DIAS Metadata: Sentinel-1

DIAS Metadata for Sentinel-1 Products

Summary

  1. Level-0: SM(1-6) ; EW ; IW
  2. Level-1: SM(1-6) SLC, GRD ; EW SLC, GRD ; IW SLC, GRD ; WV SLC, GRDM
  3. Level-2: SM(1-6) OCN ; EW OCN ; IW OCN ; WV OCN

Level-0: SM(1-6) ; EW ; IW

Category: Acquisition

  • Begin position (beginPosition) – text/date+iso8601
    Acquisition start date time, i.e. time of the oldest data within the product.
    Format standard: YYYY-MM-DDThh:mm:ss.mmmZ
  • End position (endPosition) – text/date+iso8601
    Acquisition end date time, i.e. time of the most recent data within the product.
    Format standard: YYYY-MM-DDThh:mm:ss.mmmZ
  • Acquisition type (acquisitionType) – text/plain
    Used to distinguish at a high level the appropriateness of the acquisition for ‘general’ use, whether the product is a nominal acquisition, special calibration product or other.
    Values: ‘NOMINAL’, ‘CALIBRATION’, ‘OTHER’.
  • Status (status) – text/plain
    Refers to product status.
    Values : ‘ARCHIVED’, ‘ACQUIRED’, ‘CANCELLED’, ‘FAILED’, ‘PLANNED’, ‘POTENTIAL’, ‘REJECTED’.
  • Polarisation channels (polarisationChannels) – text/plain
    For radars designed to transmit either vertically polarised or horizontally polarised radiation. This means that the electric field of the wave is in a vertical plane or a horizontal plane. Likewise, the radar can receive either vertically or horizontally polarised radiation, and sometimes both. The planes of transmitted and received polarisation are designated by the letters H for Horizontal and V for Vertical. Thus the polarisation of a radar image can be HH, for horizontal transmit, horizontal receive, VV for vertical transmit, vertical receive, HV for horizontal transmit vertical receive, and vice versa (VH).
    Possible values: ‘HH’, ‘VV’, ‘HH,HV’, ‘VV,VH’, ‘VH,VV’.
  • Datatake identifier (dataTakeIdentifier) – text/plain
    Datatake identifier. Identifier format is mission specific.
    Examples of values are: ‘GS2B_20180321T060729_005422_N02.06’, ‘148335’.

Category: Ground information

  • Footprint (footprint) – application/gml+xml
    Boundaries of the frame. In addition to the constraints imposed by the GML type for linear rings, the coordinates shall be declared in a counter-clockwise order.

Category: Instrument

  • Instrument name (instrumentName) – text/plain
    The instrument name used for acquiring the data.
    Value: ‘Synthetic Aperture Radar (C-band)’.
  • Instrument short name (instrumentShortName) – text/plain
    The short name of the instrument.
    Value: ‘SAR-C’.

Category: Orbit

  • Phase identifier (phaseIdentifier) – text/plain
    Orbit phase to which the oldest data unit of the product refers.
  • Orbit number (orbitNumber) – text/integer
    Absolute orbit number to which the oldest data unit of the product refers.
  • Last orbit number (lastOrbitNumber) – text/integer
    Absolute orbit number to which the most recent data unit of the product refers.
  • Orbit direction (orbitDirection) – text/plain
    Acquisition orbit direction.
    Value: ‘ASCENDING’ or ‘DESCENDING’.
  • Cycle number (cycleNumber) – text/integer
    Orbit number cycle to which the oldest data unit of the product refers.
  • Relative orbit number (relativeOrbitNumber) – text/integer
    Relative orbit number to which the oldest data unit of the product refers.
  • Last relative orbit number (lastRelativeOrbitNumber) – text/integer
    Relative orbit number to which the most recent data unit of the product refers.

Category: Other

  • Filename (filename) – text/plain
    Package file name, with extension ‘.SAFE’.
  • Product type (productType) – text/plain
    Product type.
    Examples of values are: ‘S3_RAW__0S’, ‘EW_RAW__0S’…
  • Size (size) – text/plain
    Size of the package.
  • Format (format) – text/plain
    Format of the product.
    Value: ‘SAFE’.

