U.S. Geological Survey Channel Measurements API

openapi: 3.2.0
info:
  contact:
    name: US Geological Survey - Water Data for the Nation
    url: https://waterdata.usgs.gov
    x-ogc-serviceContact:
      addresses: []
      emails:
      - value: wdfn@usgs.gov
      hoursOfService: pointOfContact
      links:
      - href: https://waterdata.usgs.gov/questions-comments/?referrerUrl=https://api.waterdata.usgs.gov
        type: text/html
      name: WDFN Support
  description: 'The United States Geological Survey (USGS) collects water data at monitoring locations across the United States using both automated sensors and manual data collection. These APIs provide access to that data, alongside metadata about data collections and monitoring locations, in standardized machine-readable formats.

    '
  license:
    name: US Government work in the public domain
    url: https://creativecommons.org/publicdomain/zero/1.0/
  termsOfService: https://creativecommons.org/publicdomain/zero/1.0/
  title: USGS Water Data Channel Measurements API
  version: 0.71.7
  x-keywords:
  - geospatial
  - data
  - api
  - hydrology
  - USGS
servers:
- description: 'The United States Geological Survey (USGS) collects water data at monitoring locations across the United States using both automated sensors and manual data collection. These APIs provide access to that data, alongside metadata about data collections and monitoring locations, in standardized machine-readable formats.

    '
  url: https://api.waterdata.usgs.gov/ogcapi/v0
tags:
- description: 'Channel measurements taken as part of streamflow field measurements.

    '
  name: channel-measurements
paths:
  /collections/channel-measurements:
    get:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: describeChannel-measurementsCollection
      parameters:
      - $ref: '#/components/parameters/f'
      - $ref: '#/components/parameters/lang'
      responses:
        '200':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/Collection
        '400':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/InvalidParameter
        '403':
          $ref: '#/components/responses/Forbidden403'
        '404':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/NotFound
        '429':
          $ref: '#/components/responses/TooManyRequests429'
        '500':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/ServerError
      summary: Get Channel measurements metadata
      tags:
      - channel-measurements
  /collections/channel-measurements/items:
    get:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: getChannel-measurementsFeatures
      parameters:
      - description: The optional f parameter indicates the output format which the server shall provide as part of the response document.  The default format is GeoJSON.
        explode: false
        in: query
        name: f
        required: false
        schema:
          default: json
          enum:
          - json
          - html
          - jsonld
          - csv
          type: string
        style: form
      - $ref: '#/components/parameters/lang'
      - $ref: '#/components/parameters/bbox'
      - description: The optional limit parameter limits the number of items that are presented in the response document (maximum=50000, default=10).
        explode: false
        in: query
        name: limit
        required: false
        schema:
          default: 10
          maximum: 50000
          minimum: 1
          type: integer
        style: form
      - $ref: '#/components/parameters/crs'
      - $ref: '#/components/parameters/bbox-crs'
      - description: The properties that should be included. The parameter value is a comma-separated list of property names.
        explode: false
        in: query
        name: properties
        required: false
        schema:
          items:
            enum:
            - id
            - monitoring_location_id
            - field_visit_id
            - measurement_number
            - time
            - channel_name
            - channel_flow
            - channel_flow_unit
            - channel_width
            - channel_width_unit
            - channel_area
            - channel_area_unit
            - channel_velocity
            - channel_velocity_unit
            - channel_location_distance
            - channel_location_distance_unit
            - channel_stability
            - channel_material
            - channel_evenness
            - horizontal_velocity_description
            - vertical_velocity_description
            - longitudinal_velocity_description
            - measurement_type
            - last_modified
            - channel_measurement_type
            - channel_location_direction
            type: string
          type: array
        style: form
      - $ref: '#/components/parameters/skipGeometry'
      - $ref: '#/components/parameters/wda_sortby'
      - $ref: '#/components/parameters/offset'
      - $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/parameters/datetime
      - description: 'A universally unique identifier (UUID) representing a single version of a record. It is not stable over time. Every time the record is refreshed in our database (which may happen as part of normal operations and does not imply any change to the data itself) a new ID will be generated. To uniquely identify a single observation over time, compare the `time` and `time_series_id` fields; each time series will only have a single observation at a given `time`.

          '
        explode: false
        in: query
        name: id
        required: false
        schema:
          description: 'A universally unique identifier (UUID) representing a single version of a record. It is not stable over time. Every time the record is refreshed in our database (which may happen as part of normal operations and does not imply any change to the data itself) a new ID will be generated. To uniquely identify a single observation over time, compare the `time` and `time_series_id` fields; each time series will only have a single observation at a given `time`.

