WATERHYPERNET: Automated in situ measurements of hyperspectral water reflectance for satellite validation ... and more

RUDDICK, K.; BECK, M.; BIALEK, A.; BRANDO, V.; CATTRIJSSE, A.; CONCHA, J.; CORIZZI, A.; DE VIS, P.; DOGLIOTTI, A.I.; DOXARAN, D.; ET AL.

Simposio; Oceans from Space V; 2022

Spaceborneoptical remote sensing is routinely used for monitoring of water quality incoastal and inland waters via parameters such as phytoplankton pigments(chlorophyll a, phycocyanin, etc.) and suspended particulate matter. Thequality of end-user products depends strongly on intermediate processing,particularly atmospheric correction and associated sunglint and adjacencycorrections. In situ measurements of water reflectance are needed to validatethe satellite data products. Building on experience gained from themultispectral AERONET-OC network, the  WATERHYPERNETis being set upas aninternational network of sites running automated systems of pointablehyperspectral radiometers.An overview is presented of the WATERHYPERNETnetwork, including a summary of hardware, data acquisition and processing andvalidation sites. Examples are provided of satellite validation applications.While satellite validation has been the primary motivation for development ofthis network, the availability of high frequency and long-term hyperspectralreflectance data is also stimulating spin-off applications, such as phytoplanktonmonitoring.