Deep Data Working Session: Interoperable Access to Data at the Parameter Level
In this session, application developers and data catalog providers will work together towards developing interoperability for data at the parameter/measurement/variable level. We will look at existing frameworks in an attempt to reuse or rework existing schemes in order to support multiple applications
- CSDMS Standard Names
- CF Standard Names
- RDA Datatypes Registry
- EOSDIS Unified Metadata Model for Parameters (UMM-P)
- OGC Web Coverage Service
The key questions to be addressed are:
- Is it possible to support Measurement-Variable-Parameter information for all the key applications in a single framework?
- Alternatively, should we try to link or map amongst several frameworks?
- In either case, what process should be used to maintain the framework contents or mappings between them?
1. ***some audio issues during first 20 minutes***
2. Simon Catrell, - “Unified Metadata Model – Variables”
a. UML Data Model
ii. Measurement definition: name, value, unit
iii. UMM search is supported
b. Q1: link to persistent record of data description
c. Use Cases
i. Constrain to lists of possible measurements
ii. List of collections, ranked by relevance to search word.
iii. Supports cross-site subsetting
iv. Fetch data subsets
3. Chris Lynnes, - “What’s IN a variable?”
a. What physical quantity is being measured or simulated?
b. Competing schemes for measurement/essence (ex. CF, GCMD)
i. Essential Climate Variables is an additional schema, not listed on slide.
c. What do we need to name variables?
d. GCMD keywords are changed frequently.