Results 61 to 70 of about 1,277 (193)

The Use of Sentinel-3/OLCI for Monitoring the Water Quality and Optical Water Types in the Largest Portuguese Reservoir

Remote Sensing, 2022
The Alqueva reservoir is essential for water supply in the Alentejo region (south of Portugal). Satellite data are essential to overcome the temporal and spatial limitations of in situ measurements, ensuring continuous and global water quality monitoring. Data between 2017 and 2020, obtained from OLCI (Ocean and Land Color Instrument) aboard Sentinel-3,
Gonçalo Rodrigues, Miguel Potes, Alexandra Marchã Penha, Maria João Costa, Maria Manuela Morais   +4 more
openaire   +2 more sources

Hybrid Semi-Analytical Algorithm for Estimating Chlorophyll-A Concentration in Lower Amazon Floodplain Waters

Frontiers in Remote Sensing, 2022
The Amazon Basin is the largest on the planet, and its aquatic ecosystems affect and are affected by the Earth’s processes. Specifically, Amazon aquatic ecosystems have been subjected to severe anthropogenic impacts due to deforestation, mining, dam ...
Rogério Flores Júnior, Rogério Flores Júnior, Rogério Flores Júnior, Claudio Clemente Faria Barbosa, Daniel Andrade Maciel, Evlyn Marcia Leão de Moraes Novo, Vitor Souza Martins, Vitor Souza Martins, Felipe de Lucia Lobo, Lino Augusto Sander de Carvalho, Felipe Menino Carlos   +10 more
doaj   +1 more source

Recent Changes and Variability of Suspended Particulate Matter in European and Mediterranean Coastal Waters Inferred From OLCI Data

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Suspended Particulate Matter (SPM) plays a central role in coastal marine ecosystems, influencing light availability, primary production, and transport of sediments, nutrients, and pollutants. Monitoring its variability is essential for understanding the impacts of both natural and anthropogenic pressures on coastal regions.
Corentin Subirade, Cédric Jamet, Vincent Vantrepotte   +2 more
wiley   +1 more source

An extensive validation of ocean color products for the black sea

GIScience & Remote Sensing
Ocean color remote sensing provides an efficient approach to monitor the state and changes in water bodies on Earth. The validation of an ocean color product is a key step in assessing its accuracy, directly influencing the confidence with which ...
Dalin Jiang, Luis González Vilas, Elizabeth C. Atwood, Vittorio E. Brando, Simone Colella, Violeta Slabakova, Ivelin Petkov, Adriana Maria Constantinescu, Iulian Pojar, Adrian Stanica, Conor McGlinchey, Ximena Aguilar Vega, Douglas Moore, Evangelos Spyrakos, Andrew Tyler   +14 more
doaj   +1 more source

Diverse Seasonal Patterns of Precipitation and Terrestrial Water Storage Over the Indochina Peninsula: Roles of Monsoons, ENSO, and Topography

Hydrological Processes, Volume 40, Issue 4, April 2026.
Warm ENSO phase events weaken Asian monsoons, reducing precipitation and TWS in northern and southern ICP, while central ICP's bowl‐shaped topography increases TWS. Seasonally, the Indian Monsoon brings abundant rainfall during May–September, which lags into TWS by 2 months.
Qing He, Hok Sum Fok, Zhongtian Ma, Bastien Dieppois, Vagner Ferreira   +4 more
wiley   +1 more source

Assimilation of solar‐induced fluorescence satellite observations in the European Centre for Medium‐Range Weather Forecasts integrated forecast system

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 776, April 2026 Part A.
This work demonstrates the potential of the assimilation of satellite solar‐induced fluorescence (SIF) retrievals at eight‐day and 0.1° resolutions in the integrated forecast system (IFS), developed at the European Centre for Medium‐Range Weather Forecasts (ECMWF), at global scale, to provide a more realistic representation of the vegetation temporal ...
Sébastien Garrigues, Patricia de Rosnay, Peter Weston, Christoph Rüdiger, Cédric Bacour, David Fairbairn, Pierre Vanderbecken, Oscar Rojas‐Munoz, Ewan Pinnington, Anna Agusti‐Panareda, Souhail Boussetta, Jean‐Christophe Calvet, Richard Engelen   +12 more
wiley   +1 more source

Google Earth Engine Sentinel-3 OLCI Level-1 dataset deviates from the original data: Causes and consequences [PDF]

, 2021
In this study, we demonstrate that the Google Earth Engine (GEE) dataset of Sentinel-3 Ocean and Land Color Instrument (OLCI) level-1 deviates from the original Copernicus Open Access Data Hub Service (DHUS) data by 10–20 W m −2 sr −1 µm −1 per pixel per
Prikaziuk, E.; id_orcid, Christiaan van der Tol, Prikaziuk, E., van der Tol, C., Yang, Peiqi, Peiqi Yang, Egor Prikaziuk   +6 more
core   +1 more source

Advancing CyanoHAB monitoring with hyperspectral data from NASA PACE: First results and validation

International Journal of Applied Earth Observations and Geoinformation
This study presents the first assessment of NASA’s Phytoplankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission’s hyperspectral Ocean Color Imager (OCI) for cyanobacterial harmful algal blooms (cyanoHABs) monitoring.
Abhishek Kumar, Chintan B. Maniyar, Nathan Tesfayi, Brice K. Grunert, Isabella R. Fiorentino, Kendra Herweck, Emily Hyland, Bingqing Liu, Bradley Bartelme, Deepak R. Mishra   +9 more
doaj   +1 more source

ROSACE: A Proposed European Design for the Copernicus Ocean Colour System Vicarious Calibration Infrastructure

Remote Sensing, 2020
The European Copernicus programme ensures long-term delivery of high-quality, global satellite ocean colour radiometry (OCR) observations from its Sentinel-3 (S3) satellite series carrying the ocean and land colour instrument (OLCI).
David Antoine, Vincenzo Vellucci, Andrew C. Banks, Philippe Bardey, Marine Bretagnon, Véronique Bruniquel, Alexis Deru, Odile Hembise Fanton d’Andon, Christophe Lerebourg, Antoine Mangin, Didier Crozel, Stéphane Victori, Alkiviadis Kalampokis, Aristomenis P. Karageorgis, George Petihakis, Stella Psarra, Melek Golbol, Edouard Leymarie, Agnieszka Bialek, Nigel Fox, Samuel Hunt, Joel Kuusk, Kaspars Laizans, Maria Kanakidou   +23 more
doaj   +1 more source

A Phenoregion Approach to Understanding Chlorophyll‐a Seasonal Cycles and Interannual Variability in the South‐West Indian Ocean

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract The South‐West Indian Ocean (SWIO) displays marked spatial variations in physical forcings, driving in turn distinct seasonal biogeochemical regimes. Mesoscale eddies in the Mozambique Channel drive large‐scale redistribution of nutrients and plankton, while eastern Madagascar waters are highly oligotrophic.
Aline Arens, Pierrick Penven, Fanny Chenillat, Stéphane Pous, Fialho Nehama, Bernardino S. Malauene   +5 more
wiley   +1 more source