DTN Zulu (Icing) AIRMET API

openapi: 3.2.0
info:
  title: Dtn Zulu (Icing) AIRMET API
  version: '1.0'
  description: 'Operations tagged Zulu (Icing) AIRMET across 2 of this provider''s published API definitions: dtn-sigmets-airmets-openapi.json, dtn-websocket-api-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://aviation.api.dtn.com
security:
- clientCredentials: []
tags:
- name: Zulu (Icing) AIRMET
  description: On demand Zulu (Icing) AIRMETs via API
paths:
  /v1/zuluAirmets/:
    get:
      tags:
      - Zulu (Icing) AIRMET
      summary: Get active Zulu (Icing) AIRMETs
      description: Get all available Zulu (Icing) AIRMETs, potentially filtered by various query parameters.  All specified filter parameters must be satisfied for an object to be returned in the response.
      responses:
        '200':
          $ref: '#/components/responses/ZuluAirmetSuccess'
        '400':
          $ref: '#/components/responses/ZuluAirmetBadRequest'
        '401':
          $ref: '#/components/responses/ErrorUnauthorized'
      parameters:
      - $ref: '#/components/parameters/QueryOffset'
      - $ref: '#/components/parameters/QueryLimit'
      - $ref: '#/components/parameters/QueryAirmetUnitSystem'
      - $ref: '#/components/parameters/QueryBbox'
      - $ref: '#/components/parameters/QueryPolygon'
      - $ref: '#/components/parameters/QueryCircle'
      - $ref: '#/components/parameters/QueryCorridor'
      - $ref: '#/components/parameters/QueryGeometry'
      - $ref: '#/components/parameters/QueryIntersection'
      - $ref: '#/components/parameters/QuerySrid'
      - $ref: '#/components/parameters/QueryDistanceUnits'
      - $ref: '#/components/parameters/QueryIsValidAt'
      - $ref: '#/components/parameters/QueryFromDateTime'
      - $ref: '#/components/parameters/QueryUntilDateTime'
      - $ref: '#/components/parameters/QueryInsertedAfter'
      - $ref: '#/components/parameters/QueryInsertedThrough'
      - $ref: '#/components/parameters/QuerySeverities'
      security:
      - clientCredentials: []
    servers:
    - url: https://aviation.api.dtn.com
components:
  schemas:
    Meta:
      title: Meta
      description: Meta data attached to every response
      required:
      - name
      - request_id
      - start_timestamp
      - end_timestamp
      - execution_time
      type: object
      properties:
        name:
          type: string
        request_id:
          type: string
        start_timestamp:
          type: integer
        end_timestamp:
          type: integer
        execution_time:
          type: integer
    GeoJsonObject:
      description: 'GeoJSon object The coordinate reference system for all GeoJSON coordinates is a geographic coordinate reference system, using the World Geodetic System 1984 (WGS 84) datum, with longitude and latitude units of decimal degrees. This is equivalent to the coordinate reference system identified by the Open Geospatial Consortium (OGC) URN An OPTIONAL third-position element SHALL be the height in meters above or below the WGS 84 reference ellipsoid. In the absence of elevation values, applications sensitive to height or depth SHOULD interpret positions as being at local ground or sea level.

        '
      externalDocs:
        url: https://tools.ietf.org/html/rfc7946#section-3
      type: object
      properties:
        type:
          type: string
          enum:
          - Feature
          - FeatureCollection
          - Point
          - MultiPoint
          - LineString
          - MultiLineString
          - Polygon
          - MultiPolygon
          - GeometryCollection
        bbox:
          description: 'A GeoJSON object MAY have a member named "bbox" to include information on the coordinate range for its Geometries, Features, or FeatureCollections. The value of the bbox member MUST be an array of length 2*n where n is the number of dimensions represented in the contained geometries, with all axes of the most southwesterly point followed by all axes of the more northeasterly point. The axes order of a bbox follows the axes order of geometries.

