Radiative Transfer for Earth Observation
Radiative Transfer Modelling and Syntethic Scene Generation
Essential Climate Variables retrieval from satellite data
Rayference is an innovative SME specialising in Earth Observation. Our focus lies in offering extensive technical and scientific expertise in both 1D and 3D radiative transfer modelling. Our flagship products, CISAR – an advanced inversion algorithm – and Eradiate – a cutting-edge open-source 3D Radiative Transfer Model – represent our commitment to excellence in this field. Find out more about our portfolio and our projects!
Our mission
We believe in the societal importance of understanding the Earth’s climate. This is why we work passionately to provide high quality service on radiative transfer theory applied to the field of environment and climate monitoring as well as supporting green energy, such as solar energy production.
Our team
We are a small team of young physicists and engineers passionate about scientific challenges and ethical principles, developing innovative solutions based on state-of-the-art research to support research and projects aiming at improving our understanding of climate. Do you want to join us? Check out our current job openings.
Latest News
Earlier this month, Rayference participated in the European Geosciences Union General Assembly (EGU 2026) in Vienna, where we presented recent work from the 3DREAMS and SATACI projects.
The conference was a great opportunity to exchange ideas with researchers and partners working on atmospheric remote sensing, aerosol retrieval, and aerosol–cloud interactions.
We just released Eradiate v1.1.0, available on GitHub! This is the result of 6 months of development, during which we reduced the technical debt induced by our dependency tree, but also implemented new features.
Last week, Rayference participated in the European Space Agency - ESA DigitalTwinEarth Components: Open Science Meeting 2026 in ESRIN - alongside the DTE S2GOS (https://dte-s2gos.rayference.eu/) mid-term review meeting, an important milestone to reflect on progress, alignment, and next steps within the project.
