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Element Description
Note: This page is a draft
This element provides the geophysical parameters that were obtained during data collection. It contains not only the name of the parameters, but it also includes the associated data quality stats and data quality flags. The data quality stats provide information on the measurement of the quality of the data while the data quality flags represent the overall quality assurance levels placed on the granule's parameters.
Best Practices
Measured Parameters is an optional element; however, at bare minimum, the parameter names must be given if a data provider chooses to provide this element.
- Parameter Name: The name of the measured geophysical parameters represented in the data
- QA Stats: Provides a measure of the data quality statistics associated with the data
- QA Percent Missing Data: Provides the percent of the data that is missing at the granule level
- QA Percent Out of Bounds Data: Provides the percent of the granule data that was out of bounds
- QA Percent Interpolated Data: Provides the percent of the granule data that was interpolated
- QA percent Cloud Cover: provides a measurement of the cloud cover amount within a granule; please keep in mind that the definition of a cloud can vary from one data provider to another
Note: All of these sub-elements are given values between 0 and 100.
- QA Flags: Provide the science, operational and automatic quality flags for the data in order to provide a measurement for the overall quality assurance levels of the granule level data
- Automatic Quality Flag: This sub-element applies to the quality of each parameter defined within the granule based on guidelines guidelines set by the data provider
- Ex: "PASSED", "FAILED", "SUSPECT", "UNDETERMINED"
- Automatic Quality Flag Explanation: This sub-element details the criteria utilized for determining the automatic quality flags
- Operational Quality Flag: This sub-element applies to the operational quality of each parameter defined within the granule based on guidelines set by the data provider
Ex: "PASSED", "FAILED", "BEING INVESTIGATED", "NOT INVESTIGATED", "INFERRED PASSED", "INFERRED FAILED", "SUSPECT", "UNDETERMINED"
- Operational Quality Flag Explanation: This sub-element details the criteria utilized for determining the operational quality flags for determining the operational quality flags
- Science Quality Flag: This sub-element applies to the science quality of each parameter defined within the granule based on guidelines set by the data provider
- Ex: "PASSED", "FAILED", "BEING INVESTIGATED", "NOT INVESTIGATED", "INFERRED PASSED", "INFERRED FAILED", "SUSPECT", "HOLD", "UNDETERMINED"
- Science Quality Flag Explanation: This sub-element details the criteria utilized for determining the science quality flags
- Automatic Quality Flag: This sub-element applies to the quality of each parameter defined within the granule based on guidelines guidelines set by the data provider
Note: The QA flag sub-elements are enumerated while the explanations have a maximum text length of 2,048 characters.
Lastly, providing all of the aforementioned sub-elements is completely optional; however, if a data provider chooses to provide any QA Stats or QA flags information, at least one sub-element from its respective category must be provided.
Examples:
Parameter Name Examples: "VEGETATION", "BIOMASS", "FORESTS", "CROWN", "PLANT CHARACTERISTICS", "VEGETATION SPECIES"
QA Percent Missing Data: 0
Element Specification
The Measured Parameters element is optional. (Cardinality: 0..*) If However, if measured parameters are provided, the parameter names are required.
Model | Element | Type | Constraints | Required? | Cardinality | Notes |
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UMM-G | Measured Parameter/ParameterName | String | 1 - 250 characters | Yes, if applicable | 1 | Only required if measured parameters are provided. |
UMM-G | Measured Parameter/QAStats/QAPercentMissing Data | Number | 0 - 100 | N | 0..1 | |
UMM-G | Measured Parameter/QAStats/QAPercentOut of Bounds Data | Number | 0 - 100 | N | 0..1 | |
UMM-G | Measured Parameter/QAStats/QAPercentInterpolated Data | Number | 0 - 100 | N | 0..1 | |
UMM-G | Measured Parameter/QAStats/QAPercentCloud Cover | Number | 0 - 100 | N | 0..1 | |
UMM-G | Measured Parameter/QAFlags/AutomaticQuality Flag | Enumeration | PASSED FAILED SUSPECT UNDETERMINED | N | 0..1 | |
UMM-G | Measured Parameter/QAFlags/AutomaticQualityFlagExplanation | String | 1 - 2048 characters | N | 0..1 | |
UMM-G | Measured Parameter/QAFags/OperationalQualityFlag | Enumeration | PASSED FAILED BEING INVESTIGATED NOT INVESTIGATED INFERRED PASSED INFERRED FAILED SUSPECT UNDETERMINED | N | 0..1 | |
UMM-G | Measured Parameter/QAFlags/OperationalQualityFlagExplanation | String | 1 - 2048 characters | N | 0..1 | |
UMM-G | Measured Parameter/QAFlags/ScienceQualityFlag | Enumeration | PASSED FAILED BEING INVESTIGATED NOT INVESTIGATED INFERRED PASSED INFERRED FAILED SUSPECT HOLD UNDETERMINED | N | 0..1 | |
UMM-G | Measured Parameter/QAFlags/ScienceQualityFlagExplanation | String | 1 - 2048 characters | N | 0..1 |
Metadata Validation and QA/QC
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).
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Please see the expandable sections below for flowchart details.
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ARC Automated Rules |
Dialect Mappings
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ECHO 10The Measured Parameters element is optional. (Cardinality: 0..*) If measured parameters are provided, the parameter names are required.
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ISO 19115-2 MENDSThe path where Granule UR is provided in ISO is optional, however, a Granule UR is required for all granule metadata submitted to the CMR (Cardinality: 0..1).
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ISO 19115-2 SMAPMeasured Parameters currently does not map to ISO 19115-2 SMAP.
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UMM Migration
UMM Version 1.4.0 | Translation Direction | UMM Version 1.5.0 |
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Future Mappings
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ISO 19115-1Measured Parameters currently does not map to ISO 19915-1.
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History
UMM Versioning
Version | Date | What Changed |
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1.5.0 | 01/30/2019 | No changes were made for Measured Parameters during the transition from version 1.4.0 to 1.5.0. |
1.4.0 | 08/01/2018 | No changes were made for Measured Parameters during the transition from version 1.3.0 to 1.4.0. |
ARC Documentation
Version | Date | What Changed | Author |
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1.0 | 02/15/2019 | Recommendations/priority matrix transferred from internal ARC documentation to wiki space |