EXCEEDS logo
Exceeds
Ophélia Miralles

PROFILE

Ophélia Miralles

Over four months, contributed to the ecmwf/anemoi-core and ecmwf/anemoi-datasets repositories by building robust data ingestion, storage, and processing features using Python, Xarray, and Zarr. Developed flexible data loading mechanisms, including text-based node coordinate support and advanced Voronoi tessellation, while refactoring area weighting logic for maintainability and introducing a clear API deprecation path. Enhanced dataset durability by implementing persistent Zarr storage and added nearest-neighbor spatial interpolation to improve data completeness. Improved data indexing with PointCoordinate support and streamlined dataset save/load APIs, focusing on usability, metadata integrity, and test coverage to ensure reliable, production-grade scientific data workflows.

Overall Statistics

Feature vs Bugs

86%Features

Repository Contributions

13Total
Bugs
1
Commits
13
Features
6
Lines of code
725
Activity Months4

Work History

September 2025

1 Commits • 1 Features

Sep 1, 2025

Month 2025-09: Delivered Dataset Save/Load API Enhancement for ecmwf/anemoi-datasets, focusing on usability, data integrity, and test coverage. Refactored save_dataset to accept an opened anemoi-dataset directly, simplifying usage and resolving issues with metadata registration and ensemble dimension handling. Added ability to inspect created datasets and ensured the ensemble dimension is correctly represented. Introduced a regression test (test_save_dataset) to verify the save/open workflow and protect against future regressions. Overall impact includes smoother developer experience, improved reliability of dataset I/O, and clearer visibility into saved artifacts.

June 2025

1 Commits • 1 Features

Jun 1, 2025

Month 2025-06: Delivered foundational PointCoordinate support and enhanced indexing for ecmwf/anemoi-datasets, enabling reliable point-, station-, poi-, and cell-based data access. Integrated with CoordinateGuesser and adjusted Variable handling to exclude point coordinates from shape and name calculations. These changes improve data discoverability, correctness, and downstream analytics.

March 2025

2 Commits • 2 Features

Mar 1, 2025

March 2025 highlights for ecmwf/anemoi-datasets: Delivered two core features that enhance data durability and quality, enabling reliable long-term storage and improved data completion, while maintaining a concise bug-fix footprint.

December 2024

9 Commits • 2 Features

Dec 1, 2024

December 2024 (ecmwf/anemoi-core): Delivered core data ingestion and geometry enhancements, improved API stability, and raised code quality to support scalable, production-grade workflows. Key work enabled more flexible data sources, richer Voronoi computations, a clear API deprecation path, and better maintainability across the codebase.

Activity

Loading activity data...

Quality Metrics

Correctness88.4%
Maintainability86.0%
Architecture85.4%
Performance80.8%
AI Usage20.0%

Skills & Technologies

Programming Languages

CythonMarkdownPython

Technical Skills

Backend DevelopmentCode FormattingCode RefactoringData EngineeringData HandlingData InterpolationData ProcessingData StorageDataset ManagementDeprecation ManagementDocumentationFile I/OGeospatial Data ProcessingGraph ProcessingNumPy

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

ecmwf/anemoi-core

Dec 2024 Dec 2024
1 Month active

Languages Used

MarkdownPython

Technical Skills

Backend DevelopmentCode FormattingCode RefactoringData EngineeringData HandlingData Processing

ecmwf/anemoi-datasets

Mar 2025 Sep 2025
3 Months active

Languages Used

PythonCython

Technical Skills

Data HandlingData InterpolationData ProcessingData StorageFile I/ONumPy