DO and temperature from a soloDO logger measured with Alvin during the R/V Atlantis cruise AT26-24 at the Dorado Outcrop near Cocos Ridge from November to December 2014

Website: https://www.bco-dmo.org/dataset/662060
Data Type: Cruise Results
Version:
Version Date: 2016-10-20

Project
» Discovery, sampling, and quantification of flows from cool yet massive ridge-flank hydrothermal springs on Dorado Outcrop, eastern Pacific Ocean (Dorado Outcrop)

Program
» Center for Dark Energy Biosphere Investigations (C-DEBI)
ContributorsAffiliationRole
Wheat, C. GeoffreyUniversity of Alaska Fairbanks (UAF)Principal Investigator, Contact
Fisher, AndrewUniversity of California-Santa Cruz (UCSC)Co-Principal Investigator
Hulme, SamuelMoss Landing Marine Laboratories (MLML)Co-Principal Investigator
McManus, JamesUniversity of Akron (UAkron)Co-Principal Investigator
Orcutt, Beth N.Bigelow Laboratory for Ocean SciencesCo-Principal Investigator
York, Amber D.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

This dataset contains temperature and dissolved oxygen collected by the submersible Alvin which was integrated with a prototype of the soloDO logger.  Approximate latitude, longitude, and depth of the Dorado outcrop sampling site are also included in this dataset.  These data were collected during the R/V Atlantis cruise AT26-24. 


Methods & Sampling

In situ sensor data was collected by Alvin with the soloDO logger (RBR Ltd., Canada). The prototype recorded temperature using an internal RBR probe (0.0018 C resolution), and dissolved oxygen using an Aandera DO probe.

The R/V Atlantis cruise AT26-24 went to Dorado Outcrop off the west coast of Costa Rica in the Pacific Ocean at location 9 degrees 5.5 minutes north, 87 degrees 6.0 minutes west.  For more information about operations of this cruise see the AT26-24 deployment page and cruise report.


Data Processing Description

The data have not been processed further.

BCO-DMO Processing Notes:

  • added a conventional header with dataset name, PI name, version date
  • modified parameter names to conform with BCO-DMO naming conventions
  • Date and Time values used to generate ISO DateTime format
  • added approximate latitude and longitude in data for the sampling site

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Data Files

File
RBR.csv
(Comma Separated Values (.csv), 378.78 KB)
MD5:002a61d4d9a5b2962a165a26f3149f2d
Primary data file for dataset ID 662060

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Parameters

ParameterDescriptionUnits
deployment_nameInstrument deployment name includes the order (first or second) of deployment and location; R indicates Marker R and KW indicates the deployment was between markers K and W. unitless
ISO_DateTime_UTCDate/time (UTC) in ISO format YYYY-mm-ddTHH:MM:SS[.xx] unitless
tempTemperature degrees Celsius (C)
DODissolved Oxygen micromoles per liter (uM)
lat_approxApproximate latitude of sampling area (Dorado Outcrop) decimal degrees
lon_approxApproximate longitude of sampling area (Dorado Outcrop); west is negative decimal degrees
dateDate (UTC) in format yyyy-mm-dd unitless
timeTime (UTC) in format HHMM unitless
siteSite of instrument deployment; KW indicates the deployment was between markers K and W. unitless


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Instruments

Dataset-specific Instrument Name
prototype soloDO
Generic Instrument Name
Oxygen Sensor
Dataset-specific Description
Prototype of the soloDO logger (RBR Ltd., Canada). 
Generic Instrument Description
An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed

Dataset-specific Instrument Name
prototype soloDO logger
Generic Instrument Name
Temperature Logger
Dataset-specific Description
Prototype of the soloDO logger (RBR Ltd., Canada) also measured temperature.
Generic Instrument Description
Records temperature data over a period of time.


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Deployments

AT26-24

Website
Platform
R/V Atlantis
Report
Start Date
2014-11-30
End Date
2014-12-12
Description
Research was conducted on this cruise as part of the C-DEBI project titled "Discovery, sampling, and quantification of flows from cool yet massive ridge-flank hydrothermal springs on Dorado Outcrop, eastern Pacific Ocean" (see: http://www.bco-dmo.org/project/627844).

