Category:MARPA Working Group

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Revision as of 22:36, 31 March 2017 by Khider (Talk | contribs) (Physical Sample metadata - SESAR: Timeseries data standards table + polls)

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( Pages with a poll, Working Group )


Overview

In the Linked Earth context, a working group (WG) is a self-organized coalition of knowledgeable experts, whose activities are governed herewith. This page is dedicated to the discussion of data and metadata standards for MARPA (marine annually-resolved proxy archives, including corals, mollusks, and sclerosponges), and aims to formulate a set of recommendations for such a standard. Note that chronological aspects should be discussed within the Chronologies WG.

Members of 'MARPA Working Group'

Specific tasks

We recommend that discussions focus on the following techniques, and explore potential commonalities.

For each chronology type, we recommend:

  • structuring discussions around what scientific questions one would want to ask of the data
  • listing essential, recommended, and optional information for:
    • the measurements themselves
    • any inference made from the measurements (e.g. calibration to temperature)
    • the underlying uncertainties, and what those numbers correspond to (e.g. 1-sigma or 2-sigma?)
  • provide an ideal data table for each type of observation, so the community knows what to report and how to report it.
  • provide separate recommendations for new and legacy datasets

Sub-groups

Corals

observations to describe:

  • stable isotopes
  • radiocarbon
  • trace metals

Sclerosponges

Mollusks

MARPA Standards : Template 1st draft

Below is a summarizing the metadata from the File:MARPA Template.xlsx. See the Discussion to comment on the template, fill out the table below, and vote on the polls.

See this page for the definition of essential, recommended, and desired metadata for the standards developed by LinkedEarth.

Physical Sample metadata - SESAR

Note: Although the new release of the LinkedEarth ontology will include a PhysicalSample category, there are no formal ways to describe the samples beyond their name, the possibility to enter an IGSN number or a lab ID number, a Collection Method, and where the sample is currently located.

Metadata for the PhysicalSample
Metadata Essential (E), Recommended (R), Desired (D) Comments
Sample Name
IGSN
Parent IGSN
Material According to SESAR metatada, categorizes the material that composes to the sample (e.g., water, granite, tissue). Proposed classification: Biology
Field Name In the LinkedEarth Ontology, this would be the SensorSpecies and SensorGenus
Classification e.g., Marobiology>coral
Sample description e.g., Scleractinian corals, core 236cm - 6 sections
Age (min/max) and associated units In the LinkedEarth framework, the minimum/maximum age is automatically calculated from the chronology information when a file is transformed into LiPD
Geological age
CollectionMethod
Size and associated units
Latitude
Longitude
Elevation start
Navigation Type
Location description e.g., lagoon
Locality e.g., Vanua Balavu
Locality description e.g, North of Susui village on east side of exposed reef
Country e.g., Fiji
State/Province
County
City/Township
Field program/Cruise e.g., Evohe 2004 Expedition
Collector/Chief Scientist e.g, Braddock K. Linsley
Collection date 4/11/04
Collection date precision day
Current archive Where the physical sample is currently curated. e.g., LDEO Core Repository
Current archive contact e.g., Braddock K. Linsley

Publication data

The proposed scheme is similar to the one proposed by LinkedEarth. See this page for more information

Timeseries Data

Matadata pertaining to time series data
Metadata Essential (E)/Recommended (R)/Desired (D) Comments
Raw data Raw measurements reported against depth in the archive
Monthly interpolated data measured variables (e.g., D18O, D13C, Sr/Ca) and/or inferred variables (e.g., Sea Surface Temperature) reported against the monthly age model
For MARPA archives, should the position where the measurements was taken on the archive (i.e. depth) be:
You are not entitled to vote.
You are not entitled to view results of this poll.
There were 5 votes since the poll was created on 22:34, 31 March 2017.
poll-id 4031EF5F1002309E2C8C0506C001E912

For MARPA archives, should the raw measurements (e.g., d18O, Sr/Ca,...) be:
You are not entitled to vote.
You are not entitled to view results of this poll.
There were 5 votes since the poll was created on 22:34, 31 March 2017.
poll-id 57FD6ED4F56F43510D303CB3ECE3D321

For MARPA archives, should the interpolated chronology be:
You are not entitled to vote.
You are not entitled to view results of this poll.
There were 5 votes since the poll was created on 22:34, 31 March 2017.
poll-id 97433E475D47EC838D4BDFDADE5A25B8

Polls

Results of the Twitter poll ran 3/16/17 to 3/23/17
For coral archives, should the x-ray pictures be included with the data?
You are not entitled to vote.
You are not entitled to view results of this poll.
There were 5 votes since the poll was created on 17:16, 14 March 2017.
poll-id F3A482FD0BFCD0804BD8B50913B5D24E

References

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