5836 20220920105415.0 10.3390/s22155841 DOI SCART-2022-0082 Schifano, Luca Optical Design of a Novel Wide-Field-of-View Space-Based Spectrometer for Climate Monitoring 2022 We report on a near-infrared imaging spectrometer for sensing the three most prominent greenhouse gases in the atmosphere (water vapor, carbon dioxide and methane). The optical design of the spectrometer involves freeform optics, which enables achieving exceptional performance and allows progressing well beyond the state-of-the-art in terms of compactness, field-of-view, and spatial resolution. The spectrometer is intended to be launched on a small satellite orbiting at 700 km and observing the Earth with a wide field-of-view of 120° and a spatial resolution of 2.6 km at nadir. The satellite will ultimately allow for improved climate change monitoring. NO climate change greenhouse gases; space instrumentation spectrometer wide field of view telescope freeform optics Berghmans, Francis Dewitte, Steven Smeesters, Lien Sensors 22 2022 15 elodie.brahy@ksb-orb.be https://www.mdpi.com/1424-8220/22/15/5841 published in REFERD