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An Introduction to the Biological and Chemical Oceanography Data Management Office (BCO-DMO)


Biological and Chemical Oceanography Data Management Office (BCO-DMO) Cyndy Chandler ... Woods Hole Oceanographic Institution. 8 September 2007. GEOTRACES Data ... – PowerPoint PPT presentation

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Title: An Introduction to the Biological and Chemical Oceanography Data Management Office (BCO-DMO)

An Introduction to the Biological and Chemical
Oceanography Data Management Office (BCO-DMO)
  • Cyndy Chandler
  • BCO-DMOWoods Hole Oceanographic Institution8
    September 2007GEOTRACES Data-Model Synergy
    Workshop Delmenhorst, Germany

  • GEOTRACES has been identified as a project that
    will generate data and results of interest to the
    scientific community served by the Ocean Carbon
    Biogeochemistry Office

The Biological and Chemical Oceanography Data
Management Office (BCO-DMO)
The BCO-DMO was initially created in late 2006 to
serve PIs funded by the US NSF Biological and
Chemical Oceanography Sections. It has since
been expanded to serve the data management needs
of the Ocean Carbon and Biogeochemistry group of
researchers in the US. It is a location from
which marine biogeochemical and ecological data
and information developed in the course of
scientific research can easily be disseminated,
protected, and stored on short and intermediate
The Office is located at the Woods Hole
Oceanographic Institution. The Web-site is
http// The Office is managed
by Robert Groman ( Cyndy
Chandler ( David Glover
( Peter Wiebe (
The Biological and Chemical Oceanography Data
Management Office (BCO-DMO)
  • the BCO-DMO is a combination of the formerly
    independent data management offices for US GLOBEC
    and US JGOFS
  • BCO-DMO will continue to manage the US JGOFS and
    US GLOBEC data collections as well as data from
    new programs, including programs associated with

The relationship of BCO-DMO to existing and
proposed entities.
The BCO-DMO data system will be designed to be
interoperable with other data systems to
facilitate discovery of and access to ocean
science data and supporting documentation.
Guiding Principles of Data Managementa
stewardship philosophy
  • quality assurance of data
  • treat all information as data
  • data that lacks sufficient metadata has limited
    value beyond the research program for which it
    was collected
  • metadata should include sufficient information to
    support discovery, value assessment and accurate
    secondary use (re-use of data)
  • The data collection generated by a research
    project is a valuable component of its legacy.

Important Concepts
  • its all data !
  • decide what metadata is important to support
    GEOTRACES science
  • store metadata in a database that will enable
    custom generated lists of selected information,
    in a variety of formats, and be compatible
    with various standards The metadata database
    will also support data discovery through a robust
    search interface.

  • heterogeneity of results . . .both data type and
    content type
  • model results . . .what to preserve ?
  • description
  • input
  • code
  • results
  • management of full set of results and design of
    single interface that provides access to all
    result types

Data Inventory
  • a list of all expected results from a sampling
    program (cruise) that includes PI/co-PI names and
    brief description of expected measurements
  • for example
  • PIname Robert Anderson
  • co-PI none
  • Measurement Radionuclide data from bottle
    samples includingtemperature, salinity,
    thorium-232, thorium-230, protactinium-231 and

  • project, people and dataset profiles
  • for example a dataset profile contributed with
    each data set includesPI name(s) Affiliation
    when data collected (e.g. Institution)dataset
    description Particulate Organic Matter (POC and
    PON)project GEOTRACESplatform type (e.g.
    ship, mooring, satellite)deployment (e.g.
    cruise ID)

Sampling Event Log
  • one event log for each cruise a comprehensive
    list of uniquely numbered sampling events,
    includingevent number, start and end date and
    time (in GMT/UTC), time zone, latitude and
    longitude decimal degrees, sampling device name
    or code, persons name responsible for sampling,
    station/cast number, commentsand optionally
    including local date/time, project-specific
  • GEOTRACES DMC has suggested tagging each sample
    with a unique sample ID that is a combination of
    cruise, station, cast and bottle number

