Welcome to NCZarr Viewer’s documentation!

The NCZarr Viewer is a powerful web application for exploring and visualizing geospatial NetCDF and Zarr datasets. Built with Dash and optimized for both local development and cloud deployment.

Key Features

• Multi-Format Support: NetCDF, Zarr files

• Cloud Storage Access: Direct S3, Minio, and cloud storage access

• Marine Data Integration: Copernicus Marine Service (CMEMS) support

• Interactive Visualization: Dynamic plotting with Plotly and Matplotlib

• Smart Data Exploration: Variable browsing, dimension filtering, and statistics

• Responsive Design: Works on desktop, tablet, and mobile devices

• Docker Ready: Containerized for easy deployment

Quick Start

# Clone and setup
git clone git@github.com:EDITO-Infra/nczarr-viewer.git
cd nczarr-viewer

# Install dependencies with uv
uv sync

# Run the viewer
python run.py

The viewer will be available at http://localhost:8050

Documentation Contents

Contents:

• Usage
  • Quick Start
  • Local Development
  • Docker Deployment
  • S3/Cloud Storage Access
  • CMEMS Integration
  • Configuration
  • Troubleshooting
• Dockerfile
• API Reference
  • Core Modules
  • Data Loading and Processing
  • Variable and Dimension Handling
  • Main Application Class

Additional Resources

• Source Code: https://github.com/EDITO-Infra/nczarr-viewer

• Docker Hub: samfooks/nczarr-viewer

• Presentation HTML: DTOBioflow September 2 2025 - NCZarr Viewer Presentation

Indices and tables

• Index

• Module Index

• Search Page