New remote measurements with solar-reflected spectroscopy and thermal infrared imaging are revolutionizing Earth surface studies. Airborne precursors have laid the foundation for orbital investigations by space agencies worldwide, including missions like HiSUI (Japan), EnMAP (Germany), ECOSTRESS and EMIT (USA), PRISMA (Italy), DESIS (Germany), and anticipated investigations like SBG (USA), CHIME and LSTM (ESA), and TRISHNA (France/India).

This session will survey preparatory research, regional missions and concept studies. We will review ongoing efforts by recent imaging spectrometer and thermal IR investigations around the globe. We will highlight progress in translating local models to address Earth system questions at regional and global scales. We will also discuss planning and preparation for the next generation of orbital missions. Our themes include: coral reef surveys; volcano investigations; surface ecology and biodiversity studies; aquatic ecosystem and water quality monitoring; hydrology studies, including ice and snow characterization; land use and water use studies; and more.