Element Description
Note: This page is a draft/ work in progress
The Location Keywords element contains keywords that characterize the study area/region where data was collected from. This allows users to narrow their searches to areas that suit their geographic interest. The Location Keywords are chosen from a controlled keyword hierarchy maintained in the Keyword Management System (KMS). A list of valid Location Keywords can be found here: https://gcmdservices.gsfc.nasa.gov/static/kms/locations/locations.csv?
Best Practices
Location keywords specify areas where data was collected. The keywords can be chosen to classify broad study areas/regions or very specific places. However, it is suggested that location keywords are as specific as possible to aid in data discovery. At bare minimum, a location keyword/category is required in the hierarchy. If a certain location keyword is not included in the KMS, a request to have it added can be made through the GCMD Keywords Community Forum.
Examples:
LocationKeywords/Category: "CONTINENT"
LocationKeywords/Topic: "NORTH AMERICA"
LocationKeywords/Subregion1: "UNITED STATES"
LocationKeywords/Subregion2: "ALABAMA"
LocationKeywords/Subregion3: "HUNTSVILLE"
LocationKeywords/DetailedLocation: "THE UNIVERSITY OF ALABAMA IN HUNTSVILLE"
LocationKeywords/Category: "CONTINENT"
LocationKeywords/Topic: "NORTH AMERICA"
LocationKeywords/Subregion1: "CANADA"
LocationKeywords/Subregion2: "ONTARIO"
LocationKeywords/Category: "GEOGRAPHIC REGION"
LocationKeywords/Topic: "TROPICS"
Element Specification
Location Keywords are required. An unlimited amount of Location Keywords may be provided (Cardinality: 1..*)
Model | Element | Type | Usable Valid Values | Constraints | Required? | Cardinality |
---|---|---|---|---|---|---|
UMM-C | LocationKeywords/Category | String | Science Category Keywords | KMS controlled | Yes | 1 |
UMM-C | LocationKeywords/Type | String | Science Topic Keywords | KMS controlled | No | 0..1 |
UMM-C | LocationKeywords/Subregion1 | String | Science Term Keywords | KMS controlled | No | 0..1 |
UMM-C | LocationKeywords/Subregion2 | String | Science Variable_Level_1 Keywords | KMS controlled | No | 0..1 |
UMM-C | LocationKeywords/Subregion3 | String | KMS controlled | No | 0..1 | |
UMM-C | ScienceKeywords/DetailedLocation | String | 1 - 80 characters (Uncontrolled/Free-Text) | 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).
Please see the expandable sections below for flowchart details.
Dialect Mappings
UMM Migration
None
Future Mappings
History
UMM Versioning
Version | Date | What Changed |
---|---|---|
1.10.0 | 5/2/2018 | No changes were made to Science Keywords in the transition from UMM Version 1.9.0 to 1.10.0 |
1.9.0 |
ARC Documentation
Version | Date | What Changed | Author |
---|---|---|---|
1.0 | 5/4/18 | Recommendations/priority matrix transferred from internal ARC documentation to wiki space | Jeanne' le Roux |