Marine and coastal waters provide important ecosystem services and socio-economic benefits, and are home to a diverse range of flora and fauna. These systems are increasingly stressed due to climatic and anthropogenic pressures, affecting biodiversity and productivity, and the resilience of services derived from them. Remote sensing from ground-based, airborne, and satellite platforms offers a unique perspective on the world’s water bodies, with the ability to assess a range of indicators and variables at improved temporal resolutions, and at range of scales that extend from inland waters to the open ocean.

Active and passive sensors, with improved radiometric performance and spatial, spectral, and temporal resolutions help facilitate better understanding of physical and/or biogeochemical processes. Recent advances in remote sensing include instrumentation, algorithm development, synergies, and applications. With a focus on wider societal benefits, we welcome submissions illustrating innovative processing or applications from remotely sensed data, including data from imaging spectrometers (e.g. PACE, PRISMA, EnMap, SBG, CHIME) and the European Space Agency Sentinels. Themes include measuring and monitoring of water quality, food security, biodiversity and productivity, and physical properties (e.g. wind, temperature, currents, sea state). Topics including atmospheric correction, algorithm design, object detection, bio-optical modelling of optically complex waters, and generation of tools and data products towards achieving UN Sustainable Development Goals are encouraged.