{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_7_0.xsd",
    "Version": "2.7.0",
    "Document": {
      "ResourceID": "spase://SMWG/Document/SPASE/DataModel/BaseModel",
      "NamingAuthority": "SMWG",
      "ResourceType": "Document",
      "ResourceHeader": {
        "ResourceName": "Space Physics Archive Search and Extract (SPASE) Base Information Model",
        "DOI": "https://doi.org/10.48322/E72C-5Y75",
        "ReleaseDate": "2021-10-14T00:00:00.000Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2010-03-19T00:00:00.000Z",
              "Note": "Release 2.0.1. Update enumerations, update definitions, change occurence of RenderingHints, and other refinements."
            },
            {
              "ReleaseDate": "2011-01-06T00:00:00.000Z",
              "Note": "Release 2.2.0. Update enumerations, change ObservatoryGroup to ObervatoryGroupID, add coordinate systems, and other refinements."
            },
            {
              "ReleaseDate": "2018-05-31T00:00:00.000Z",
              "Note": "Release 2.3.0. Addition of DOI and PublicationInfo, and Style to AccessURL."
            },
            {
              "ReleaseDate": "2019-11-14T00:00:00.000Z",
              "Note": "Release 2.3.1. Additions to multiple enumerations."
            },
            {
              "ReleaseDate": "2020-06-10T00:00:00.000Z",
              "Note": "Release 2.3.2. Additions to multiple enumerations."
            },
            {
              "ReleaseDate": "2021-06-10T00:00:00.000Z",
              "Note": "Release 2.4.0. Major addition is Software resource."
            },
            {
              "ReleaseDate": "2022-07-21T00:00:00.000Z",
              "Note": "Release 2.4.2. Add SpatialCoverage and add Title and LandingPageURL to PublicationInfo."
            },
            {
              "ReleaseDate": "2022-08-29T00:00:00.000Z",
              "Note": "Release 2.5.0. Add Collection resouorce to SPASE Base Model."
            },
            {
              "ReleaseDate": "2023-08-03T00:00:00.000Z",
              "Note": "Release 2.6.0. Merged the Simulation 1.0.0 SPASE Model Extensions with the SPASE 2.5.0 Base Model. Four simulation related SPASE resource types added: Model, ModelRun, DisplayOutput, and NumericalOutput. Updated the Description of Current under FieldQuantity and Added Current under ParticleQuantity. Added CurrentDensity under both FieldQuantity and ParticleQuantity. Added the Comet Enumeration List including three members. Added AccessInformtion to the Software SPASE resource type. Added AccessFilenameTemplate and AccessDirectoryTemplate to AccessInformation. Added AccessInformationOptional to the schema and under Model. Added Empirical under the ModelType enumeration list."
            },
            {
              "ReleaseDate": "2024-09-19T00:00:00.000Z",
              "Note": "Release 2.6.1. Updated SPASE Dictionary definitions for Acknowledgement, AssociationType, Author, Authors, DirectionAngle, Encoding, FlowSpeed, FlowVelocity, Format, MagneticCloud, PublicationDate, ReleaseDate, ResourceName, Style, and ThermalSpeed. Added SPASE Dictionary definitions for LocalGeographic, LocalGeomagnetic, and SensorCoordinates and added these terms to the CoordinateSystemName enumeration list. Added SPASE Dictionary definition for StonyhurstHeliographic and added this term to the CoordinateSystemName enumeration list per request of Masahito Nose-san. Added SPASE Dictionary definitions for AOGCM, GCM, and NonHydrostatic and added these terms to the ModelType enumeration list. Updated SPASE Dictionary definition for Electrohydrodynamics and revised the name of the term by deleting the last character, the terminal s, to maintain consistancy with other terms in ModelType enumeration list. Added SPASE Dictionary definition for InterplanetaryCoronalMassEjection and added this term to the PhenomenonType enumeration list. Corrected SPASE Ontology listing of the Cardinality for RepositoryID under AccessInformationOptional to replace the letter r with the number 1 (required). Updated the SPASE Ontology listing of the Cardinality for SpatialCoverage under DisplayData and Granule from + (1 or more) to * (0 or more). Updated the SPASE Ontology listing of the Cardinality for SpatialCoverage under Member and Parameter from 0 (optional) to * (0 or more). Updated the SPASE Ontology listing of the Cardinality for OperatingSpan under Observatory from + (1 or more) to * (0 or more). Updated the SPASE Ontology listing of the Cardinality for OperatingSpan under Instrument from 0 (optional) to * (0 or more). Updated the SPASE Ontology listing of the Cardinality for ModelType under Model from 1 (required) to + (1 or more). Added SPASE Dictionary definitions for SourceRegion and SourceRegionExtent and added these to text fields to the end of the Particle and the Wave containers each with * cardinality (0 or more). Added SPASE Dictionary definition for Lidar and added this term to the InstrumentType enumeration list.Added SPASE Dictionary definition for Muon annnd added it to the ParticleType enumeration list."
