---
# Metadata Type
# url: https://explorer.csiro.easi-eo.solutions/metadata-types/eo3_s1_nrb.odc-type.yaml
name: eo3_s1_nrb
description: EO3 for DEA Sentinel-1 Normalised Radar backscatter
dataset:
  id:
  - id
  label:
  - label
  format:
  - properties
  - odc:file_format
  sources:
  - lineage
  - source_datasets
  creation_dt:
  - properties
  - odc:processing_datetime
  grid_spatial:
  - grid_spatial
  - projection
  measurements:
  - measurements
  search_fields:
    lat:
      type: double-range
      max_offset:
      - - extent
        - lat
        - end
      min_offset:
      - - extent
        - lat
        - begin
      description: Latitude range.
    lon:
      type: double-range
      max_offset:
      - - extent
        - lon
        - end
      min_offset:
      - - extent
        - lon
        - begin
      description: Longitude range.
    time:
      type: datetime-range
      max_offset:
      - - properties
        - dtr:end_datetime
      - - properties
        - datetime
      min_offset:
      - - properties
        - dtr:start_datetime
      - - properties
        - datetime
      description: Acquisition time range.
    beam_id:
      type: string
      offset:
      - properties
      - sarard:beam_id
      indexed: false
      description: The beam id (also known as subswath id) that contains the 
        burst.
    crs_raw:
      type: string
      offset:
      - crs
      indexed: false
      description: The raw CRS string as it appears in the metadata.
    burst_id:
      type: string
      offset:
      - properties
      - sarard:burst_id
      indexed: true
      description: The OPERA-ISCE3 Burst ID, formatted as 
        "t{track_number}_{esa_burst_id}_{swath_id}".
    platform:
      type: string
      offset:
      - properties
      - eo:platform
      indexed: false
      description: The platform code.
    scene_id:
      type: string
      offset:
      - properties
      - sarard:scene_id
      indexed: false
      description: The ESA scene ID (e.g. 
        S1A_EW_GRDM_1SDH_20211219T152835_20211219T152939_041079_04E161_47D4).
    source_id:
      type: string
      offset:
      - properties
      - sarard:source_id
      indexed: false
      description: The source file for the dataset.
    instrument:
      type: string
      offset:
      - properties
      - eo:instrument
      indexed: false
      description: The instrument name.
    orbit_file:
      type: string
      offset:
      - properties
      - sarard:orbit_file
      indexed: false
      description: The source file for the orbit.
    orbit_cycle:
      type: integer
      offset:
      - properties
      - sat:orbit_cycle
      indexed: false
      description: The number of days for the satellite to repeat its orbit 
        track.
    orbit_state:
      type: string
      offset:
      - properties
      - sat:orbit_state
      indexed: false
      description: The orbit state (one of ascending or descending).
    region_code:
      type: string
      offset:
      - properties
      - odc:region_code
      indexed: true
      description: "The spatial reference code from the provider. For Sentinel-1 normalised
        radar backscatter  processed with the OPERA-ISCE3 pipeline  the region code
        is comprised of three pieces of  ESA metadata, formatted as: \"t{track_number}_{esa_burst_id}_{swath_id}\"\
        . In general it is a unique string identifier that datasets covering roughly
        the same spatial region share.        \n"
    orbit_source:
      type: string
      offset:
      - properties
      - s1:orbit_source
      indexed: false
      description: The orbit file type.
    conversion_eq:
      type: string
      offset:
      - properties
      - sarard:conversion_eq
      indexed: false
      description: The equation to convert product to decibels.
    absolute_orbit:
      type: integer
      offset:
      - properties
      - sat:absolute_orbit
      indexed: false
      description: The absolute orbit number of the satellite.
    product_family:
      type: string
      offset:
      - properties
      - odc:product_family
      indexed: false
      description: The product family code.
    relative_orbit:
      type: integer
      offset:
      - properties
      - sat:relative_orbit
      indexed: false
      description: The orbit number in the satellite's repeat cycle.
    dataset_version:
      type: string
      offset:
      - properties
      - odc:dataset_version
      indexed: false
      description: Version number for the dataset, with the leading number 
        indicating the collection.
    instrument_mode:
      type: string
      offset:
      - properties
      - sar:instrument_mode
      indexed: false
      description: The acquisition mode (one of SM, IW, EW, WV).
    measurement_type:
      type: string
      offset:
      - properties
      - sarard:measurement_type
      indexed: false
      description: The backscatter measurement type (one of gamma_0, sigma_0, 
        beta_0).
    noise_removal_applied:
      type: string
      offset:
      - properties
      - sarard:noise_removal_applied
      indexed: false
      description: Whether noise removal has been applied.
    observation_direction:
      type: string
      offset:
      - properties
      - sar:observation_direction
      indexed: false
      description: The observation direction of the satellite relative to the 
        flight path.
    measurement_convention:
      type: string
      offset:
      - properties
      - sarard:measurement_convention
      indexed: false
      description: The convention used to measure backscatter.
    speckle_filter_applied:
      type: string
      offset:
      - properties
      - sarard:speckle_filter_applied
      indexed: false
      description: Whether a speckle filter has been applied.
    far_range_incidence_angle:
      type: double
      offset:
      - properties
      - sarard:far_range_incidence_angle
      indexed: false
      description: The far range incidence angle.
    near_range_incidence_angle:
      type: double
      offset:
      - properties
      - sarard:near_range_incidence_angle
      indexed: false
      description: The near range incidence angle.
    bistatic_correction_applied:
      type: string
      offset:
      - properties
      - sarard:bistatic_correction_applied
      indexed: false
      description: Whether bistatic correction has been applied.
    ionospheric_correction_applied:
      type: string
      offset:
      - properties
      - sarard:ionospheric_correction_applied
      indexed: false
      description: Whether ionospheric correction has been applied.
    wet_tropospheric_correction_applied:
      type: string
      offset:
      - properties
      - sarard:wet_tropospheric_correction_applied
      indexed: false
      description: Whether wet tropospheric correction has been applied.
    static_tropospheric_correction_applied:
      type: string
      offset:
      - properties
      - sarard:static_tropospheric_correction_applied
      indexed: false
      description: Whether static tropospheric correction has been applied.
...