Pilot Project for HDF5 Metadata Structures for SWOT
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This document discusses a pilot project to incorporate ISO 19115-2 metadata attributes at the granule level for the NASA SWOT mission. The metadata will be stored in HDF5 groups and generated in two ways - via XML serialization or XML style sheet conversions. The project aims to capture essential metadata attributes from the SWOT information architecture and ISO metadata model, and generate an HDF5 structure specification and example metadata snippets.
Pilot Project for HDF5 Metadata Structures for SWOT
- 1. Pilot Project for HDF5 Metadata Structures for SWOT Ed Armstrong and Steve Hughes NASA Jet Propulsion Laboratory 2016 Summer ESIP Meeting July 19, 2016 National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California © 2016 California Institute of Technology. Government sponsorship acknowledged.
- 2. 2016 ESIP Summer Meeting First NASA mission to incorporate granule level ISO 19115-2 metadata attributes HDF5 Metadata Groups Produced via two methods Level 2: XML serialization (XML bindings in software) Level 3 and 4: XML style sheets conversions Essential Metadata Attributes (Required and Recommended) Both Series (Collection) and Dataset (Granule) level Examples: Space/Time. Production and distribution attribution. Processing lineage. Versioning history. Abstract. SMAP Metadata Review
- 3. 2016 ESIP Summer Meeting HDF5 structure and metadata layout and the Essential Attributes in the ISO Metadata Model Plan From the SWOT Information Archtecture (IA) and Use Cases, start capturing the Essential Attributes in the ISO Metadata Model into a knowledge representation framework. Stage the Essential Attribute information in the framework for design analysis, write specification documents for users, and write metadata snippets for the HDF5 structure. This work will focus on identifying the thin “top-level ontology” in the SWOT IA. Extraction of the metadata to the framework. Generate a specification document (e.g. Data Dictionary) for the metadata. Generate example metadata snippets appropriate for the HDF5 structure SWOT Metadata Pilot Project
- 4. 2016 ESIP Summer Meeting Exercise HDF Product Designer Create HDF5/JSON representations of metadata contents Import into Product Designer Export snippets to ISO 19115 Product Designer leverages the THREDDS ISO service Review and iterate TBD: Writing ISO metadata to HDF5 Timeline: Next two months HDF5 Metadata snippets