Category: Platform

  • Platform name (platformName) – text/plain
    The mission full name of the platform. This name is not a perfect identifier.
    Value: ‘Sentinel-1’.
  • Platform short name (platformShortName) – text/plain
    The mission short name of the platform. This name is not a perfect identifier.
    Value: ‘S1’.
  • Platform serial identifier (platformSerialIdentifier) – text/plain
    The platform serial identifier is the sequence number of the platform among the mission.
    Value: ‘1A’ for Sentinel-1A, ‘1B’ for Sentinel-1B.
  • Platform NSSDC identifier (platformNssdcid) – text/plain
    Univocally identifies the platform. The exact syntax and lexical space of this identifier is defined by the World Data Center for Satellite Information (WDC-SI), which depends on the NASA’s National Space Science Data Center. For each platform, the exact identifier is available from the mission name at the address: http://nssdc.gsfc.nasa.gov/nmc/sc-query.html.
    Value: ‘2014-016A’ for Sentinel-1A, ‘2016-025A’ for Sentinel-1B.

Category: Processing

  • Processing level (processingLevel) – text/plain
    The level of the last processing.
    Value: ‘LEVEL-0’.
  • Processing date (processingDate) – text/date+iso8601
    Date time of the last processing.

Category: Sensor

  • Resolution detail (resolutionDetail) – text/plain
    Product resolution.
    Values: ‘FULL’, ‘HIGH’, ‘MEDIUM’, ‘NOT APPLICABLE’.
  • Sensor type (sensorType) – text/plain
    Sensor type based on codelist.
    Value: ‘RADAR’.
  • Sensor operational mode (sensorOperationalMode) – text/plain
    Sensor mode. Possible values are mission specific.

Level-1: SM(1-6) SLC, GRD ; EW SLC, GRD ; IW SLC, GRD ; WV SLC, GRDM

Category: Acquisition

  • Begin position (beginPosition) – text/date+iso8601
    Acquisition start date time, i.e. time of the oldest data within the product.
    Format standard: YYYY-MM-DDThh:mm:ss.mmmZ
  • End position (endPosition) – text/date+iso8601
    Acquisition end date time, i.e. time of the most recent data within the product.
    Format standard: YYYY-MM-DDThh:mm:ss.mmmZ
  • Acquisition type (acquisitionType) – text/plain
    Used to distinguish at a high level the appropriateness of the acquisition for ‘general’ use, whether the product is a nominal acquisition, special calibration product or other.
    Values: ‘NOMINAL’, ‘CALIBRATION’, ‘OTHER’.
  • Status (status) – text/plain
    Refers to product status.
    Values : ‘ARCHIVED’, ‘ACQUIRED’, ‘CANCELLED’, ‘FAILED’, ‘PLANNED’, ‘POTENTIAL’, ‘REJECTED’.
  • Polarisation channels (polarisationChannels) – text/plain
    For radars designed to transmit either vertically polarised or horizontally polarised radiation. This means that the electric field of the wave is in a vertical plane or a horizontal plane. Likewise, the radar can receive either vertically or horizontally polarised radiation, and sometimes both. The planes of transmitted and received polarisation are designated by the letters H for Horizontal and V for Vertical. Thus the polarisation of a radar image can be HH, for horizontal transmit, horizontal receive, VV for vertical transmit, vertical receive, HV for horizontal transmit vertical receive, and vice versa (VH).
    Possible values: ‘HH’, ‘VV’, ‘HH,HV’, ‘VV,VH’, ‘VH,VV’.
  • Datatake identifier (dataTakeIdentifier) – text/plain
    Datatake identifier. Identifier format is mission specific.
    Examples of values are: ‘GS2B_20180321T060729_005422_N02.06’, ‘148335’.

Category: Ground information

  • Footprint (footprint) – application/gml+xml
    Boundaries of the frame. In addition to the constraints imposed by the GML type for linear rings, the coordinates shall be declared in a counter-clockwise order.

Category: Instrument

  • Instrument name (instrumentName) – text/plain
    The instrument name used for acquiring the data.
    Value: ‘Synthetic Aperture Radar (C-band)’.
  • Instrument short name (instrumentShortName) – text/plain
    The short name of the instrument.
    Value: ‘SAR-C’.