            '
          format: uuid
          title: Record identifier
          type: string
        style: form
      - description: "A unique identifier representing a single monitoring location. This corresponds to the `id` field in the `monitoring-locations` endpoint. Monitoring location IDs are created by combining the agency code of the agency responsible for the monitoring location (e.g. USGS) with the ID number of the monitoring location (e.g. 02238500), separated by a hyphen (e.g. USGS-02238500).\n Split parameters are enabled for this field, so you can supply multiple values separated by commas."
        explode: false
        in: query
        name: monitoring_location_id
        required: false
        schema:
          description: "A unique identifier representing a single monitoring location. This corresponds to the `id` field in the `monitoring-locations` endpoint. Monitoring location IDs are created by combining the agency code of the agency responsible for the monitoring location (e.g. USGS) with the ID number of the monitoring location (e.g. 02238500), separated by a hyphen (e.g. USGS-02238500).\n Split parameters are enabled for this field, so you can supply multiple values separated by commas."
          title: Monitoring location ID
          type: string
        style: form
      - description: "A universally unique identifier (UUID) for the field visit. Multiple measurements may be made during a single field visit.\n Split parameters are enabled for this field, so you can supply multiple values separated by commas."
        explode: false
        in: query
        name: field_visit_id
        required: false
        schema:
          description: "A universally unique identifier (UUID) for the field visit. Multiple measurements may be made during a single field visit.\n Split parameters are enabled for this field, so you can supply multiple values separated by commas."
          format: uuid
          title: Field visit ID
          type: string
        style: form
      - description: Measurement number.
        explode: false
        in: query
        name: measurement_number
        required: false
        schema:
          description: Measurement number.
          title: Measurement number
          type: string
        style: form
      - description: "The date an observation represents. You can query this field using date-times or intervals, adhering to RFC 3339, or using ISO 8601 duration objects. Intervals may be bounded or half-bounded (double-dots at start or end).\nExamples:\n\n  - A date-time: \"2018-02-12T23:20:50Z\"\n  - A bounded interval: \"2018-02-12T00:00:00Z/2018-03-18T12:31:12Z\"\n  - Half-bounded intervals: \"2018-02-12T00:00:00Z/..\" or \"../2018-03-18T12:31:12Z\"\n  - Duration objects: \"P1M\" for data from the past month or \"PT36H\" for the last 36 hours\n\nOnly features that have a `time` that intersects the value of datetime are selected. If a feature has multiple temporal properties, it is the decision of the server whether only a single temporal property is used to determine the extent or all relevant temporal properties.\n"
        explode: false
        in: query
        name: time
        required: false
        schema:
          description: "The date an observation represents. You can query this field using date-times or intervals, adhering to RFC 3339, or using ISO 8601 duration objects. Intervals may be bounded or half-bounded (double-dots at start or end).\nExamples:\n\n  - A date-time: \"2018-02-12T23:20:50Z\"\n  - A bounded interval: \"2018-02-12T00:00:00Z/2018-03-18T12:31:12Z\"\n  - Half-bounded intervals: \"2018-02-12T00:00:00Z/..\" or \"../2018-03-18T12:31:12Z\"\n  - Duration objects: \"P1M\" for data from the past month or \"PT36H\" for the last 36 hours\n\nOnly features that have a `time` that intersects the value of datetime are selected. If a feature has multiple temporal properties, it is the decision of the server whether only a single temporal property is used to determine the extent or all relevant temporal properties.\n"
          title: Time
          type: string
        style: form
      - description: The channel name.
        explode: false
        in: query
        name: channel_name
        required: false
        schema:
          description: The channel name.
          title: Channel name
          type: string
        style: form
      - description: Channel discharge.
        explode: false
        in: query
        name: channel_flow
        required: false
        schema:
          description: Channel discharge.
          title: Channel flow
          type: string
        style: form
      - description: The units for channel discharge.
        explode: false
        in: query
        name: channel_flow_unit
        required: false
        schema:
          description: The units for channel discharge.
          title: Channel flow unit
          type: string
        style: form
      - description: The channel width.
        explode: false
        in: query
        name: channel_width
        required: false
        schema:
          description: The channel width.
          title: Channel width
          type: string
        style: form
      - description: The units for channel width.
        explode: false
        in: query
        name: channel_width_unit
        required: false
        schema:
          description: The units for channel width.
          title: Channel width unit
          type: string
        style: form
      - description: The channel area.
        explode: false
        in: query
        name: channel_area
        required: false
        schema:
          description: The channel area.
          title: Channel area
          type: string
        style: form
      - description: The units for channel area.
        explode: false
        in: query
        name: channel_area_unit
        required: false
        schema:
          description: The units for channel area.
          title: Channel area unit
          type: string
        style: form
      - description: The mean channel velocity.
        explode: false
        in: query
        name: channel_velocity
        required: false
        schema:
          description: The mean channel velocity.
          title: Channel velocity
          type: string
        style: form
      - description: The units for channel velocity.
        explode: false
        in: query
        name: channel_velocity_unit
        required: false
        schema:
          description: The units for channel velocity.
          title: Channel velocity unit
          type: string
        style: form
      - description: The channel location distance.
        explode: false
        in: query
        name: channel_location_distance
        required: false
        schema:
          description: The channel location distance.
          title: Channel location distance
          type: string
        style: form
      - description: The units for channel location distance.
        explode: false
        in: query
        name: channel_location_distance_unit
        required: false
        schema:
          description: The units for channel location distance.
          title: Channel location distance unit
          type: string
        style: form
      - description: The stability of the channel material.
        explode: false
        in: query
        name: channel_stability
        required: false
        schema:
          description: The stability of the channel material.
          title: Channel stability
          type: string
        style: form
      - description: The channel material.
        explode: false
        in: query
        name: channel_material
        required: false
        schema:
          description: The channel material.
          title: Channel material
          type: string
        style: form
      - description: The channel evenness from bank to bank.
        explode: false
        in: query
        name: channel_evenness
        required: false
        schema:
          description: The channel evenness from bank to bank.
          title: Channel evenness
          type: string
        style: form
      - description: The horizontal velocity description.
        explode: false
        in: query
        name: horizontal_velocity_description
        required: false
        schema:
          description: The horizontal velocity description.
          title: Horizontal velocity description
          type: string
        style: form
      - description: The vertical velocity description.
        explode: false
        in: query
        name: vertical_velocity_description
        required: false
        schema:
          description: The vertical velocity description.
          title: Vertical velocity description
          type: string
        style: form
