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IOOS Compliance Checker: Ensuring Data Quality and Standards Compliance

The IOOS Compliance Checker is a Python-based tool for data providers to validate the completeness and adherence to community standards of netCDF or CDL files. It offers Text, HTML, and JSON output options for reports and a web version is available for easy access. The tool, with over 26 releases, helps data providers submit high-quality data according to metadata standards developed by the IOOS Program Office. Recent milestones include improved scoring output, bug fixes, and performance enhancements. Future updates will focus on CF 1.7, IOOS Profile Metadata 1.2, and more plugin updates. For inquiries, contact Bob Fratantonio at robert.fratantonio@rpsgroup.com.

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IOOS Compliance Checker: Ensuring Data Quality and Standards Compliance

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  1. IOOS Compliance Checker Bob Fratantonio, RPS April 30, 2019

  2. Outline • Background • Metadata Standards • Use Cases • Recent Milestones • Upcoming Milestones Outline

  3. Background • A python based tool for data providers to check for completeness and community standard compliance of local or remote netCDF or CDL files • First commit in September 2013 • The python module can be used as a command-line tool or as a library that can be integrated into other software. • Install with conda or pip • Text, HTML, and JSON output options for reports. • Compliance Checker Web • A web version is available at https://compliance.ioos.us Background

  4. Compliance Checker Web Select a Metadata Standard and Version Upload a local netCDF or CDL file OR… Provide a remote URL Download a text version of the report API • JSON • https://compliance.ioos.us/api/run?report_format=json&test=acdd&url=http://sos.maracoos.org/stable/dodsC/hrecos/stationHRMARPH-agg.ncml • HTML • https://compliance.ioos.us/api/run?report_format=html&test=acdd&url=http://sos.maracoos.org/stable/dodsC/hrecos/stationHRMARPH-agg.ncml

  5. Compliance Checker Web Technologies • Python - Flask web framework • Backbone.js • Containerized with Docker • Hosted on AWS EC2

  6. 26 Releases 1,184 Commits 28 Contributors 38Stars 43 Forks 1 Command Line Interface (CLI) 2 Available on package managers 1 Plugins 5 Website 7metadata standards

  7. IOOS Program Office has developed metadata for distribution of the IOOS data using THREDDS or ERDDAP servers Adding to CF and ACDD, these best practices capture NCEI's experience in providing long-term preservation, scientific quality control, product development, and multiple data re-use beyond its original intent Attribute Conventions for Data Discovery These checks have been designed to help data providers submit the highest quality data to the Glider DAC. Checks for storing staggered grid model data Climate and Forecast conventions for NetCDF Checks for storing unstructured (or flexible mesh) model data 7 Metadata Standards

  8. Use Cases (Who’s Using It?) NASA podaac https://podaac-tools.jpl.nasa.gov/mcc/ ACDD CF GDS2 (Group for High Resolution Sea Surface Temperature Data Specification, Version 2) CEDA (Centre for Environmental Data Analysis) UKCP18 (UK Climate Projections) Large Climate Datasets at UK Met Office https://github.com/ukcp-data/cc-plugin-ukcp18 Glider DAC Checking files on submission IOOS EDS Gold Standard THREDDS COMT Data Upload Tool IOOS Catalog Anyone else?

  9. Recent Milestones • Complete overhaul of the scoring output results • Performance enhancements for files with large amounts of variables and data • Reformatted ACDD output to include more informative, less repetitive error messages • Bug Fixes Major Release v4.0.0 - April 13, 2018 Minor Releases v4.0.1 – May 18, 2018 v4.1.0 – Aug 29, 2018 v4.1.1 – Aug 30, 2018 v4.2.0 – Feb 6, 2018 v4.2.1 – Feb 18, 2019 v4.2.2 – Feb 27, 2019

  10. What’s Next? • CF 1.7 • IOOS Profile Metadata 1.2 • GliderDAC Plugin Updates • Create GulfHub Plugin

  11. Questions? Bob Fratantonio RPS robert.fratantonio@rpsgroup.com

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