            '
          type: array
          items:
            type: number
      required:
      - type
      discriminator:
        propertyName: type
    ZuluAirmetFeature:
      description: GeoJSon 'Feature' object
      externalDocs:
        url: https://tools.ietf.org/html/rfc7946#section-3.2
      allOf:
      - $ref: '#/components/schemas/GeoJsonObject'
      - type: object
        required:
        - geometry
        - properties
        properties:
          geometry:
            allOf:
            - {}
            - $ref: '#/components/schemas/Geometry'
          properties:
            $ref: '#/components/schemas/ZuluAirmetItem'
          id:
            oneOf:
            - type: number
            - type: string
    ZuluAirmetItem:
      type: object
      required:
      - validDateTime
      - expirationDateTime
      - insertedDateTime
      - severity
      - messageTxt
      - topLevel
      - bottomLevel
      properties:
        validDateTime:
          type: string
          format: date-time
        expirationDateTime:
          type: string
          format: date-time
        insertedDateTime:
          type: string
          format: date-time
        severity:
          type: string
        messageTxt:
          type: string
        topLevel:
          type:
          - number
          - 'null'
        bottomLevel:
          type:
          - number
          - 'null'
    Geometry:
      type: object
      description: GeoJSon geometry
      discriminator:
        propertyName: type
      required:
      - type
      externalDocs:
        url: http://geojson.org/geojson-spec.html#geometry-objects
      properties:
        type:
          type: string
          enum:
          - Point
          - LineString
          - Polygon
          - MultiPoint
          - MultiLineString
          - MultiPolygon
          description: the geometry type
    Error:
      title: Error
      description: Error
      required:
      - type
      - title
      - status
      - detail
      - meta
      type: object
      properties:
        url:
          type: string
        type:
          enum:
          - internal-server-error
          - unauthorized
          - bad-request
          - service-unavailable
          - forbidden
          - not-found
          type: string
        title:
          type: string
        status:
          type: number
        detail:
          type: string
        instance:
          type: string
        errors:
          type: array
          items:
            type: object
        meta:
          $ref: '#/components/schemas/Meta'
    ZuluAirmetFeatureCollection:
      description: GeoJSon 'FeatureCollection' object
      externalDocs:
        url: https://tools.ietf.org/html/rfc7946#section-3.3
      allOf:
      - $ref: '#/components/schemas/GeoJsonObject'
      - type: object
        required:
        - features
        properties:
          features:
            type: array
            items:
              $ref: '#/components/schemas/ZuluAirmetFeature'
    ZuluAirmetItem_2:
      type: object
      required:
      - validDateTime
      - expirationDateTime
      - severity
      - messageTxt
      - topLevel
      - bottomLevel
      properties:
        validDateTime:
          type: string
          format: date-time
        expirationDateTime:
          type: string
          format: date-time
        severity:
          type: string
        messageTxt:
          type: string
        topLevel:
          type:
          - number
          - 'null'
        bottomLevel:
          type:
          - number
          - 'null'
  responses:
    ErrorUnauthorized:
      description: Unauthorized
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            type: unauthorized
            title: Error while authenticating the user
            status: 401
            detail: Missing Authorization token.
