Hyperspectral reflectance spectra of floating matters derived from Hyperspectral Imager for the Coastal Ocean (HICO) observations

Abstract. Using data collected by the Hyperspectral Imager for Coastal Ocean (HICO) on International Space Station between 2010–2014, hyperspectral reflectance spectra of various floating matters in global oceans and lakes are derived spectral range 400–800 nm. Specifically, entire HICO archive 9411 scenes is first visually inspected to identify suspicious image slicks. Then, a nearest-neighbor atmospheric correction used derive surface slick pixels. Finally, unmixing scheme matters. Analysis shapes these (macroalgae, microalgae, organic particles, whitecaps) through use angle mapper (SAM) index indicates that they can mostly be distinguished from each other without need ancillary information. Such consistent 90 m resolution observations expected provide endmembers differentiate quantify existing multi-band satellite sensors future missions such as NASA's Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission; Geosynchronous Littoral Imaging Monitoring Radiometer (GLIMR) Surface Biology Geology (SBG) mission. All available at https://doi.org/10.21232/74LvC3Kr (Hu, 2021b).