Category: Orbit

  • Phase identifier (phaseIdentifier) – text/plain
    Orbit phase to which the oldest data unit of the product refers.
  • Orbit number (orbitNumber) – text/integer
    Absolute orbit number to which the oldest data unit of the product refers.
  • Last orbit number (lastOrbitNumber) – text/integer
    Absolute orbit number to which the most recent data unit of the product refers.
  • Orbit direction (orbitDirection) – text/plain
    Acquisition orbit direction.
    Value: ‘ASCENDING’ or ‘DESCENDING’.
  • Cycle number (cycleNumber) – text/integer
    Orbit number cycle to which the oldest data unit of the product refers.
  • Relative orbit number (relativeOrbitNumber) – text/integer
    Relative orbit number to which the oldest data unit of the product refers.
  • Last relative orbit number (lastRelativeOrbitNumber) – text/integer
    Relative orbit number to which the most recent data unit of the product refers.

Category: Other

  • Filename (filename) – text/plain
    Package file name, with extension ‘.SAFE’.
  • Product type (productType) – text/plain
    Product type.
    Examples of values are: ‘EW_SLC__1S’, ‘EW_GRDM_1S’…
  • Size (size) – text/plain
    Size of the package.
  • Timeliness (timeliness) – text/plain
    Timeliness of the product, such as ‘near real time’, ‘rush’. Possible values are mission specific.
    Examples of values are: ‘NRT’, ‘NOMINAL’, ‘NTC’, ‘STC’.
  • Format (format) – text/plain
    Format of the product.
    Value: ‘SAFE’.

Category: Platform

  • Platform name (platformName) – text/plain
    The mission full name of the platform. This name is not a perfect identifier.
    Value: ‘Sentinel-1’.
  • Platform short name (platformShortName) – text/plain
    The mission short name of the platform. This name is not a perfect identifier.
    Value: ‘S1’.
  • Platform serial identifier (platformSerialIdentifier) – text/plain
    The platform serial identifier is the sequence number of the platform among the mission.
    Value: ‘1A’ for Sentinel-1A, ‘1B’ for Sentinel-1B.
  • Platform NSSDC identifier (platformNssdcid) – text/plain
    Univocally identifies the platform. The exact syntax and lexical space of this identifier is defined by the World Data Center for Satellite Information (WDC-SI), which depends on the NASA’s National Space Science Data Center. For each platform, the exact identifier is available from the mission name at the address: http://nssdc.gsfc.nasa.gov/nmc/sc-query.html.
    Value: ‘2014-016A’ for Sentinel-1A, ‘2016-025A’ for Sentinel-1B.

Category: Processing

  • Processing level (processingLevel) – text/plain
    The level of the last processing.
    Value: ‘LEVEL-1’.
  • Processing date (processingDate) – text/date+iso8601
    Date time of the last processing.

Category: Sensor

  • Resolution detail (resolutionDetail) – text/plain
    Product resolution.
    Values: ‘FULL’, ‘HIGH’, ‘MEDIUM’, ‘NOT APPLICABLE’.
  • Sensor type (sensorType) – text/plain
    Sensor type based on codelist.
    Value: ‘RADAR’.
  • Sensor operational mode (sensorOperationalMode) – text/plain
    Sensor mode. Possible values are mission specific.
  • Swath identifier (swathIdentifier) – text/plain
    Swath identifier for the sensor.

Level-2: SM(1-6) OCN ; EW OCN ; IW OCN ; WV OCN

Category: Acquisition

  • Begin position (beginPosition) – text/date+iso8601
    Acquisition start date time, i.e. time of the oldest data within the product.
    Format standard: YYYY-MM-DDThh:mm:ss.mmmZ
  • End position (endPosition) – text/date+iso8601
    Acquisition end date time, i.e. time of the most recent data within the product.
    Format standard: YYYY-MM-DDThh:mm:ss.mmmZ
  • Acquisition type (acquisitionType) – text/plain
    Used to distinguish at a high level the appropriateness of the acquisition for ‘general’ use, whether the product is a nominal acquisition, special calibration product or other.
    Values: ‘NOMINAL’, ‘CALIBRATION’, ‘OTHER’.
  • Status (status) – text/plain
    Refers to product status.
    Values : ‘ARCHIVED’, ‘ACQUIRED’, ‘CANCELLED’, ‘FAILED’, ‘PLANNED’, ‘POTENTIAL’, ‘REJECTED’.
  • Polarisation channels (polarisationChannels) – text/plain
    For radars designed to transmit either vertically polarised or horizontally polarised radiation. This means that the electric field of the wave is in a vertical plane or a horizontal plane. Likewise, the radar can receive either vertically or horizontally polarised radiation, and sometimes both. The planes of transmitted and received polarisation are designated by the letters H for Horizontal and V for Vertical. Thus the polarisation of a radar image can be HH, for horizontal transmit, horizontal receive, VV for vertical transmit, vertical receive, HV for horizontal transmit vertical receive, and vice versa (VH).
    Possible values: ‘HH’, ‘VV’, ‘HH,HV’, ‘VV,VH’, ‘VH,VV’.
  • Datatake identifier (dataTakeIdentifier) – text/plain
    Datatake identifier. Identifier format is mission specific.
    Examples of values are: ‘GS2B_20180321T060729_005422_N02.06’, ‘148335’.