            instance: urn:dtn:aviation-api:/v1/notams/KIND:requestId:19e1b83a-cb2e-4460-b687-ce9d0c50b4b6
            meta:
              name: v1.notams.KIND
              uuid: d64fc634-9bee-430d-8ab1-200337e6e9b2
              request_id: 19e1b83a-cb2e-4460-b687-ce9d0c50b4b6
              start_timestamp: 1714019217213
              end_timestamp: 1714019217246
              execution_time: 33
    ZuluAirmetSuccess:
      description: Successful
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ZuluAirmetFeatureCollection'
          examples:
            Success:
              $ref: '#/components/examples/ZuluAirmetSuccessResponse'
    ZuluAirmetBadRequest:
      description: Bad Request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          examples:
            BadRequest:
              $ref: '#/components/examples/ZuluAirmetBadRequestResponse'
  examples:
    ZuluAirmetSuccessResponse:
      value:
        url: https://aviation.api.dtn.com/v1/zuluAirmets/?bbox=-85,32,-80,37&isValidAt=2024-07-26%2018:00:00Z
        type: FeatureCollection
        features:
        - type: Feature
          geometry:
            type: Polygon
            coordinates:
            - - - -88.6558
                - 36.5787
              - - -82.8811
                - 36.1693
              - - -85.15
                - 34.9667
              - - -84.7751
                - 33.2379
              - - -90.6037
                - 30.8646
              - - -93.478
                - 29.8844
              - - -95.3171
                - 31.2269
              - - -94.3988
                - 33.8002
              - - -91.939
                - 36.1144
              - - -88.6558
                - 36.5787
          properties:
            severity: MODERATE
            iceType: null
            messageTxt: AIRMET ICE...OK TX AR TN LA MS AL  \nFROM 50NE DYR TO 40WSW HMV TO GQO TO 20NE LGC TO 20SSW MCB TO  \n20SW LCH TO 30W LFK TO 30NW TXK TO 50W ARG TO 50NE DYR  \nMOD ICE BTN 140 AND FL280. CONDS CONTG BYD 21Z THRU 03Z.  \n.  \n
            validDateTime: '2024-07-26T14:45:00.000Z'
            expirationDateTime: '2024-07-26T21:00:00.000Z'
            insertedDateTime: '2024-07-26T14:39:48.276Z'
            topLevel: 28000
            bottomLevel: 14000
        - type: Feature
          geometry:
            type: Polygon
            coordinates:
            - - - -82.8811
                - 36.1693
              - - -81.5357
                - 35.9541
              - - -81.5118
                - 34.555
              - - -82.7241
                - 34.5012
              - - -83.3
                - 33.8667
              - - -84.7751
                - 33.2379
              - - -85.15
                - 34.9667
              - - -82.8811
                - 36.1693
          properties:
            severity: MODERATE
            iceType: null
            messageTxt: AIRMET ICE...NC SC GA  \nFROM 40WSW HMV TO 40SE HMV TO 30SE SPA TO 30ESE ODF TO 50S ODF TO  \n20NE LGC TO GQO TO 40WSW HMV  \nMOD ICE BTN 140 AND FL280. CONDS DVLPG AFT 15Z. CONDS CONTG BYD  \n21Z ENDG BY 00Z.  \n.  \n
            validDateTime: '2024-07-26T14:45:00.000Z'
            expirationDateTime: '2024-07-26T21:00:00.000Z'
            insertedDateTime: '2024-07-26T14:39:48.442Z'
            topLevel: 28000
            bottomLevel: 14000
        - type: Feature
          geometry:
            type: Polygon
            coordinates:
            - - - -72.419
                - 37.1841
              - - -72.5889
                - 34.9899
              - - -76.6865
                - 31.7956
              - - -80.0403
                - 33.2319
              - - -80.8211
                - 33.6965
              - - -81.3695
                - 34.4367
              - - -80.6821
                - 35.8336
              - - -78.3345
                - 36.2236
              - - -75.8673
                - 36.4892
              - - -72.419
                - 37.1841
          properties:
            severity: MODERATE
            iceType: null
            messageTxt: AIRMET ICE...NC SC AND CSTL WTRS  \nFROM 160SE SIE TO 190ESE ECG TO 160SSE ILM TO 20N CHS TO 20SE CAE  \nTO 40SE SPA TO 40WSW GSO TO 30NE RDU TO 20NE ECG TO 160SE SIE  \nMOD ICE BTN 140 AND FL280. CONDS CONTG BYD 21Z THRU 03Z.  \n.  \nFRZLVL...RANGING FROM 145-160 ACRS AREA  \n....  \n  \n\n\n\n\n\n\n
            validDateTime: '2024-07-26T14:45:00.000Z'
            expirationDateTime: '2024-07-26T21:00:00.000Z'
            insertedDateTime: '2024-07-26T14:39:48.628Z'
            topLevel: 28000
            bottomLevel: 14000
        meta:
          name: v1.zuluAirmets.?bbox=-85,32,-80,37&isValidAt=2024-07-26%2018:00:00Z
          uuid: be04973d-5143-4388-8a17-3910f4aef49e
          request_id: f7980cf0-e3b5-44c5-81de-25c7e90b4c9f
          start_timestamp: 1722010050894
          end_timestamp: 1722010051258
          execution_time: 364
    ZuluAirmetBadRequestResponse:
      value:
        url: https://aviation.api.dtn.com/v1/zuluAirmets/?severities=MOODERATE,SEVERE,EXTREME&polygon=-90,30,-80,30,-80,40,-90,40
        type: bad-request
        title: Invalid Request
        status: 400
        detail: Validation failed.
