Results 51 to 60 of about 1,679 (195)

Assimilation of OLCI total column water vapour in the Met Office global numerical weather prediction system

Meteorological Applications, 2021
The representation of water vapour in numerical weather prediction models is still subject to significant uncertainties, which are partly due to the lack of observations of water vapour in the lower troposphere over land and sea‐ice areas.
Roger Saunders
doaj   +1 more source

Evaluating the Efficacy of Five Chlorophyll-a Algorithms in Chesapeake Bay (USA) for Operational Monitoring and Assessment

Journal of Marine Science and Engineering, 2022
This manuscript describes methods for evaluating the efficacy of five satellite-based Chlorophyll-a algorithms in Chesapeake Bay, spanning three separate sensors: Ocean Land Color Imager (OLCI), Visible Infrared Imaging Radiometer Suite (VIIRS), and ...
Timothy T. Wynne, Michelle C. Tomlinson, Travis O. Briggs, Sachidananda Mishra, Andrew Meredith, Ronald L. Vogel, Richard P. Stumpf   +6 more
doaj   +1 more source

Improving Digital Mapping of Soil Organic Carbon and Total Nitrogen Through Integration of Sentinel‐1 Backscatter, InSAR Coherence, and Sentinel‐3 OLCI/SLSTR Observations

Land Degradation &Development, EarlyView.
ABSTRACT The potential of optical satellites for the spatial prediction of soil organic carbon (SOC) and total nitrogen (STN) has long been recognized. Owing to their balanced spatial–temporal resolution, multisource observational capabilities, and unprecedented availability of free data, Sentinel satellites offer unique opportunities for mapping soil ...
Tao Zhou, Xueting Zheng, Hongmin Zhang, Yajun Geng, Huijie Li, Junming Liu, Tingting Liu, Asim Biswas, Bingcheng Si   +8 more
wiley   +1 more source

IdePix for Sentinel-3 OLCI Algorithm Theoretical Basis Document

, 2022
This document provides the theoretical basis for the Sentinel-3 OLCI IdePix. IdePix stands for Identification of Pixel properties and is a multi-sensor pixel identification tool available as a SNAP (Sentinel Application Platform) plugin. IdePix provides pixel identification algorithms for a wide variety of sensors like Sentinel-2 MSI, Sentinel-3 OLCI ...
Wevers, Jan, Müller, Dagmar, Kirches, Grit, Quast, Ralf, Brockmann, Carsten   +4 more
openaire   +2 more sources

Toward Atmospheric Correction Algorithms for Sentinel-3/OLCI Images of Productive Waters

Remote Sensing, 2022
Atmospheric correction of remote sensing imagery over optically complex waters is still a challenging task. Even algorithms showing a good accuracy for moderate and extremely turbid waters need to be tested when being used for eutrophic inland basins. Such a test was carried out in this study on the example of a Sentinel-3/OLCI image of the productive ...
Alexander A. Molkov, Sergei V. Fedorov, Vadim V. Pelevin   +2 more
openaire   +2 more sources

Assessment of Estimated Phycocyanin and Chlorophyll-a Concentration from PRISMA and OLCI in Brazilian Inland Waters: A Comparison between Semi-Analytical and Machine Learning Algorithms

Remote Sensing, 2023
The aim of this work is to test the state-of-the-art of water constituent retrieval algorithms for phycocyanin (PC) and chlorophyll-a (chl-a) concentrations in Brazilian reservoirs from hyperspectral PRISMA images and concurrent in situ data.
Thainara Munhoz Alexandre de Lima, Claudia Giardino, Mariano Bresciani, Claudio Clemente Faria Barbosa, Alice Fabbretto, Andrea Pellegrino, Felipe Nincao Begliomini   +6 more
doaj   +1 more source

Entering the Era of Directly Supporting Society With Observation‐Based Ocean Acidification Data

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Ocean acidification is a growing concern for many nations around the world. However, our capacity to monitor changes in carbonate chemistry with sufficient spatial and temporal resolution, has until now, been limited, which has impeded effective action and decision‐making at international, national, and regional levels.
Helen S. Findlay, Lucile Gaultier, Luke Gregor, Nicolas Gruber, Peter Land, Daniel Ford, Roberto Sabia, Aleluia Taise‐Uili, Stephen Widdicombe, Jan Newton, Kaitlyn Lowder, Jamie Shutler   +11 more
wiley   +1 more source

Strategic Roadmap for Addressing Microplastic Pollution in the Global South: Bridging Monitoring Gaps, Harmonizing Methods, and Building Analytical Capacity

Environmental Quality Management, Volume 35, Issue 4, Summer 2026.
ABSTRACT Microplastic (MP) pollution represents a growing environmental challenge, especially in tropical and subtropical coastal regions of the Global South, where methodological fragmentation, funding discontinuity, and dependence on external analytical infrastructure limit the production of comparable data and the formulation of evidence‐based ...
Guilherme Malafaia, Thiarlen Marinho da Luz   +1 more
wiley   +1 more source

Global Drivers of Phytoplankton Phenology Trends

Global Change Biology, Volume 32, Issue 6, June 2026.
Observations and a global biogeochemical model were used to examine recent shifts in phytoplankton phenology at the global scale. Sea surface temperature trends emerge as the strongest predictor of these changes, relative to the other drivers considered, and are associated with earlier initiation, later termination, and longer growing periods ...
Joe K. Guest, Marie‐Fanny Racault, Corinne Le Quéré   +2 more
wiley   +1 more source

Integrating spatio-temporal-spectral information for downscaling Sentinel-3 OLCI images [PDF]

, 2021
Sentinel-3 is a newly launched satellite implemented by the European Space Agency (ESA) for global observation. The Ocean and Land Colour Imager (OLCI) sensor onboard Sentinel-3 provides 21 band images with a fine spectral resolution and is of great ...
Wang, Q., Tong, X., Tang, Y., Atkinson, P.M.   +3 more
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