5th November 13:00-15:30 UTC


During the Third Polar Data Forum (PDF) held in Helsinki in November of 2019, members of the Polar Data Community gathered to share information and knowledge and to make practical progress towards greater data sharing and interoperability. PDF III followed on a series of meetings that have resulted in continuing advancements in the areas of federated search, identification and development of shared vocabularies and formal semantics, data policy, community building and other topics. Since PDF III, the dialogue has continued. In March and early April, the Arctic data community met during the online Arctic Observing Summit (https://aos2020agenda.org/). The Standing Committee on Arctic Data Management (SCADM) and members of the Southern Ocean Observing System (SOOS) Program have met regularly. There is broad agreement between these groups and the IASC-SAON Arctic Data Committee (ADC) that meeting more frequently will help us to continue making practical progress on our shared goals.
During these challenging times, meeting in person is not feasible.  However, recent online events have demonstrated that we can successfully collaborate using virtual tools.  
We would like to invite you to join us online on 5th November September 13:00 - 15:30 UTC to continue our efforts to enhance polar data sharing and interoperability.  This is an online workshop in a planned series of bi-monthly online workshops convened by the ADC, SCADM, SOOS, the Arctic Observing Summit Working Group 4, the Global Cryosphere Watch, and the World Data System on behalf of the polar data community.

Due to the constraints of our virtual platform, participation is limited. Registration is required. Connection information for the virtual meeting will be provided to registered participants closer to the event time.  

To register, please complete the form found here (link updated 6th October)
Draft agenda:

1. Welcome, Housekeeping, and Move into breakout rooms (13:00-13:05)

  • Plans for next Polar Data Forum
  • Adding Arctic Spatial Data Infrastructure team as a co-convener of this workshop/hackathon
  • Engaging in the SAON ROADS process (Arctic)

Introductory remarks, overview of recent developments and objectives for the meeting series can be found in the documentation from the first workshop on 30th June 2020. An introduction to the workshop is found as this recording by Peter Pulsifer from the first workshop on 30th June 2020.

13:05 - 13:20 Semantics for the UN Decade of Ocean Science for Sustainability

Pier Luigi Buttigieg and Rebekah Ingram 

Presentation on dataset definitions and the progress on getting community input for the data, information, and (digital) knowledge definitions in the Implementation Plan of the United Nations Decade of Ocean Science for Sustainable Development 2021 – 2030 (v2.0)

    • Data: A set of values, symbols, or signs (recorded on any type of medium) that represent one or more properties of an entity. For example, the numbers generated by a sensor, values derived from a model or analysis, text entered into a survey, or the raw text of a document.
    • Information: Products derived from data that lead to a greater understanding of an entity. For example, (i) the interpretation of a range of data from an array of conductivity sensors across the Arctic Ocean that informs us about that ocean’s salinity range or (ii) the narrative text of a report on harmful algal blooms that informs the reader on the timing of these blooms
    • Knowledge: An abstract representation (i.e. a mental model) of an entity or system of entities which: (i) is constructed from a substantial collection of information, (ii) grants its bearer reliable familiarity with that entity, and (iii) can be used to reason and take action about that entity based on agreement within a society or group on what constitutes evidence. For example, an expert with knowledge about the salinity range of the Arctic Ocean (constructed from large amounts of information on the topic) would be able to reason that a salinity value of 43% is a likely error, rather than a real measurement
    • Indigenous and local knowledge: Refers to the understandings, skills and philosophies developed by societies with long histories of interaction with their natural surroundings. For rural and Indigenous peoples, local knowledge informs decision-making about fundamental aspects of day-to-day life. This knowledge is integral to a cultural complex that also encompasses language, systems of classification, resource use practices, social interactions, ritual and spirituality.
    • Digital knowledge: Knowledge, which has been encoded in a machine-readable and actionable form.

13:20 - 13:45 Discussion on the proposed definitions. 

  • Do these definitions meet the needs we identified in the July and September meetings?
  • How well do they map to existing schema.org tags?
  • Can we perceive any particular challenges to adopting them in polar regions? 