        instance: urn:dtn:aviation-api:/v1/zuluAirmets/:requestId:a9564162-8120-4647-8d4a-69c9cb197b73
        errors:
        - message: Parameter value includes unpermitted characters or is otherwise not allowed
          parameter: severities
          value: MOODERATE,SEVERE,EXTREME
        meta:
          name: v1.zuluAirmets.?severities=MOODERATE,SEVERE,EXTREME&polygon=-90,30,-80,30,-80,40,-90,40
          uuid: 26468c4c-2a0f-4279-9539-4699aa47b194
          request_id: a9564162-8120-4647-8d4a-69c9cb197b73
          start_timestamp: 1722010468309
          end_timestamp: 1722010468320
          execution_time: 11
    ZuluAirmetSuccessResponse_2:
      value:
        url: https://aviation.api.dtn.com/v1/zuluAirmets/?bbox=-85,32,-80,37&isValidAt=2024-07-26%2018:00:00Z
        type: FeatureCollection
        features:
        - type: Feature
          geometry:
            type: Polygon
            coordinates:
            - - - -88.6558
                - 36.5787
              - - -82.8811
                - 36.1693
              - - -85.15
                - 34.9667
              - - -84.7751
                - 33.2379
              - - -90.6037
                - 30.8646
              - - -93.478
                - 29.8844
              - - -95.3171
                - 31.2269
              - - -94.3988
                - 33.8002
              - - -91.939
                - 36.1144
              - - -88.6558
                - 36.5787
          properties:
            severity: MODERATE
            iceType: null
            messageTxt: AIRMET ICE...OK TX AR TN LA MS AL  \nFROM 50NE DYR TO 40WSW HMV TO GQO TO 20NE LGC TO 20SSW MCB TO  \n20SW LCH TO 30W LFK TO 30NW TXK TO 50W ARG TO 50NE DYR  \nMOD ICE BTN 140 AND FL280. CONDS CONTG BYD 21Z THRU 03Z.  \n.  \n
            validDateTime: '2024-07-26T14:45:00.000Z'
            expirationDateTime: '2024-07-26T21:00:00.000Z'
            topLevel: 28000
            bottomLevel: 14000
        - type: Feature
          geometry:
            type: Polygon
            coordinates:
            - - - -82.8811
                - 36.1693
              - - -81.5357
                - 35.9541
              - - -81.5118
                - 34.555
              - - -82.7241
                - 34.5012
              - - -83.3
                - 33.8667
              - - -84.7751
                - 33.2379
              - - -85.15
                - 34.9667
              - - -82.8811
                - 36.1693
          properties:
            severity: MODERATE
            iceType: null
            messageTxt: AIRMET ICE...NC SC GA  \nFROM 40WSW HMV TO 40SE HMV TO 30SE SPA TO 30ESE ODF TO 50S ODF TO  \n20NE LGC TO GQO TO 40WSW HMV  \nMOD ICE BTN 140 AND FL280. CONDS DVLPG AFT 15Z. CONDS CONTG BYD  \n21Z ENDG BY 00Z.  \n.  \n
            validDateTime: '2024-07-26T14:45:00.000Z'
            expirationDateTime: '2024-07-26T21:00:00.000Z'
            topLevel: 28000
            bottomLevel: 14000
        - type: Feature
          geometry:
            type: Polygon
            coordinates:
            - - - -72.419
                - 37.1841
              - - -72.5889
                - 34.9899
              - - -76.6865
                - 31.7956
              - - -80.0403
                - 33.2319
              - - -80.8211
                - 33.6965
              - - -81.3695
                - 34.4367
              - - -80.6821
                - 35.8336
              - - -78.3345
                - 36.2236
              - - -75.8673
                - 36.4892
              - - -72.419
                - 37.1841
          properties:
            severity: MODERATE
            iceType: null
            messageTxt: AIRMET ICE...NC SC AND CSTL WTRS  \nFROM 160SE SIE TO 190ESE ECG TO 160SSE ILM TO 20N CHS TO 20SE CAE  \nTO 40SE SPA TO 40WSW GSO TO 30NE RDU TO 20NE ECG TO 160SE SIE  \nMOD ICE BTN 140 AND FL280. CONDS CONTG BYD 21Z THRU 03Z.  \n.  \nFRZLVL...RANGING FROM 145-160 ACRS AREA  \n....  \n  \n\n\n\n\n\n\n
