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
The SATRISE journey started back in November 2025!
SATRISE is an European Space Agency - ESA-funded innovation project that brings together advanced Earth Observation satellite data and state-of-the-art 3D simulation to redefine how solar irradiance is estimated for photovoltaic (PV) systems. By combining Rayference’s CISAR algorithm with LuciSun’s GPU-based 3D modelling tool, LuSim, SATRISE aims to deliver unprecedented accuracy in solar resource assessment for complex PV applications such as bifacial PV, agrivoltaics, urban PV, and building-integrated photovoltaics (BIPV).
