OIH and DeCODER meeting notes with DOOS

Just a few notes from the google doc https://docs.google.com/document/d/1N0Xtyj-cL-2r7oHWocoy7QrMY5S1GDj8jdZikeiLZSA/edit

Generic term notes
- NERC depth (1 term .. depth vs water surface in meters) Positive down
- Datum (depth below mean low water line for coastal)
- Methods (pressure, etc)
- Mbsf for cores (not important here)
https://schema.org/Observation
- Referenced by https://schema.org/marginOfError
They wish to both Dataset and Project search as well
- With terms like (deep ocean, zones, etc) being keyword examples for projects
Need some WKT examples for points and lines with Z axis
https://www.fao.org/cwp-on-fishery-statistics/handbook/general-concepts/geographic-coordinates/fr/
OBO Envo ontology for depth (CMEX) (Sweet, Global change master index)
Community would like to Search is by
- Depth (numeric)
- Habitat type (some of these sound like they are in envo)
- Gazetteer of undersea names (IHO) (reference?)
- Benthic vs water column
- Leverage "about" in schema.org (seafloor vs water column)
EOV's are in envo (some currently) (future cross link with NERC planned)
In Schema.org there is GeoCoodinates -> elevation (here elevation would be negative)

Depth in spatial chunk (in the)

    "geosparql:hasGeometry": {
        "@type": "http://www.opengis.net/ont/sf#Point",
        "geosparql:asWKT": {
            "@type": "http://www.opengis.net/ont/geosparql#wktLiteral",
            "@value": "POINT(-76 -18 Z)"
        },
        "geosparql:crs": {
            "@id": "http://www.opengis.net/def/crs/OGC/1.3/CRS84"
        }

Depth as a measured variable in the Dataset

  "variableMeasured": [
        {
            "@type": "PropertyValue",
            "name": "Sea State",
            "description": "Sea State is the characterization of wave and swell, typically in terms of height, wavelength, period, and directional wave energy flux ",
            "propertyID": [
                "http://purl.obolibrary.org/obo/ENVO_01001374",
                "https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/all/11aca777-8a01-42ce-b076-b3059c3d8cae?gtm_keyword=SEA%20STATE&gtm_scheme=Earth%20Science"
            ]
        },
        {
            "@type": "PropertyValue",
            "name": "Ocean Surface Stress",
            "description": "The 2-dimensional horizontal vector Ocean Surface Stress is the rate per unit area at which momentum is transferred from the atmosphere to the ocean.",
            "propertyID": "http://purl.obolibrary.org/obo/ENVO_01001844",
            "value": 0.2,
            "unitCode": "http://qudt.org/vocab/unit/N-PER-M2"
        }
    ],

Karen Stocks Karen Stocks says:FWIW this was Nico's idea:

 {
              "@type": "PropertyValue",
              "name": "depth",
              "alternateName": {
                "@type": "DefinedTerm",
                "name": "Depth (spatial coordinate) relative to water surface in the water body",
                "description": "The distance of a sensor or sampling point below the sea surface",
                "termCode": "ADEPZZ01",
                "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P01/current/",
                "url": "http://vocab.nerc.ac.uk/collection/P01/current/ADEPZZ01/"
              },
              "valueReference": {
                "@type": "QuantitativeValue ",
                "minValue": 0,
                "maxValue": 300
              }
            }

iodepo / odis-arch

OIH and DeCODER meeting notes with DOOS #245