            },
            {
              "ReleaseDate": "2025-01-28T00:00:00.000Z",
              "Note": "Release 2.7.0. Added DataCite equivalent container named rightsList to the AccessInformation container. The rightsList Container must include at least one text field elements called rights. Both rightsList and rights definitions have been added to the SPASE dictionary. Added new items to the Qualifier enumeration list: Amplitude, Magnitude, MassMixingRatio, and MixingRatio definitions added to the SPASE Dictionary. Added NamingAuthority, a text field element, and ResourceType, an enumerated text field element, to all SPASE resource types (eighteen total). NamingAuthority and ResourceType have been inserted immediately following ResourceID and the both terms have been added to the dictionary. An enumeration list also called ResourceType has been added under list.tab. And, the ResourceType enumeration list items have been inserted into member.tab. Added the text field element re3data to the dictionary and to the Repository resource type container. Added the RORIdentifier text field under the Instrument, Observatory, Registry, and Repository resource type containers."
            },
            {
              "ReleaseDate": "2025-03-16T00:00:00.000Z",
              "Note": "Release 2.7.0. Schema revised to ensure backwards compatibility. To do so, both of the NamingAuthority and ResourceType text elements were made optional (0) instead of required (1). Also, the list of earlier version numbers of SPASE are now added to the SPASE 2.7.0 XSD file to permit validating any XML descriptions regardless of the actual SPASE version number listed in the descriptions. For instance, xmllint, which is a unix command, can be used to validate a SPASE version 2.0.0 (or equivalently any SPASE version earlier than 2.7.0) description with the SPASE 2.7.0 XSD file. Note that online SPASE Validator still requires checking by using the version listed in a SPASE XML description."
            },
            {
              "ReleaseDate": "2025-11-26T00:00:00.000Z",
              "Note": "Release 2.7.1. Modified existing Rights object: renaming FullName to RightsName, adding Note, enclosing these properties within a Rights container to be used within both the RightsList and new MetadataRightsList. Added new moons to Jupiter and Saturn. Adding tombstone capability via the new Status element and additional AssociationTypes. Modifying the PriorID definition to more closely align with its current use."
            }
          ]
        },
        "Description": "Research in Heliophysics requires information from multiple sources which includes data from and about spacecrafts, groundbased observatories, models, simulations and more. The results from research are also invaluable in building up a body of knowledge and need to be available. All the different sources and types of information are considered a \"Resource\" The Resources exist, are shared, exchanged and used in a framework called the \"data environment\" The SPASE (Space Physics Archive Search and Extract) group has defined a Data Model which is a set of terms and values along with the relationships between them that allow describing all the resources in a heliophysics data environment. It is the result of many years of effort by an international collaboration of heliophysicists and information scientists to unify and improve on existing Space and Solar Physics data models. The intent of this Data Model is to provide the means to describe resources, most importantly scientifically useful data products, in a uniform way so they may be easily registered, found, accessed, and used.\n\nThe Data Model provides enough detail to allow a scientist to understand the content of Data Products (e.g., a set of files for 3 second resolution Geotail magnetic field data for 1992 to 2005), together with essential retrieval and contact information. It also allows for the incremental annotation of resources with expert assessments and the free association of resources to create bundles or networks of resources. Resource descriptions can be stored with the data or at remote locations. Sites can harvest the resource descriptions to enable services like a search engine or portal (Virtual Observatory). A typical use would be to have a collection of descriptions stored in one or more related internet-based registries of products; that can be queried with specifically designed search engines and ultimately link users to the data they need. The Data Model also provides constructs for describing components of such a data delivery system. This includes repositories, registries and services.",
        "Acknowledgement": "SPASE Group",
        "PublicationInfo": {
          "Authors": "SPASE Group",
          "PublicationDate": "2021-06-10T00:00:00.000Z",
          "PublishedBy": "SPASE Group"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Lee.Frost.Bargatze",
            "Role": [
              "Publisher",
              "GeneralContact"
            ]
          },
          {
            "PersonID": "spase://SMWG/Person/Shing.F.Fung",
            "Role": "GeneralContact"
          }
        ]
      },
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/SPASE",
          "AccessURL": {
            "Name": "SPASE Base Model Description, released 2025-03-16",
            "URL": "https://spase-group.org/data/model/spase-latest.pdf"
          },
          "Format": "PDF"
        },
        {
          "RepositoryID": "spase://SMWG/Repository/SPASE",
          "AccessURL": {
            "Name": "SPASE Base Model XML Schema Definition, XSD, File 2025-03-16",
            "URL": "https://spase-group.org/data/schema/spase-latest.xsd"
          },
          "Format": "XML"
        }
      ],
      "Keyword": [
        "SPASE",
        "Base Model",
        "Specification"
      ],
      "DocumentType": "Specification",
      "MIMEType": "application/pdf"
    }
  }
}