Beck, M.

Cattrijsse, A.

Dogliotti, A.

Doxaran, D.

Goyens, C.

Ruddick, K.

Van der Zande, D.

Vansteenwegen, D.

Vendt, R.

English

Open Marine Archive

 First Results From WATERHYPERNET - a Network of Hyperspectral Radiometers for Multi-satellite 
Water Reflectance Validation adapted to Sentinel-2ABCD 
A network of hyperspectral radiometers is being developed for radiometric validation of satellite 
missions. This network follows closely the AERONET-OC federation concept [Zibordi et al, 2009] but 
uses the TRIOS/RAMSES hyperspectral radiometer and a more extensive multi-look pointing 
scenario. The instrument system consists of one radiance and one irradiance sensor on a pointing 
robot, controlled by a microprocessor and supplemented with GPS, inclinometer and video camera 
data feeds. The measurement protocol is based on the abovewater method of [Mobley, 1999 and 
2015], but includes additional scenarios for different viewing zenith and azimuth configurations. The 
system is being deployed initially in Belgian coastal and inland waters, then at sites in Argentina and 
France before full international expansion. The network will provide water reflectance data for the 
radiometric validation of all visible and near infrared bands of all optical missions, including Sentinel-
2A&B, Sentinel-3A&B, PROBA-V, MODIS-AQUA&TERRA, VIIRS, Landsat-8, Pléiades, CHRIS-PROBA, 
MSG-SEVIRI, PlanetDove … PRISMA, ENMAP, PACE, MTG and ... any future optical missions, including 
nanosatellites. This presentation will provide results from prototype testing on Aqua Alta 
Oceanographic Tower in July 2018, including a comparison with a conventional manually-operated 
TRIOS/RAMSES system and the automated AERONET-OC data from this site. The specific application 
to validation of the wide and asymmetric bands of Sentinel-2A and -2B will be described. Research in 
progress on the abovewater measurement protocol and the operational plan for characterisation of 
all radiometers will also be outlined. 
Ruddick K 1 , Vansteenwegen D 2 , Beck M 1 , Cattrijsse A 2 , Dogliotti A 3 , Doxaran D 4 , Goyens C 1 
, Van der Zande D 1 , Vendt R 5 
1 RBINS (Royal Belgian Institute of Natural Sciences), Brussels, Belgium 
2 Flanders Marine Institute (VLIZ), Oostende, Belgium 
3 Instituto de Astronomía y Física del Espacio, Consejo Nacional de Investigaciones Científicas y 
Técnicas (IAFE, CONICET/UBA), Buenos Aires, Argentina 
4 Laboratoire Océanographique de Villefranche (LOV), Sorbonne Université, Villefranche-sur-mer, 
France 
5 Tartu Observatory Faculty of Science and Technology, University of Tartu, Tõravere Tartu county, 
Estonia 


First results from WATERHYPERNET - a Network of Hyperspectral Radiometers for Multi-satellite Water Reflectance Validation adapted to Sentinel-2ABCD

http://www.vliz.be/imisdocs/publications/322259.pdf

First results from WATERHYPERNET - a Network of Hyperspectral Radiometers for Multi-satellite Water Reflectance Validation adapted to Sentinel-2ABCD

Abstract

Similar works

Full text

Available Versions

Open Marine Archive