            validDateTime: '2024-07-26T14:45:00.000Z'
            expirationDateTime: '2024-07-26T21:00:00.000Z'
            topLevel: 28000
            bottomLevel: 14000
        meta:
          name: v1.zuluAirmets.?bbox=-85,32,-80,37&isValidAt=2024-07-26%2018:00:00Z
          uuid: be04973d-5143-4388-8a17-3910f4aef49e
          request_id: f7980cf0-e3b5-44c5-81de-25c7e90b4c9f
          start_timestamp: 1722010050894
          end_timestamp: 1722010051258
          execution_time: 364
  parameters:
    QueryAirmetUnitSystem:
      name: unitSystem
      description: 'Identifier for units system used for numerical output values in AIRMET data.  Must be either `default` or `metric`.  Default is `default`.  Field units depending on unit system:<br>                * `topLevel`: default=`ft`, metric=`m`<br>                * `bottomLevel`: default=`ft`, metric=`m`'
      in: query
      required: false
      explode: false
      schema:
        type: string
        enum:
        - default
        - metric
        default: default
    QueryInsertedThrough:
      name: insertedThrough
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss.fff`.  Limits to objects whose `insertedDateTime` is not later than that specified value.  This allows to acquire only data that became available through this time.  Requires use of fractional seconds for full precision.  Allowed values relative to the current time vary depending on the data type.  A data insertion time value being accepted through this parameter does not mean there will be applicable data to return in response.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}(\.\d+)?
    QueryInsertedAfter:
      name: insertedAfter
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss.fff`.  Limits to objects whose `insertedDateTime` is later than that specified value.  This allows to acquire only data that became available after this time.  Requires use of fractional seconds for full precision.  Allowed values relative to the current time vary depending on the data type.  A data insertion time value being accepted through this parameter does not mean there will be applicable data to return in response.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}(\.\d+)?
    QueryLimit:
      name: limit
      description: Provide no more than this many items in the response set.
      in: query
      required: false
      schema:
        type: integer
        default: 1000
        minimum: 1
        maximum: 10000
    QueryIsValidAt:
      name: isValidAt
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss`.  Limits to objects whose `validDateTime` is not earlier than the specified value and whose `expirationDateTime` is later than that specified value.  Allowed values relative to the current time vary depending on the data type.  A valid time value being accepted through this parameter does not mean there will be applicable data to return in response.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}
    QueryCircle:
      name: circle
      description: Circle coordinates and radius distance in the format `<X>,<Y>,<RADIUS>`.  The `X,Y` coordinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  The `<RADIUS>` defines the distance (in default or `distanceUnits`-specified units) from the defined point.  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.  Requests with circle definition of area that crosses antimeridian will fail.  The larger the defined area, the more its shape on projected map will differ from true circle on spherical coordinates.  Maximum allowed <RADIUS> is 400nm (and equal lengths for different `distanceUnits`).
      in: query
      required: false
      schema:
        type: string
    QueryBbox:
      name: bbox
      description: Bounding box coordinates in the format `<min_X>,<min_Y>,<max_X>,<max_Y>`.  The `X,Y` coordinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.  Requests with bbox definition of area that crosses antimeridian will fail.
