit articles about the research to national media. The project would also support several graduate students.</p>
U.S. GEOTRACES PMT
largerWorkCitation
project
GEOTRACES Pacific Meridional Transect: Measurement of chlorofluorocarbons and sulfur hexafluoride
https://osprey.bco-dmo.org/project/779323
GEOTRACES Pacific Meridional Transect: Measurement of chlorofluorocarbons and sulfur hexafluoride
<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. The National Science Foundation is supporting a U.S. GEOTRACES sampling expedition in the Pacific Ocean in 2018, that will conduct full ocean depth at sites extending south from Alaska to Tahiti. The purpose of this project is to measure the concentrations of chlorofluorocarbon (CFC) compounds and of sulfur hexafluoride (SF6) along this transect of stations. These gas measurements can be used to determine the "ages" of water parcels and the rates of important oceanographic and biogeochemical processes. Such information is essential to the interpretation of the trace element and isotope data that will be gathered as part of GEOTRACES. The trace gas concentrations, ventilation ages, and rate data will all be made available to other investigators within six months of collection, forming an important foundation for the GEOTRACES Pacific program.</p>
<p>The project team will measure CFC-11, CFC-12, and SF6 concentrations aboard the 2018 Pacific Meridional Transect. Beyond the concentration measurements, the project has the following specific objectives: 1) Calculate tracer ages and identify the relative extent of ventilation and dilution of thermocline and intermediate water masses within which Trace Elements and their Isotopes (TEIs) reside across different circulation regimes, 2) Calculate rates of biochemically important processes (including apparent oxygen utilization and denitrification rates) and distinguish between the contributions from physical and biogeochemical processes across the different circulation regimes, 3) Put tracer and hydrographic GEOTRACES data into context of larger space and time scales using historical tracer, hydrographic, ARGO CTD and oxygen data. The CFC and SF6 tracer data will contribute to interpretation of the key GEOTRACES trace elements and isotopes by characterizing physical processes, which can affect trace element speciation and internal cycling. Calculated tracer ages are the backbone of this project and are the primary service for other GEOTRACES PIs. Tracer ages will be used to address each of the objectives. As tracer ages are an important part of the contribution to the GEOTRACES program, uncertainties will be estimated for the ages related to internal ocean variability and effects of mixing due to non-stationarity of the atmospheric transients.</p>
PMT CFC SF6
largerWorkCitation
project
eng; USA
oceans
Seattle, WA to Hilo, HI; Hilo, HI to Papeete, French Polynesia
-156.9628
-151.9862
-20
56.0585
2018-09-24
2018-11-23
Pacific Meridional Transect along 152W (GP15)
0
BCO-DMO catalogue of parameters from CFC-12, CFC-11, and SF6 concentrations from the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) from September to November 2018
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/820370.rdf
Name: STNNBR
Units: unitless
Description: <p>Station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/820371.rdf
Name: CASTNO
Units: unitless
Description: <p>Cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/820372.rdf
Name: SAMPNO
Units: unitless
Description: <p>Sample bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/820373.rdf
Name: BTLNBR
Units: unitless
Description: <p>Bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/820374.rdf
Name: BTLNBR_FLAG_W
Units: unitless
Description: <p>Bottle quality flag; see WHP quality codes for the water bottle itself</p>
http://lod.bco-dmo.org/id/dataset-parameter/820375.rdf
Name: GEOTRC_EVENTNO
Units: unitless
Description: <p>Event number</p>
http://lod.bco-dmo.org/id/dataset-parameter/820376.rdf
Name: GEOTRC_SAMPNO
Units: unitless
Description: <p>GEOTRACES sample number</p>
http://lod.bco-dmo.org/id/dataset-parameter/820377.rdf
Name: DATE
Units: unitless
Description: <p>Date; format: YYYYMMDD</p>
http://lod.bco-dmo.org/id/dataset-parameter/820378.rdf
Name: TIME
Units: unitless
Description: <p>Time; format: hh:mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/820379.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Sampling date and time (UTC) formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ</p>