GEOTRACES Data Managementas proposed in the
GEOTRACES DMC report (Dec. 2005)
  • oversight of DM is responsibility of DMC and a
    Data Liaison Officer (located in IPO) reporting
    to SSC
  • the DLO would be responsible for maintaining
    lists of GEOTRACES cruises (and contributing
    projects) and data sets from participating
    national programs
  • details of BCO-DMO support for US GEOTRACES data
    management should be worked out in the near future

Intercalibration Cruises present an opportunity
to establish best practices for sampling and
analytical protocols and also metadata essential
to support GEOTRACES science themes
Web Resources
  • BCO-DMO http//
  • US GLOBEC http//
  • US JGOFS http//
  • OCB DMO http//
  • US OCB http//

Thank you !
Questions ?
  • Anyone from GEOTRACES attending?
  • 17-21 September 2007 Shanghai, ChinaIMBER /
    LOICZ Continental Margins Open Science Conference
  • Abstract submission is closed but registration is
    still open. https//
  • Session 1 Ocean-Shelf Biogeochemical Exchanges
    Session 2 Continental Shelf Biogeochemistry and
    Couplings with Benthic Systems
    Session 3 Continental Shelf Carbon in a High CO2
    World Session 4 Continental Shelf Ecosystems
    from High to Low LatitudesSession 5 Integrated
    Observations and Modeling
    Visions and Reality Session 6 Eutrophication and
    Oligotrophication in Coastal Systems Session 7
    Low Oxygen on Continental ShelvesSession 8
    Sustainable Use of Continental Shelf Resources

IMBER / LOICZ Session 5
  • Session 5) Integrated Observations and Modeling
    Visions and RealityFocus Long time series,
    remote sensing, and observation systems.  New
    approaches for on-line and synoptic monitoring. 
    Assimilation of these data in multi-dimensional,
    coupled physical-biological models that address
    continental shelf processes, cross-shelf
    exchanges, and shelf break dynamics. Ecosystem
    models in pursuit of better understanding of
    human-induced stresses, which compromise
    biodiversity, ecosystem stability and
    biogeochemical processes, are sought.

Questions ??
  • What are the key components of data systems that
    support the modeling effort ?
  • robust metadata e.g. sufficient for
    integrationincluding precision, accuracy, limits
    of detection
  • data set sub-setting
  • download capability
  • user-selectable formats

Technical Details of BCO-DMO Data Management
  • Generate readily accessible data resource of high
    quality data (including robust metadata)
  • Maximize data system interoperability
  • BCO-DMO is based at Woods Hole Oceanographic
  • Web access http//

Technical Details of BCO-DMO Data Management
System Metadata profiles and lists
  • research projects identified as being GEOTRACES
    core projects and related
  • sampling programs (cruises, moorings/sediment
    traps, lab experiments, remote sensing,
  • people profiles (PIs, cruise participants
    responsible for sampling, data analysts, lab
  • data set profiles

Technical Details of BCO-DMO Data Management
SystemCruise-specific example
  • O1 report, data set inventory, sampling logs,
    shipboard data
  • O2 basic hydrography (CTD/Niskin)
  • O3 data sets within 2 years
  • O4 data sets excluded from 2 year contribution
    target date
  • QC review done on contributed data
  • according to GEOTRACES standards
  • in collaboration with originating PI and staff
  • Data and metadata contributed and ingested into

Technical Details of BCO-DMO Data Management
SystemAccess to data and results
  • Data access provided in several ways
  • via any standard Web browser client user
  • through a GIS application (Open Source,
    OGC-compliant MapServer)
  • a directory listing from the data holdings
  • custom search engine that facilitates data
  • query against variety of fields PI name, project
    name, geographic area, temporal range, parameter
  • Web Services (SOA)

Technical Details of BCO-DMO Data Management
  • sample distribution maps (lat/lon station
    location maps)
  • simple X/Y plots property/property
  • data sub-setting capability (joining, selection
    and projection)
  • download in variety of user-selectable formats
  • additional functionality to support
    community/contributing projects
  • generate Summary reports
  • data set descriptions generated to comply with a
    variety of metadata content standards (ISO 19115,
  • data reports on digital media (CD or DVD)
  • data catalog status reports (inventory) for
    Special Issue publications (if desired)
  • final data collection contributed to Data Archive
    Center (WDC, or ODC or Data Library)