
Marc White developed and maintained the ACCESS-NRI/access-nri-intake-catalog, focusing on robust data cataloging and workflow automation for climate modeling. He engineered features such as stable file identification using coordinate-based IDs, expanded MOM6 model support, and integrated Intake-driven data loading across related repositories like COSIMA/cosima-recipes. His work emphasized reliability through improved error handling, metadata validation, and test coverage, while modernizing code with Python’s pathlib and argparse. By refactoring build systems, enhancing documentation, and standardizing data access patterns, Marc enabled reproducible, maintainable workflows. His contributions leveraged Python, YAML, and Jupyter Notebooks to streamline onboarding and ensure scalable, accurate data management.

Monthly summary for 2025-08: Delivered a stable file identification mechanism for the ACCESS-NRI intake catalog by shifting from filename-derived identifiers to coordinate-based file IDs driven by dataset shape information. This refactor reduces brittleness, improves data cataloging reliability, and enhances downstream data access. The work establishes a robust indexing foundation for future migrations and analytics.
Monthly summary for 2025-08: Delivered a stable file identification mechanism for the ACCESS-NRI intake catalog by shifting from filename-derived identifiers to coordinate-based file IDs driven by dataset shape information. This refactor reduces brittleness, improves data cataloging reliability, and enhances downstream data access. The work establishes a robust indexing foundation for future migrations and analytics.
July 2025: Delivered Intake-based data loading for the Particle_tracking workflow in COSIMA/cosima-recipes. Converted the Particle_tracking_with_Parcels notebook to use Intake and transitioned model output loading to Intake catalogs. Updated ARE usage guidance and testing documentation to reflect standardized data access. No major bugs reported this month; efforts focused on data access standardization, reproducibility, and maintainability. Commits: 3ef13c104f9463012cef2274e9f39194c42d970e (Convert Particle_tracking_with_Parcels notebook to Intake (#534)); e0800c43aa76654d821ec0fa7d246c118030af79 (Minor tweaks (#539)).
July 2025: Delivered Intake-based data loading for the Particle_tracking workflow in COSIMA/cosima-recipes. Converted the Particle_tracking_with_Parcels notebook to use Intake and transitioned model output loading to Intake catalogs. Updated ARE usage guidance and testing documentation to reflect standardized data access. No major bugs reported this month; efforts focused on data access standardization, reproducibility, and maintainability. Commits: 3ef13c104f9463012cef2274e9f39194c42d970e (Convert Particle_tracking_with_Parcels notebook to Intake (#534)); e0800c43aa76654d821ec0fa7d246c118030af79 (Minor tweaks (#539)).
June 2025 performance summary focusing on two main repositories and tangible business value. The month delivered two major features expanding data coverage and improving data access for MOM6 model outputs, with explicit metadata and dependencies updated to streamline workflows. No major bugs fixed during this period; minor configuration adjustments were addressed to maintain stability.
June 2025 performance summary focusing on two main repositories and tangible business value. The month delivered two major features expanding data coverage and improving data access for MOM6 model outputs, with explicit metadata and dependencies updated to streamline workflows. No major bugs fixed during this period; minor configuration adjustments were addressed to maintain stability.
May 2025 performance summary for ACCESS-NRI/access-nri-intake-catalog focusing on business value and technical achievements. Delivered four core items across bug fixes and feature enhancements that improve data path reliability, build robustness, and frequency handling. The changes lay groundwork for versioned catalogs and more scalable data ingestion.
May 2025 performance summary for ACCESS-NRI/access-nri-intake-catalog focusing on business value and technical achievements. Delivered four core items across bug fixes and feature enhancements that improve data path reliability, build robustness, and frequency handling. The changes lay groundwork for versioned catalogs and more scalable data ingestion.
March 2025 monthly summary for ACCESS-NRI intake catalog: Delivered critical build-time access validation, enhanced CLI reliability, and improved documentation, driving security, reliability, and user productivity. These changes reduce misconfigurations, accelerate onboarding, and strengthen overall system robustness.
March 2025 monthly summary for ACCESS-NRI intake catalog: Delivered critical build-time access validation, enhanced CLI reliability, and improved documentation, driving security, reliability, and user productivity. These changes reduce misconfigurations, accelerate onboarding, and strengthen overall system robustness.