      - description: The longitudinal velocity description.
        explode: false
        in: query
        name: longitudinal_velocity_description
        required: false
        schema:
          description: The longitudinal velocity description.
          title: Longitudinal velocity description
          type: string
        style: form
      - description: The measurement type.
        explode: false
        in: query
        name: measurement_type
        required: false
        schema:
          description: The measurement type.
          title: Measurement type
          type: string
        style: form
      - description: "The last time a record was refreshed in our database. This may happen due to regular operational processes and does not necessarily indicate anything about the measurement has changed.\nYou can query this field using date-times or intervals, adhering to RFC 3339, or using ISO 8601 duration objects. Intervals may be bounded or half-bounded (double-dots at start or end).\nExamples:\n\n  - A date-time: \"2018-02-12T23:20:50Z\"\n  - A bounded interval: \"2018-02-12T00:00:00Z/2018-03-18T12:31:12Z\"\n  - Half-bounded intervals: \"2018-02-12T00:00:00Z/..\" or \"../2018-03-18T12:31:12Z\"\n  - Duration objects: \"P1M\" for data from the past month or \"PT36H\" for the last 36 hours\n\nOnly features that have a `last_modified` that intersects the value of datetime are selected.\n"
        explode: false
        in: query
        name: last_modified
        required: false
        schema:
          description: "The last time a record was refreshed in our database. This may happen due to regular operational processes and does not necessarily indicate anything about the measurement has changed.\nYou can query this field using date-times or intervals, adhering to RFC 3339, or using ISO 8601 duration objects. Intervals may be bounded or half-bounded (double-dots at start or end).\nExamples:\n\n  - A date-time: \"2018-02-12T23:20:50Z\"\n  - A bounded interval: \"2018-02-12T00:00:00Z/2018-03-18T12:31:12Z\"\n  - Half-bounded intervals: \"2018-02-12T00:00:00Z/..\" or \"../2018-03-18T12:31:12Z\"\n  - Duration objects: \"P1M\" for data from the past month or \"PT36H\" for the last 36 hours\n\nOnly features that have a `last_modified` that intersects the value of datetime are selected.\n"
          title: Last modified date
          type: string
        style: form
      - description: The channel measurement type.
        explode: false
        in: query
        name: channel_measurement_type
        required: false
        schema:
          description: The channel measurement type.
          title: Channel measurement type
          type: string
        style: form
      - description: Location of the measurement from the gage.
        explode: false
        in: query
        name: channel_location_direction
        required: false
        schema:
          description: Location of the measurement from the gage.
          title: Channel Location Direction
          type: string
        style: form
      - $ref: '#/components/parameters/filter'
      responses:
        '200':
          $ref: '#/components/responses/ChannelMeasurementsFeatures'
        '400':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/InvalidParameter
        '403':
          $ref: '#/components/responses/Forbidden403'
        '404':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/NotFound
        '429':
          $ref: '#/components/responses/TooManyRequests429'
        '500':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/ServerError
      security:
      - ApiKeyQuery: []
      - ApiKeyHeader: []
      summary: Get Channel measurements items
      tags:
      - channel-measurements
    options:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: optionsChannel-measurementsFeatures
      responses:
        '200':
          description: options response
      security:
      - ApiKeyQuery: []
      - ApiKeyHeader: []
      summary: Options for Channel measurements items
      tags:
      - channel-measurements
    post:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: getCQL2Channel-measurementsFeatures
      requestBody:
        content:
          application/json:
            schema:
              $ref: https://schemas.opengis.net/cql2/1.0/cql2.json
        description: Get items with CQL2
        required: true
      responses:
        '200':
          $ref: '#/components/responses/ChannelMeasurementsFeatures'
        '400':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/InvalidParameter
        '403':
          $ref: '#/components/responses/Forbidden403'
        '429':
          $ref: '#/components/responses/TooManyRequests429'
        '500':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/ServerError
      security:
      - ApiKeyQuery: []
      - ApiKeyHeader: []
      summary: Get Channel measurements items with CQL2
      tags:
      - channel-measurements
  /collections/channel-measurements/items/{featureId}:
    get:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: getChannel-measurementsFeature
      parameters:
      - $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/parameters/featureId
      - $ref: '#/components/parameters/crs'
      - $ref: '#/components/parameters/f'
      - $ref: '#/components/parameters/lang'
      responses:
        '200':
          $ref: '#/components/responses/ChannelMeasurementsFeature'
        '400':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/InvalidParameter
        '403':
          $ref: '#/components/responses/Forbidden403'
        '404':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/NotFound
        '429':
          $ref: '#/components/responses/TooManyRequests429'
        '500':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/ServerError
      security:
      - ApiKeyQuery: []
      - ApiKeyHeader: []
      summary: Get Channel measurements item by id
      tags:
      - channel-measurements
    options:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: optionsChannel-measurementsFeature
      parameters:
      - $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/parameters/featureId
      responses:
        '200':
          description: options response
      security:
      - ApiKeyQuery: []
      - ApiKeyHeader: []
      summary: Options for Channel measurements item by id
      tags:
      - channel-measurements
  /collections/channel-measurements/queryables:
    get:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: getChannel-measurementsQueryables
      parameters:
      - description: The properties that should be included. The parameter value is a comma-separated list of property names.
        explode: false
        in: query
        name: properties
        required: false
        schema:
          items:
            enum:
            - id
            - monitoring_location_id
            - field_visit_id
            - measurement_number
            - time
            - channel_name
            - channel_flow
            - channel_flow_unit
            - channel_width
            - channel_width_unit
            - channel_area
            - channel_area_unit
            - channel_velocity
            - channel_velocity_unit
            - channel_location_distance
            - channel_location_distance_unit
            - channel_stability
            - channel_material
            - channel_evenness
            - horizontal_velocity_description
            - vertical_velocity_description
            - longitudinal_velocity_description
            - measurement_type
            - last_modified
            - channel_measurement_type
            - channel_location_direction
            type: string
          type: array
        style: form
      - $ref: '#/components/parameters/f'
      - description: The profile to be applied to a given request
        explode: false
        in: query
        name: profile
        required: false
        schema:
          enum:
          - actual-domain
          - valid-domain
          type: string
        style: form
      - $ref: '#/components/parameters/lang'
      responses:
        '200':
          $ref: '#/components/responses/Queryables'
        '400':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/InvalidParameter
        '403':
          $ref: '#/components/responses/Forbidden403'
        '404':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/NotFound
        '429':
          $ref: '#/components/responses/TooManyRequests429'
        '500':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/ServerError
      security:
      - ApiKeyQuery: []
      - ApiKeyHeader: []
      summary: Get Channel measurements queryables
      tags:
      - channel-measurements
  /collections/channel-measurements/schema:
    get:
      description: 'Channel measurements taken as part of streamflow field measurements.

