Living Planet Symposium 2025


We’re pleased to invite you to a hands-on tutorial session on the CoMet (Community Metrology) Toolkit, taking place during ESA’s Living Planet Symposium 2025:
🗓 Sunday 22nd June
🕒 15:30 – 16:50
📍 Vienna, Living Planet Symposium (Room TBC)
The CoMet Toolkit (www.comet-toolkit.org) is an open-source suite of Python tools for handling and propagating uncertainties and error-correlation in measurement data. Originally designed for Earth Observation (EO) applications, CoMet’s flexible tools can be applied to any dataset involving uncertainties — making it highly relevant for anyone working with measurement functions and data analysis in Python.
🗸 In this tutorial, we will:
- Introduce the key concepts behind metrological uncertainty propagation
- Walk through the core components of the toolkit:
- punpy – for robust uncertainty propagation with support for error-correlation structures
- obsarray – for managing and storing uncertainty metadata in a self-describing, traceable format
- Work through a sensor calibration example using Google Colab-based Jupyter notebooks
We’ll also provide support to get you started using CoMet with your own example use-case if time permits — so feel free to bring a Python example from your work involving measurement uncertainty.
Whether you’re working in satellite Cal/Val, EO data processing, or any other measurement-driven field, this session will help you implement rigorous, traceable uncertainty handling in your processing chains.
🗸 No installation is required beforehand – all examples will run in Google Colab!