February 2025 monthly summary for ACCESS-NRI/access-nri-intake-catalog focused on documenting and hardening the data catalog. Key features delivered include documentation improvements (restored metadata.yaml template in docs and upgraded landing page from Sphinx Panes to Sphinx Design with environment config updates) and data catalog enhancements (expanded COSIMA experiment configurations in access-om2.yaml; enabled include_patterns/exclude_patterns for data catalog builders via YAML; added tests to validate correct application). Major bugs fixed include reinstating the missing metadata.yaml template in the documentation and improving metadata validation error reporting for the data catalog. Overall impact: improved documentation accuracy and onboarding, more reliable and configurable data catalog operations, and stronger test coverage reducing risk in future changes. Technologies/skills demonstrated: Sphinx Design, YAML-driven configuration, environment/config management, data catalog architecture, COSIMA experiments, testing.
February 2025 monthly summary for ACCESS-NRI/access-nri-intake-catalog focused on documenting and hardening the data catalog. Key features delivered include documentation improvements (restored metadata.yaml template in docs and upgraded landing page from Sphinx Panes to Sphinx Design with environment config updates) and data catalog enhancements (expanded COSIMA experiment configurations in access-om2.yaml; enabled include_patterns/exclude_patterns for data catalog builders via YAML; added tests to validate correct application). Major bugs fixed include reinstating the missing metadata.yaml template in the documentation and improving metadata validation error reporting for the data catalog. Overall impact: improved documentation accuracy and onboarding, more reliable and configurable data catalog operations, and stronger test coverage reducing risk in future changes. Technologies/skills demonstrated: Sphinx Design, YAML-driven configuration, environment/config management, data catalog architecture, COSIMA experiments, testing.
January 2025: Delivered core platform improvements for ACCESS-NRI/access-nri-intake-catalog focusing on path handling modernization, time parsing refactor, and robust build fault isolation. These changes improve reliability, readability, and maintainability, with tests updated to reflect new implementations and better error handling to prevent single-component failures from impacting the entire build.
January 2025: Delivered core platform improvements for ACCESS-NRI/access-nri-intake-catalog focusing on path handling modernization, time parsing refactor, and robust build fault isolation. These changes improve reliability, readability, and maintainability, with tests updated to reflect new implementations and better error handling to prevent single-component failures from impacting the entire build.
December 2024: Delivered pivotal improvements to the ACCESS-NRI intake catalog, focusing on metadata quality, tooling, and release readiness. Implemented metadata quality enhancements across CORDEX, ERA5, and Narclim datasets; standardized frequency values; improved catalog version path handling; and added a Jupyter notebook for catalog build sanity checks. Strengthened build/test infrastructure with pytest-based modernization and data-source build script improvements. Updated datastore usage and release process documentation, and removed flaky tempfile-based tempdirs in favor of pytest tmp_path to improve test isolation. These efforts improved data accuracy, reliability, and speed of releases, enabling better downstream decision-making and onboarding for new contributors.
December 2024: Delivered pivotal improvements to the ACCESS-NRI intake catalog, focusing on metadata quality, tooling, and release readiness. Implemented metadata quality enhancements across CORDEX, ERA5, and Narclim datasets; standardized frequency values; improved catalog version path handling; and added a Jupyter notebook for catalog build sanity checks. Strengthened build/test infrastructure with pytest-based modernization and data-source build script improvements. Updated datastore usage and release process documentation, and removed flaky tempfile-based tempdirs in favor of pytest tmp_path to improve test isolation. These efforts improved data accuracy, reliability, and speed of releases, enabling better downstream decision-making and onboarding for new contributors.
Month: November 2024 — Focused on reliability, model support, and documentation quality for ACCESS-NRI intake catalog. Delivered a targeted bug fix with tests, expanded MOM6 model support (OM4 0.25jra-ryf), and refreshed documentation/notebooks to improve clarity and maintainability. These changes reduce potential catalog search failures, broaden modeling capabilities, and streamline ongoing developer onboarding.
Month: November 2024 — Focused on reliability, model support, and documentation quality for ACCESS-NRI intake catalog. Delivered a targeted bug fix with tests, expanded MOM6 model support (OM4 0.25jra-ryf), and refreshed documentation/notebooks to improve clarity and maintainability. These changes reduce potential catalog search failures, broaden modeling capabilities, and streamline ongoing developer onboarding.
Overview of all repositories you've contributed to across your timeline