      in: query
      required: false
      schema:
        type: string
    QueryIntersection:
      name: intersection
      description: 'Boolean indicator for constraining object geometries to spatial filter coverage.  If true, object shapes will be truncated at the bounds of the spatial filter.  NOTE: Over large areas and if intersecting the antimeridian the results will likely be inaccurate.'
      in: query
      required: false
      schema:
        type: boolean
        default: false
    QuerySeverities:
      name: severities
      description: Comma-separated list of severity values.  Must include only allowed values, which include empty string.  Limits to objects whose `severity` value matches one of specified parameter values.
      in: query
      required: false
      explode: false
      schema:
        type: array
        items:
          type: string
          enum:
          - LIGHT
          - MODERATE
          - SEVERE
          - EXTREME
          - ''
    QueryUntilDateTime:
      name: untilDateTime
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss`.  Limits to objects whose `validDateTime` is earlier than the specified value, i.e., only objects that began before this time.  Allowed values relative to the current time vary depending on the data type.  A time value being accepted through this parameter does not mean there will be applicable data to return in response.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}
    QueryPolygon:
      name: polygon
      description: Polygon coordinates in the format `<X_0>,<Y_0>,<X_1>,<Y_1>...,<X_n>,<Y_n>`.  The `X,Y` coordinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  Must provide between 3 and 40 coordinates.  If the last `X,Y` does not match the first `X,Y`, the first `X,Y` is copied to the end to close the polygon.  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.  Requests with polygon definition of area that crosses antimeridian will fail or give unexpected results.
      in: query
      required: false
      schema:
        type: string
    QueryOffset:
      name: offset
      description: Skip over this many into the response set; used for paginated results.
      in: query
      required: false
      schema:
        type: integer
        default: 0
    QueryFromDateTime:
      name: fromDateTime
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss`.  Limits to objects whose `expirationDateTime` is later than that specified value, i.e., only objects not ended by this time.  Allowed values relative to the current time vary depending on the data type.  A time value being accepted through this parameter does not mean there will be applicable data to return in response.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}
    QueryGeometry:
      name: geometry
      description: Boolean indicator for inclusion of Geometry in response.  If false, geometry will be returned empty.
      in: query
      required: false
      schema:
        type: boolean
        default: true
    QuerySrid:
      name: srid
      description: SRID Identifier for coordinate system for spatial filter coordinates.  Default is 4326 (i.e., ordinary longitude & latitude in degrees).
      in: query
      required: false
      explode: false
      schema:
        type: integer
        enum:
        - 4326
        - 3857
        default: 4326
    QueryCorridor:
      name: corridor
      description: Line coordinates and distance from the line in the format `<X_0>,<Y_0>,<X_1>,<Y_1>...,<X_n>,<Y_n>,<HALFWIDTH>`.  The `X,Y` coordinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  Must provide between 2 and 40 coordinates for the line.  The `<HALFWIDTH>` defines the distance (in default or `distanceUnits`-specified units) from the line defined by the coordinates out to which to create encompassing shape.  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.  Requests with corridor definition of area that crosses antimeridian will fail or give unexpected results.  The larger the defined area, the more its shape on projected map will differ from true corridor on spherical coordinates.  Maximum allowed <HALFWIDTH> is 200nm (and equal lengths for different `distanceUnits`).
      in: query
      required: false
      schema:
        type: string
    QueryDistanceUnits:
      name: distanceUnits
      description: Units identifier for distances in definition for circle or corridor spatial filter.  Default is `nm` (nautical miles).
