The Characteristics sub-elements can be used to describe attributes unique to the parent element. Currently, characteristics can be provided for the Platform, Instrument, and "ComposedOf" parent elements. While providing characteristics is optional, if provided, all of the sub-elements are required. The Characteristic sub-elements include:
Characteristics/Name:
Characteristics/Description:
Characteristics/DataType:
Characteristics/Unit:
Characteristics/Value:
Examples:
Example for the ICESat Platform:
Characteristics/Name: OrbitInclination
Characteristics/Description: The angle between the orbit plane and the Earth's equatorial plane.
Characteristics/DataType: FLOAT
Characteristics/Unit: Degrees
Characteristics/Value: 94.0
Example for the GLAS Instrument:
Characteristics/Name: SwathWidth
Characteristics/Description: The width of the sensor scan as the satellite moves along the ground track.
Characteristics/DataType: INT
Characteristics/Unit: Kilometers
Characteristics/Value: 2
Example for a photon counter sensor:
Characteristics/Name: Wavelength
Characteristics/Description: The wavelength at which photon returns were measured.
Characteristics/DataType: INT
Characteristics/Unit: Nanometers
Characteristics/Value: 532
Providing Characteristics is optional. An unlimited number of Characteristics may be specified (Cardinality: 0..*). If Characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required.
<parent>: For the complete element mappings, please see the appropriate parent element page: Platform, Instrument, ComposedOf
Model | Element | Type | Constraints | Required? | Cardinality |
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UMM-Common | <parent>/Characteristics/Name | String | 1 - 80 characters | Yes, if applicable | 1 |
UMM-Common | <parent>/Characteristics/Description | String | 1 - 2048 characters | Yes, if applicable | 1 |
UMM-Common | <parent>/Characteristics/DataType | Enumeration | STRING FLOAT INT BOOLEAN DATE TIME DATETIME DATE_STRING TIME_STRING DATETIME_STRING | Yes, if applicable | 1 |
UMM-Common | <parent>/Characteristics/Unit | String | 1 - 20 characters | Yes, if applicable | 1 |
UMM-Common | <parent>/Characteristics/Value | String | 1 - 80 characters | Yes, if applicable | 1 |
All metadata entering the CMR goes through the below process to ensure metadata quality requirements are met. All records undergo CMR validation before entering the system. The process of QA/QC is slightly different for NASA and non-NASA data providers. Non-NASA providers include interagency and international data providers and are referred to as the International Directory Network (IDN).
Please see the expandable sections below for flowchart details.
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ARC Automated Checks
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DIF 9 (Note: DIF-9 is being phased out and will no longer be supported after 2018) |
DIF 10Providing Characteristics is optional. An unlimited number of Characteristics may be specified (Cardinality: 0..*). If Characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required. <parent>: For the complete element mappings, please see the appropriate parent element page: Platform, Instrument, Sensor
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ECHO 10Providing Characteristics is optional. An unlimited number of Characteristics may be specified (Cardinality: 0..*). If Characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required. <parent>: For the complete element mappings, please see the appropriate parent element page: Platform, Instrument, Sensor
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ISO 19115-2 MENDSProviding Characteristics is optional. An unlimited amount of Characteristics may be specified (Cardinality: 0..*). If Characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required. <parent>: For the complete element mappings, please see the appropriate parent element page: Platform, Instrument, Sensor
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ISO 19115-2 SMAPProviding Characteristics is optional. An unlimited amount of Characteristics may be specified (Cardinality: 0..*). If Characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required. <parent>: For the complete element mappings, please see the appropriate parent element page: Platform, Instrument, Sensor
Example Mapping
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None
Future Mappings
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Version | Date | What Changed |
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1.15.5 | 12/3/2020 | No changes were made for Characteristics during the transition from version 1.15.4 to 1.15.5 |
1.15.4 | 9/18/2020 | No changes were made for Characteristics during the transition from version 1.15.3 to 1.15.4 |
1.15.3 | 7/1/2020 | No changes were made for Characteristics during the transition from version 1.15.2 to 1.15.3 |
1.15.2 | 5/20/2020 | No changes were made for Characteristics during the transition from version 1.15.1 to 1.15.2 |
1.15.1 | 3/25/2020 | No changes were made for Characteristics during the transition from version 1.15.0 to 1.15.1 |
1.15.0 | 2/26/2020 | No changes were made for Characteristics during the transition from version 1.14.0 to 1.15.0 |
1.14.0 | 10/21/2019 | No changes were made for Characteristics during the transition from version 1.13.0 to 1.14.0 |
1.13.0 | 04/11/2019 | No changes were made for Characteristics during the transition from version 1.12.0 to 1.13.0 |
1.12.0 | 01/22/2019 | No changes were made for Characteristics during the transition from version 1.11.0 to 1.12.0. |
1.11.0 | 11/28/2018 | No changes were made for Characteristics during the transition from version 1.10.0 to 1.11.0. |
1.10.0 | 05/02/2018 | No changes were made for Characteristics during the transition from version 1.9.0 to 1.10.0. |
Version | Date | What Changed | Author |
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1.0 | 05/04/18 | Recommendations/priority matrix transferred from internal ARC documentation to wiki space | Jeanne' le Roux |