        '
      operationId: getChannel-measurementsSchema
      parameters:
      - $ref: '#/components/parameters/f'
      - $ref: '#/components/parameters/lang'
      responses:
        '200':
          $ref: '#/components/responses/Queryables'
        '400':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/InvalidParameter
        '403':
          $ref: '#/components/responses/Forbidden403'
        '404':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/NotFound
        '429':
          $ref: '#/components/responses/TooManyRequests429'
        '500':
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/responses/ServerError
      security:
      - ApiKeyQuery: []
      - ApiKeyHeader: []
      summary: Get Channel measurements schema
      tags:
      - channel-measurements
components:
  schemas:
    ChannelMeasurementsFeature:
      properties:
        geometry:
          $ref: https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/ogcapi-features-1.yaml#/components/schemas/geometryGeoJSON
        id:
          type: string
        properties:
          properties:
            channel_area:
              description: The channel area.
              title: Channel area
              type:
              - string
              - 'null'
            channel_area_unit:
              description: The units for channel area.
              title: Channel area unit
              type:
              - string
              - 'null'
            channel_evenness:
              description: The channel evenness from bank to bank.
              title: Channel evenness
              type:
              - string
              - 'null'
            channel_flow:
              description: Channel discharge.
              title: Channel flow
              type:
              - string
              - 'null'
            channel_flow_unit:
              description: The units for channel discharge.
              title: Channel flow unit
              type:
              - string
              - 'null'
            channel_location_direction:
              description: Location of the measurement from the gage.
              title: Channel Location Direction
              type:
              - string
              - 'null'
            channel_location_distance:
              description: The channel location distance.
              title: Channel location distance
              type:
              - string
              - 'null'
            channel_location_distance_unit:
              description: The units for channel location distance.
              title: Channel location distance unit
              type:
              - string
              - 'null'
            channel_material:
              description: The channel material.
              title: Channel material
              type:
              - string
              - 'null'
            channel_measurement_type:
              description: The channel measurement type.
              title: Channel measurement type
              type:
              - string
              - 'null'
            channel_name:
              description: The channel name.
              title: Channel name
              type:
              - string
              - 'null'
            channel_stability:
              description: The stability of the channel material.
              title: Channel stability
              type:
              - string
              - 'null'
            channel_velocity:
              description: The mean channel velocity.
              title: Channel velocity
              type:
              - string
              - 'null'
            channel_velocity_unit:
              description: The units for channel velocity.
              title: Channel velocity unit
              type:
              - string
              - 'null'
            channel_width:
              description: The channel width.
              title: Channel width
              type:
              - string
              - 'null'
            channel_width_unit:
              description: The units for channel width.
              title: Channel width unit
              type:
              - string
              - 'null'
            field_visit_id:
              description: 'A universally unique identifier (UUID) for the field visit. Multiple measurements may be made during a single field visit.