AT26-24_Alvin_Dives

Website
Platform
Alvin
Start Date
2014-12-01
End Date
2014-12-11
Description
dives numbers: 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 see data page: http://dmoserv3.bco-dmo.org/jg/serv/BCO-DMO/Dorado_Outcrop/AlvinLogAT26_... for location information


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Project Information

Discovery, sampling, and quantification of flows from cool yet massive ridge-flank hydrothermal springs on Dorado Outcrop, eastern Pacific Ocean (Dorado Outcrop)


Coverage: Dorado Outcrop near Cocos Ridge (9N, 87W)


Description from NSF award abstract:
Pristine fluids from a typical ridge-flank hydrothermal system have never been sampled, mainly because it has not been possible to locate a site of focused discharge where representative samples could be collected. The PIs have located a small basement feature, Dorado outcrop, on 23 m.y.-old seafloor on the eastern flank of the East Pacific Rise that they plan to sample to determine the fluid composition, and to assess the rate of discharge from the outcrop, so that they can quantify the chemical impact of this hydrothermal system. They plan an 18-day expedition that combines the surveying capabilities of the AUV Sentry (bathymetric, sub-bottom sonar, photo mosaics, water column anomalies) and an ocean-class vessel capable of collecting high-quality multi-beam data and CTD samples, and supporting the survey and sampling capabilities of the ROV Jason II for collection of spring and plume fluids, heat flow data, sediment push cores, and still and video photography. These data and samples will be combined hopefully to generate the first well-constrained estimates of hydrothermal flows from Dorado outcrop. This expedition will result in the collection of samples and data from a "fire hose" of ridge-flank, hydrothermal system, challenging the commonly held view that discharge from ridge flank hydrothermal systems occurs primarily from diffuse seeps.



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Program Information

Center for Dark Energy Biosphere Investigations (C-DEBI)


Coverage: Global


The mission of the Center for Dark Energy Biosphere Investigations (C-DEBI) is to explore life beneath the seafloor and make transformative discoveries that advance science, benefit society, and inspire people of all ages and origins.

C-DEBI provides a framework for a large, multi-disciplinary group of scientists to pursue fundamental questions about life deep in the sub-surface environment of Earth. The fundamental science questions of C-DEBI involve exploration and discovery, uncovering the processes that constrain the sub-surface biosphere below the oceans, and implications to the Earth system. What type of life exists in this deep biosphere, how much, and how is it distributed and dispersed? What are the physical-chemical conditions that promote or limit life? What are the important oxidation-reduction processes and are they unique or important to humankind? How does this biosphere influence global energy and material cycles, particularly the carbon cycle? Finally, can we discern how such life evolved in geological settings beneath the ocean floor, and how this might relate to ideas about the origin of life on our planet?

C-DEBI's scientific goals are pursued with a combination of approaches:
(1) coordinate, integrate, support, and extend the research associated with four major programs—Juan de Fuca Ridge flank (JdF), South Pacific Gyre (SPG), North Pond (NP), and Dorado Outcrop (DO)—and other field sites;
(2) make substantial investments of resources to support field, laboratory, analytical, and modeling studies of the deep subseafloor ecosystems;
(3) facilitate and encourage synthesis and thematic understanding of submarine microbiological processes, through funding of scientific and technical activities, coordination and hosting of meetings and workshops, and support of (mostly junior) researchers and graduate students; and
(4) entrain, educate, inspire, and mentor an interdisciplinary community of researchers and educators, with an emphasis on undergraduate and graduate students and early-career scientists.

Note: Katrina Edwards was a former PI of C-DEBI; James Cowen is a former co-PI.

Data Management:
C-DEBI is committed to ensuring all the data generated are publically available and deposited in a data repository for long-term storage as stated in their Data Management Plan (PDF) and in compliance with the NSF Ocean Sciences Sample and Data Policy. The data types and products resulting from C-DEBI-supported research include a wide variety of geophysical, geological, geochemical, and biological information, in addition to education and outreach materials, technical documents, and samples. All data and information generated by C-DEBI-supported research projects are required to be made publically available either following publication of research results or within two (2) years of data generation.

To ensure preservation and dissemination of the diverse data-types generated, C-DEBI researchers are working with BCO-DMO Data Managers make data publicly available online. The partnership with BCO-DMO helps ensure that the C-DEBI data are discoverable and available for reuse. Some C-DEBI data is better served by specialized repositories (NCBI's GenBank for sequence data, for example) and, in those cases, BCO-DMO provides dataset documentation (metadata) that includes links to those external repositories.



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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)
NSF Division of Ocean Sciences (NSF OCE)

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