0000000000082555

AUTHOR

Ramón Peña

showing 3 related works from this author

Calibration and Validation of Algorithms for the Estimation of Chlorophyll-A in Inland Waters with Sentinel-2

2018

The Ocean Color 2 (OC2), Ocean Color 3 (OC3) and Dall'Olmo three-band (TBDO) algorithms used for the estimation of the chlorophyll-a concentration [Chl-a] have been calibrated and validated for Sentinel-2 spectral bands. Measurements of in situ chlorophyll-a, radiometry and simulations with HydroLight have been used for this purpose within the Ecological Status of AQuatic Systems Satellites (ESAQS) Project to estimate water quality in aquatic systems in Spain. The results show that Sentinel-2 spectral bands are suitable for studying the chlorophyll-a concentration in inland waters. The TBDO algorithm have been applied to Sentinel-2 images and satisfactory results have been obtained in Albuf…

EstimationChlorophyll aCalibration and validation02 engineering and technologySpectral bands021001 nanoscience & nanotechnology01 natural sciences010309 opticschemistry.chemical_compoundchemistryOcean color0103 physical sciencesCalibrationEnvironmental scienceRadiometryWater quality0210 nano-technologyAlgorithmIGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
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Turbidez y profundidad de disco de Secchi con Sentinel-2 en embalses con diferente estado trófico en la Comunidad Valenciana

2019

[ES] En los estudios de calidad de aguas por teledetección, uno de los principales indicadores es la transparencia o turbidez del agua. La transparencia puede ser medida in situ mediante la profundidad del disco de Secchi (SD), y la turbidez con un turbidímetro. En las últimas décadas se han utilizado diferentes relaciones entre bandas de diferentes sensores obtenidas por teledetección para la estimación de estos parámetros. En este trabajo, a partir de datos de campo obtenidos a lo largo de 2017 y 2018 en embalses de la cuenca del Júcar con gran variedad de estados tróficos, se han calibrado diferentes índices y bandas para poder estimar la transparencia a partir de imágenes Sentinel-2 (S2…

Turbidez010504 meteorology & atmospheric sciencesField dataGeography Planning and Development0211 other engineering and technologiesSoil science02 engineering and technology01 natural sciencesTurbidityApproximation errorJúcar basin reservoirsDissolved organic carbonEarth and Planetary Sciences (miscellaneous)Turbidity021101 geological & geomatics engineering0105 earth and related environmental sciencesSuspended solidsAtmospheric correctionSecchi diskSpectral bandsEutrophicationEmbalses cuenca JúcarDisco de SecchiEnvironmental scienceWater qualitySentinel-2Eutrofización
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Modelo empírico para la determinación de clorofila-a en aguas continentales a partir de los futuros Sentinel-2 y 3. Validación con imágenes HICO

2014

[EN] Chlorophyll-a concentration is one of the main indicators of inland waters quality. Using CHRIS/PROBA images and in situ data obtained in four lakes in Colombia and Spain, we obtained empirical models for the estimation of chlorophyll-a concentration, which can be directly applied to future images of MSI Sentinel-2 and OLCI Sentinel-3 sensors. The models, based on spectral band indices, were validated with data from the hyperspectral sensor HICO, onboard of the International Space Station.

ChlorophyllChlorophyll aInland watersHICOGeography Planning and DevelopmentEmpirical modellingHyperspectral imagingSpectral bandsCHRIS/PROBAchemistry.chemical_compoundClorofilaGeographychemistryInternational Space StationEarth and Planetary Sciences (miscellaneous)Aguas continentalesSentinel-3Sentinel-2OLCIMSIRemote sensing
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