2. Working Sessions

Breakout Working Group 1: Federated Search. Hosted by POLDER (https://polder.info)
& Breakout Working Group 2: Vocabularies and Semantics. Hosted by the ADC-IARPC-SCADM Vocabularies and Semantics Working Group (https://arcticdc.org/activities/core-projects/vocabularies-and-semantics-wg)

13:45 - 13:50 Welcome to the POLDER/Semantics WG Session

13:50 - 14:00 RDA’s Schema Crosswalk

Chantelle Verhey

Presentation on the RDA work on cross-walking existing metadata fields to schema.org.  

  • Any other products that would be useful for the community?
  • Announcement of Intro to SDO Doc, comments/questions/concerns?

14:00 - 14:20 Tea Break

14:20 - 14:40 Roadmap for 2021

With 2020 drawing to a close, now is a good opportunity to plan out the broad shape of our activities for 2021, to make sure that POLDER, the Arctic Semantics Group, and the Polar To Global workshops are making strong progress towards interoperability in metadata that will help us get to true federated metadata search. 

Possible items for our roadmap (subject to group discussion):

  • Finalise and publish our best practice guidance for schema.org implementation
  • Expand our collection of template schema.org records for diverse data types
  • Update the matrix of metadata harvesting relationships, probably via a to-be-developed web interface that feeds the graph of relationships
  • Finalise the paper of recommendations for polar data managers
  • Publish the paper on the results of the harvesting relationships (after the matrix update)

14:40 - 15:10 Best Practice Documentation

  • Decision time. Let’s make a list of mandatory fields for our best practice documentation
    • Do we want to have fields that are “mandatory if applicable”? 
    • Do we want to have fields that are “mandatory for purpose”?
    • Do we want to make it mandatory to fill in one of a subset of options?
    • Agree on a standard term for people to fill in if they really can’t fill in a mandatory field because the answer is irrelevant or unknown (e.g. “N/A”, “unknown)
  • Potential fields that we might want to make mandatory:
    • Title
    • Author(s)
    • Owner(s)
    • Spatial information 
    • Temporal information
    • Lineage/authoritative source/sameAs
    • Citation
    • Copyright/ownership statement
    • URL for landing page
    • Unique identifier
    • Version
    • What have we missed?

15:10 - 15:30 Finalising discussions on specific fields from the September meeting

  • Which temporal information formats will we support?
  • Which spatial information formats will we support?
  • How to define licencing/ownership statement/copyright

15:30 Close

Task on hold for the next meeting:

  • Guidance for robots.txt and sitemap.xml (leave for SOSO?)
  • Update the template we worked on in Helsinki (CCADI will work on the documentation to go with it)
  • It may make sense to have a few different templates and have the docs suggest one based on the type of dataset.
  • Create list of polar URLs already providing schema.org so we can have a look and see how they fit with the guidance we are zeroing in on.


Breakout Working Group 3: Policy. Hosted by SCADM, SOOS and the Arctic Data Committee (Stein Tronstad, lead)

  1. Content analysis can be used as a tool for comparing data policy documents by extracting text elements, describing key reationships and creating links between different policies. Peter Pulsifer will discuss the possibility of using this method using the IPY data policy as an example.
  2. Editorial session on the “Polar Data Policy Recommendations” document, focussed on:
    • Summarise what has emerged through discussions and writing so far
    • Identify key issues that need deeper investigation before the policy recommendations can be finalised
    • Plan continued work on those issues towards the next workshop

The outcomes of the previous polar data policy sessions can be found here (June 30) and here (September 2).

The session will be 13:45-15:50. It will be possible to join the joint Working Group 1 and 2 afterwards.



Kind regards,
Peter Pulsifer, Arctic Data Committee / AOS Working Group 4
Pip Bricher, SOOS / POLDER
Taco de Bruin, SCADM / IODE
Ruth Duerr, ADC-IARPC-SCADM Vocabularies and Semantics Working Group
Öystein Godöy, Global Cryosphere Watch, ADC-IARPC-SCADM Vocabularies and Semantics Working Group
Stein Tronstad, SCADM/ADC
Jan Rene Larsen, SAON
Rorie Edmunds, World Data System
Marten Tacoma, ADC/SCADM

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