                '
              format: uuid
              title: Field visit ID
              type:
              - string
              - 'null'
            horizontal_velocity_description:
              description: The horizontal velocity description.
              title: Horizontal velocity description
              type:
              - string
              - 'null'
            id:
              description: 'A universally unique identifier (UUID) representing a single version of a record. It is not stable over time. Every time the record is refreshed in our database (which may happen as part of normal operations and does not imply any change to the data itself) a new ID will be generated. To uniquely identify a single observation over time, compare the `time` and `time_series_id` fields; each time series will only have a single observation at a given `time`.

                '
              format: uuid
              title: Record identifier
              type:
              - string
              - 'null'
            last_modified:
              description: "The last time a record was refreshed in our database. This may happen due to regular operational processes and does not necessarily indicate anything about the measurement has changed.\nYou can query this field using date-times or intervals, adhering to RFC 3339, or using ISO 8601 duration objects. Intervals may be bounded or half-bounded (double-dots at start or end).\nExamples:\n\n  - A date-time: \"2018-02-12T23:20:50Z\"\n  - A bounded interval: \"2018-02-12T00:00:00Z/2018-03-18T12:31:12Z\"\n  - Half-bounded intervals: \"2018-02-12T00:00:00Z/..\" or \"../2018-03-18T12:31:12Z\"\n  - Duration objects: \"P1M\" for data from the past month or \"PT36H\" for the last 36 hours\n\nOnly features that have a `last_modified` that intersects the value of datetime are selected.\n"
              title: Last modified date
              type:
              - string
              - 'null'
            longitudinal_velocity_description:
              description: The longitudinal velocity description.
              title: Longitudinal velocity description
              type:
              - string
              - 'null'
            measurement_number:
              description: Measurement number.
              title: Measurement number
              type:
              - string
              - 'null'
            measurement_type:
              description: The measurement type.
              title: Measurement type
              type:
              - string
              - 'null'
            monitoring_location_id:
          

# --- truncated at 32 KB (49 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/u-s-geological-survey/refs/heads/main/openapi/u-s-geological-survey-channel-measurements-api-openapi.yml