Category: Ground information

  • Footprint (footprint) – application/gml+xml
    Boundaries of the frame. In addition to the constraints imposed by the GML type for linear rings, the coordinates shall be declared in a counter-clockwise order.

Category: Instrument

  • Instrument name (instrumentName) – text/plain
    The instrument name used for acquiring the data.
    Value: ‘Synthetic Aperture Radar (C-band)’.
  • Instrument short name (instrumentShortName) – text/plain
    The short name of the instrument.
    Value: ‘SAR-C’.

Category: Orbit

  • Phase identifier (phaseIdentifier) – text/plain
    Orbit phase to which the oldest data unit of the product refers.
  • Orbit number (orbitNumber) – text/integer
    Absolute orbit number to which the oldest data unit of the product refers.
  • Last orbit number (lastOrbitNumber) – text/integer
    Absolute orbit number to which the most recent data unit of the product refers.
  • Orbit direction (orbitDirection) – text/plain
    Acquisition orbit direction.
    Value: ‘ASCENDING’ or ‘DESCENDING’.
  • Cycle number (cycleNumber) – text/integer
    Orbit number cycle to which the oldest data unit of the product refers.
  • Relative orbit number (relativeOrbitNumber) – text/integer
    Relative orbit number to which the oldest data unit of the product refers.
  • Last relative orbit number (lastRelativeOrbitNumber) – text/integer
    Relative orbit number to which the most recent data unit of the product refers.

Category: Other

  • Filename (filename) – text/plain
    Package file name, with extension ‘.SAFE’.
  • Product type (productType) – text/plain
    Product type.
    Examples of values are: ‘IW_OCN__2S’, ‘WV_OCN__2S’…
  • Size (size) – text/plain
    Size of the package.
  • Timeliness (timeliness) – text/plain
    Timeliness of the product, such as ‘near real time’, ‘rush’. Possible values are mission specific.
    Examples of values are: ‘NRT’, ‘NOMINAL’, ‘NTC’, ‘STC’.
  • Format (format) – text/plain
    Format of the product.
    Value: ‘SAFE’.

Category: Platform

  • Platform name (platformName) – text/plain
    The mission full name of the platform. This name is not a perfect identifier.
    Value: ‘Sentinel-1’.
  • Platform short name (platformShortName) – text/plain
    The mission short name of the platform. This name is not a perfect identifier.
    Value: ‘S1’.
  • Platform serial identifier (platformSerialIdentifier) – text/plain
    The platform serial identifier is the sequence number of the platform among the mission.
    Value: ‘1A’ for Sentinel-1A, ‘1B’ for Sentinel-1B.
  • Platform NSSDC identifier (platformNssdcid) – text/plain
    Univocally identifies the platform. The exact syntax and lexical space of this identifier is defined by the World Data Center for Satellite Information (WDC-SI), which depends on the NASA’s National Space Science Data Center. For each platform, the exact identifier is available from the mission name at the address: http://nssdc.gsfc.nasa.gov/nmc/sc-query.html.
    Value: ‘2014-016A’ for Sentinel-1A, ‘2016-025A’ for Sentinel-1B.

Category: Processing

  • Processing level (processingLevel) – text/plain
    The level of the last processing.
    Value: ‘LEVEL-2’.
  • Processing date (processingDate) – text/date+iso8601
    Date time of the last processing.

Category: Sensor

  • Resolution detail (resolutionDetail) – text/plain
    Product resolution.
    Values: ‘FULL’, ‘HIGH’, ‘MEDIUM’, ‘NOT APPLICABLE’.
  • Sensor type (sensorType) – text/plain
    Sensor type based on codelist.
    Value: ‘RADAR’.
  • Sensor operational mode (sensorOperationalMode) – text/plain
    Sensor mode. Possible values are mission specific.
  • Swath identifier (swathIdentifier) – text/plain
    Swath identifier for the sensor.