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Element Description
The Cloud Cover element provides a measurement, as a percentage, of the area of a granule (i.e. an individual data file) that is obscured by clouds. Because the definition of a cloud can vary from one data provider to another, this measurement is generally dataset-specific.
Best Practices
The Cloud Cover element is optional. Please be aware this element may vary based on the data provider, due to differing definitions of what is constituted as a cloud.
Examples:
Cloud Cover: "50"
Cloud Cover: "0"
Cloud Cover: "30.5"
Element Specification
The Cloud Cover element is optional, and may not be repeated (Cardinality: 0..1)
Model | Element | Type | Constraints | Required? | Cardinality |
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UMM-G | CloudCover | Number | 0 - 100 | No | 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 TBDChecks ARC uses the pyQuARC library for automated metadata checks. Please see the pyQuARC GitHub for more information. |
Dialect Mappings
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ECHO 10Cloud Cover is optional in ECHO 10, and may not be repeated (Cardinality: 0..1).
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ISO 19115-2 MENDSThe Cloud Cover element is optional in ISO 19115-2. The path may be repeated in ISO, but only the first value provided will be translated to the CMR (Cardinality: 0..1).
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ISO 19115-2 SMAPThe Cloud Cover element 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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History
UMM Versioning
Version | Date | What Changed |
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1.6.0 | 11/4/2019 | No changes were made for Cloud Cover during the transition from version 1.5.0 to 1.6.0. |
1.5.0 | 01/30/2019 | No changes were made for Cloud Cover during the transition from version 1.4.0 to 1.5.0. |
1.4.0 | 08/01/2018 | No changes were made for Cloud Cover 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 | 04/12/2019 | Recommendations/priority matrix transferred from internal ARC documentation to wiki space |