A global compilation of in situ aquatic high spectral resolution inherent and apparent optical property data for remote sensing applications

摘要

Light emerging from natural water bodies and measured byradiometers contains information about the local type and concentrations ofphytoplankton, non-algal particles and colored dissolved organic matter inthe underlying waters. An increase in spectral resolution in forthcomingsatellite and airborne remote sensing missions is expected to lead to new orimproved capabilities for characterizing aquatic ecosystems. Such upcomingmissions include NASA's Plankton, Aerosol, Cloud, ocean Ecosystem (PACE)mission; the NASA Surface Biology and Geology designated observable mission; and NASAAirborne Visible/Infrared Imaging Spectrometer – Next Generation(AVIRIS-NG) airborne missions. In anticipation of these missions, we presentan organized dataset of geographically diverse, quality-controlled, highspectral resolution inherent and apparent optical property (IOP–AOP) aquaticdata. The data are intended to be of use to increase our understanding ofaquatic optical properties, to develop aquatic remote sensing data productalgorithms, and to perform calibration and validation activities forforthcoming aquatic-focused imaging spectrometry missions. The dataset iscomprised of contributions from several investigators and investigatingteams collected over a range of geographic areas and water types, includinginland waters, estuaries, and oceans. Specific in situ measurements include remote-sensing reflectance, irradiance reflectance, and coefficients describing particulate absorption, particulate attenuation, non-algal particulate absorption, colored dissolved organic matter absorption, phytoplankton absorption, total absorption, total attenuation, particulate backscattering, and total backscattering. The dataset can bedownloaded from https://doi.org/10.1594/PANGAEA.902230 (Caseyet al., 2019).