http://lod.bco-dmo.org/id/dataset-parameter/820380.rdf
Name: LATITUDE
Units: decimal degrees North
Description: <p>Latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/820381.rdf
Name: LONGITUDE
Units: decimal degrees East
Description: <p>Longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/820382.rdf
Name: DEPTH
Units: meters (m)
Description: <p>Bottom depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/820383.rdf
Name: CTDPRS
Units: decibars
Description: <p>Sample/sensor pressure from CTD</p>
http://lod.bco-dmo.org/id/dataset-parameter/820384.rdf
Name: CTDTMP
Units: degrees Celsius
Description: <p>Temperature from CTD sensor in the ITS-90 convention</p>
http://lod.bco-dmo.org/id/dataset-parameter/820385.rdf
Name: CTDSAL
Units: psu
Description: <p>Practical salinity from CTD sensor on the PSS-1978 scale</p>
http://lod.bco-dmo.org/id/dataset-parameter/820386.rdf
Name: SF6_D_CONC_BOTTLE
Units: femtomole/kg (fmol/kg)
Description: <p>SF6 concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/820387.rdf
Name: SF6_D_CONC_BOTTLE_FLAGW
Units: unitless
Description: <p>WOCE data quality flag for SF6_D_CONC_BOTTLE</p>
http://lod.bco-dmo.org/id/dataset-parameter/820388.rdf
Name: CFC_12_D_CONC_BOTTLE
Units: picomole/kg (pmol/kg)
Description: <p>CFC-12 concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/820389.rdf
Name: CFC_12_D_CONC_BOTTLE_FLAGW
Units: unitless
Description: <p>WOCE data quality flag for CFC_12_D_CONC_BOTTLE</p>
http://lod.bco-dmo.org/id/dataset-parameter/820390.rdf
Name: CFC_11_D_CONC_BOTTLE
Units: picomole/kg (pmol/kg)
Description: <p>CFC-11 concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/820391.rdf
Name: CFC_11_D_CONC_BOTTLE_FLAGW
Units: unitless
Description: <p>WOCE data quality flag for CFC_11_D_CONC_BOTTLE</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
114872
https://darchive.mblwhoilibrary.org/bitstream/1912/26064/1/dataset-820232_gp15-cfcs-and-sf6__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.820232.1
download
onLine
dataset
<p>Samples were taken from Niskin bottles. They were unfiltered. Note there is no SF6 data for the first leg of the cruise (RR1814).</p>
<p>Procedures:<br />
Fill 300 ml and flush BOD bottles with water in a one liter overflow bottle. Cap bottle underwater. Analysis is on a custom-built purge and trap gas chromatography with electron capture detection. Data were processed using Labview and Excel.</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing:<br />
- renamed parameters;<br />
- added date/time field in ISO8601 format;<br />
- replaced "-99" with "nd" ("no data");<br />
- rounded&nbsp;CFC_12_D_CONC_BOTTLE and&nbsp;CFC_11_D_CONC_BOTTLE values to 4 decimal places.</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
custom-built purge and trap gas chromatography with electron capture detection
custom-built purge and trap gas chromatography with electron capture detection
PI Supplied Instrument Name: custom-built purge and trap gas chromatography with electron capture detection Instrument Name: Automated Purge and Trap System Instrument Short Name: Instrument Description: This equipment removes dissolved gases from the water samples, traps the extracted compounds on a cold trap and then heats the trap and injects the trapped gases into the gas chromatograph. It is automated and controlled by a laptop computer.
custom-built purge and trap gas chromatography with electron capture detection
custom-built purge and trap gas chromatography with electron capture detection
PI Supplied Instrument Name: custom-built purge and trap gas chromatography with electron capture detection 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/
PI Supplied Instrument Name: PI Supplied Instrument Description:Samples were taken from Niskin bottles. They were unfiltered. 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: RR1814
RR1814
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
RR1814
Gregory A. Cutter
Old Dominion University
https://datadocs.bco-dmo.org/docs/geotraces/GEOTRACES_PMT/casciotti/data_docs/GP15_Cruise_Report_with_ODF_Report.pdf
Report describing RR1814
Cruise: RR1815
RR1815
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
RR1815
Gregory A. Cutter
Old Dominion University
https://datadocs.bco-dmo.org/docs/geotraces/GEOTRACES_PMT/casciotti/data_docs/GP15_Cruise_Report_with_ODF_Report.pdf
Report describing RR1815
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel