fig1
Figure 1. An annotated photograph of NASA’s PACE satellite mission payload showing the three primary instruments: OCI, HARP2, and SPEXone. These instruments collectively provide hyperspectral and multi-angle polarimetric observations critical for monitoring ocean ecosystems, aerosols, clouds, and potentially plastic pollution in aquatic environments. (Image source: NASA PACE)[51]. NASA: National Aeronautics and Space Administration; PACE: Plankton, Aerosol, Cloud, Ocean Ecosystem; OCI: Ocean Color Instrument; HARP2: Hyper-Angular Rainbow Polarimeter-2; SPEXone: Spectro-Polarimeter for Planetary Exploration.
