Get ready to hack together!¶
Date: September 30, 2025 | Time: 09:00 am - 5:00 pm | Location: Room 401, BiDS25, Riga, Latvia
🎯 Hackathon Objectives¶
Transform how we access and process Copernicus Sentinel data using cloud-native technologies! This hackathon event focuses on:
- Exploring the EOPF Sentinel Zarr Samples Service and its diverse datasets;
- Developing new Jupyter notebooks that leverage the existing EOPF Sample datasets;
- Experimenting with Discrete Global Grid Systems (DGGS), particularly HEALPix, starting from EOPF Sample datasets;
Familiarize Yourself:¶
New to EOPF? No problem! Make sure to attend the EOPF Sample Service - Getting Started with Zarr (Sep 29, 01:30 PM - 05:00 PM, Room 103).
- Start with EOPF 101: https://
eopf -toolkit .github .io /eopf -101/ - Essential introduction to the EOPF ecosystem - Browse available datasets in the STAC catalog (11 different Sentinel collections!)
- Review example notebooks: EOPF Sample Notebooks
- Check out the GitHub repository: https://
github .com /EOPF -Sample -Service /eopf -sample -notebooks
🚀 Pre-Hackathon Setup (Complete Before 09:00)¶
Essential Registration Steps:¶
- Register for Copernicus Data Space Ecosystem: https://
dataspace .copernicus .eu - Access JupyterHub Environment: https://
jupyterhub .user .eopf .eodc .eu /hub - Explore the STAC Browser: https://
stac .browser .user .eopf .eodc .eu
📅 Detailed Agenda¶
🌅 Morning Session (09:00 - 12:30)¶
09:00 - 09:30: Welcome & Team Formation¶
- Welcome & Introductions (15 min)
- Quick Overview: EOPF ecosystem and Zarr Samples Service capabilities
- New to EOPF? Quick reference to EOPF 101 for foundational concepts
- Team Formation: Based on interests and proposed projects (see Project Ideas below)
09:30 - 10:30: Data Exploration Sprint¶
- Hands-on exploration of the STAC browser
- Discover available datasets:
- Sentinel-1 (GRD, SLC, OCN)
- Sentinel-2 (Level-1C, Level-2A)
- Sentinel-3 OLCI & SLSTR products
- Identify data for your project ideas and agree on the use case you would like to work on.
10:30 - 10:45: ☕ Coffee Break¶
10:45 - 12:30: Project Kickoff¶
- Finalize team projects and register them as GitHub issues
- Download the official notebook template: template.ipynb
- Review contribution guidelines (see Contribution Guidelines below)
- Begin coding: Start with existing examples and adapt to your use case
- Technical support available from EOPF team
🍽️ 12:30 - 13:30: Lunch Break¶
🌞 Afternoon Session (13:30 - 17:00)¶
13:30 - 15:30: Deep Development¶
- Intensive coding session
- Experiment with:
- Multi-source data fusion
- DGGS/HEALPix implementations
- Advanced chunking strategies
- Zarr optimization techniques
- Collaborative problem-solving
15:30 - 15:45: ☕ Coffee Break¶
15:45 - 16:30: Project Presentations¶
- 5-minute team presentations of developed notebooks
- Demo your solutions and key findings
- Community feedback and discussion
16:30 - 17:00: Wrap-up & Next Steps¶
- Reflection on achievements
- Discussion of future development
- Community notebook competition introduction
- Closing remarks
18:00 - 18:30: Celebration & Awards¶
💡 Project Ideas & Team Formation¶
How to Participate:¶
- Browse Existing Challenges: Check our GitHub Issues for predefined problems
- Propose New Ideas: Create a new issue describing your project concept
- Join a Team: Comment on issues you’re interested in contributing to
🎯 Suggested Project Themes:¶
Multi-Mission Data Fusion¶
- Combine Sentinel-1 SAR with Sentinel-2 optical data for enhanced land cover mapping
- Integrate Sentinel-3 ocean products with meteorological data
DGGS Applications¶
- Implement HEALPix gridding for global climate monitoring
- Develop DGGS-based data aggregation workflows
Performance Optimization¶
- Optimize chunking strategies for different use cases
- Benchmark Zarr vs. traditional formats
Novel Applications¶
- Time-series analysis across multiple Sentinel missions
- Machine learning pipelines using cloud-native data
- Interactive visualization dashboards
Metadata & Standards¶
- Explore Parquet for metadata storage
- Contribute to GeoZarr and CF-conventions discussions
🤝 Team Formation Process:¶
Before the hackathon:
- Create or comment on GitHub issues with your interests
- Use issue labels:
hackathon-2025,team-wanted,dggs,multi-mission, etc.
During the hackathon:
- Teams of 2-4 people work best
- Mix of skills encouraged (data scientists, developers, domain experts)
- One designated team lead for coordination
🛠️ Technical Resources¶
Available Tools & Libraries:¶
- Data Access / Processing: STAC, xarray, Dask, EOPF toolkit (e.g. xarray-eopf, xcube-eopf, EOPF Julia Reader)
- Visualization: Matplotlib, Plotly, Folium
- Languages: Python, Julia
- Grid Systems: HEALPix, DGGS implementations
- Templates: Official Jupyter notebook template (required for all submissions)
Getting Help:¶
- EOPF team members available throughout the day
- New to EOPF? Start with EOPF 101 for core concepts
- Slack channel: #eopf-hackathon (link provided on-site)
- Documentation: EOPF Sample Notebooks
Data Available:¶
- Real Copernicus Sentinel data in Zarr format
- Global coverage with recent acquisitions
- All processing levels from L1 to L2
- Optimized chunking for cloud processing
📋 Project Registration¶
Create Your Project Issue:¶
Use this template when creating a new GitHub issue:
**Project Title**: [Your innovative project name]
**Team Members**: [@github-username1, @github-username2, ...]
**Objective**: [Brief description of what you want to achieve]
**Data Sources**: [Which Sentinel missions/products you'll use]
**Technical Approach**: [Tools, methods, or algorithms you plan to explore]
**Expected Outcome**: [Jupyter notebook, visualization, analysis results, etc.]
**Skills Needed**: [What expertise would be helpful for your team]
**Labels**: hackathon-2025, [add relevant tags: dggs, multi-mission, performance, etc.]Join Existing Projects:¶
Comment on existing issues with:
- Your background and skills
- How you’d like to contribute
- Your GitHub username for team coordination
🏆 What Success Looks Like¶
By the end of the day, each team should have:
- A working Jupyter notebook following the provided template
- Template compliance with all required metadata and documentation sections
- Clear documentation of your approach and findings
- Identified next steps for further development
- Contributions to the EOPF community knowledge base
Bonus Achievements:¶
- Novel use of DGGS/HEALPix for EO applications
- Performance improvements or optimization insights
- Cross-mission data fusion techniques
- Reproducible workflows others can build upon
🔄 After the Hackathon¶
Stay Connected:¶
Join ongoing discussions and join the EOPF Community Support Platform on Discourse
Ready to hack? Let’s build the future of cloud-native Earth Observation together! 🌍🛰️
Questions? Contact the organizing team or join our Slack workspace for real-time support.