      in: query
      required: false
      schema:
        type: string
        enum:
        - nm
        - km
        - m
        - sm
        default: nm
    QuerySigmetUnitSystem:
      name: unitSystem
      description: "Identifer for units system used for numerical output values.  Must be either `default` or `metric`.  Default is `default`.\n                * `topLevel`: default=`ft`, metric=`m`\n                * `bottomLevel`: default=`ft`, metric=`m`"
      in: query
      required: false
      explode: false
      schema:
        type: string
        enum:
        - default
        - metric
        default: default
    QueryLimit_2:
      name: limit
      description: Provide no more than this many items in the response set.  Default = 1000
      in: query
      required: false
      schema:
        type: integer
        default: 1000
        minimum: 1
        maximum: 10000
    QueryIsValidAt_2:
      name: isValidAt
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss`.  Limits to objects whose validDateTime is not earlier than the specified value and whose expirationDateTime is later than that specified value.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}
    QueryBbox_2:
      name: bbox
      description: Bounding box coordinates in the format `<min_X>,<min_Y>,<max_X>,<max_Y>`.  The `X,Y` corridinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.
      in: query
      required: false
      schema:
        type: string
    QueryCircle_2:
      name: circle
      description: Circle coordinates and radius distance in the format `<X>,<Y>,<RADIUS>`.  The `X,Y` corridinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  The `<RADIUS>` defines the distance (in default or `distanceUnits`-specified units) from the defined point.  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.
      in: query
      required: false
      schema:
        type: string
    QueryUntilDateTime_2:
      name: untilDateTime
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss`.  Limits to objects whose validDateTime is earlier than the specified value, i.e., only objects that began before this time.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}
    QueryPolygon_2:
      name: polygon
      description: Polygon coordinates in the format `<X_0>,<Y_0>,<X_1>,<Y_1>...,<X_n>,<Y_n>`.  The `X,Y` corridinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  If the last `X,Y` does not match the first `X,Y`, the first `X,Y` is copied to the end to close the polygon.  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.
      in: query
      required: false
      schema:
        type: string
    QueryOffset_2:
      name: offset
      description: Skip over this many into the response set; used for paginated results.  Default = 0
      in: query
      required: false
      schema:
        type: integer
        default: 0
    QueryFromDateTime_2:
      name: fromDateTime
      description: UTC timestamp in format `YYYY-MM-DD hh:mm:ss`.  Limits to objects whose expirationDateTime is later than that specified value, i.e., only objects not ended by this time.
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}
    QuerySrid_2:
      name: srid
      description: SRID identifer for coordinate system for spatial filter coordinates.  Default is 4326 (i.e., ordinary longitude & latitude in degrees).
      in: query
      required: false
      explode: false
      schema:
        type: integer
        enum:
        - 4326
        - 3857
        default: 4326
    QueryCorridor_2:
      name: corridor
      description: Line coordinates and distance from the line in the format `<X_0>,<Y_0>,<X_1>,<Y_1>...,<X_n>,<Y_n>,<HALFWIDTH>`.  The `X,Y` corridinates must be consistent with the `srid` (`4326` for longitude/latitude by default).  The `<HALFWIDTH>` defines the distance (in default or `distanceUnits`-specified units) from the line defined by the corridates out to which to create encompassing shape.  Limits to objects within or intersecting the area so defined.  No more than one of `bbox`, `polygon`, `circle`, and `corridor` may be used in one request.
      in: query
      required: false
      schema:
        type: string
  securitySchemes:
    clientCredentials:
      type: oauth2
      x-receive-token-in: request-body
      flows:
        clientCredentials:
          tokenUrl: https://api.auth.dtn.com/v1/tokens/authorize
      description: "# Using DAIS for M2M/API Auth\nYou have been given a Client ID and a Client Secret, which are used to request a DTN Access Token. DTN Access Tokens are required when making calls to each and every DTN API endpoint. The following information provides additional details on these tokens and how they are generated.\n## What is an Access Token and how is it different from an API Key?\nAn API Key is a random string of characters that an API uses to authorize whether or not a calling client has approved access to an endpoint. These keys are a non-standard approach to API authorization and are generally issued on a per-API basis.\n\nAn Access Token is also a string of characters but is a base-64 encoded JavaScript Object Notation Web Token, or JWT. JWTs are a widely accepted standard that use OAuth 

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# Full source: https://raw.githubusercontent.com/api-evangelist/dtn/refs/heads/main/openapi/dtn-zulu-icing-airmet-api-openapi.yml