Results 31 to 40 of about 14,011 (247)

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

open access: yesRemote 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   +23 more
doaj   +1 more source

Assessing the role and consistency of satellite observation products in global physical–biogeochemical ocean reanalysis [PDF]

open access: yesOcean Science, 2020
As part of the European Space Agency's Climate Change Initiative, new sets of satellite observation products have been produced for essential climate variables including ocean colour, sea surface temperature, sea level, and sea ice.
D. A. Ford
doaj   +1 more source

Coupling ecological concepts with an ocean-colour model: inversion modelling

open access: yesFrontiers in Remote Sensing
Monitoring phytoplankton from space can help detect shifts in marine ecosystems, particularly under accelerating climate change. However, most existing ocean-colour chlorophyll-a (Chl-a) algorithms are empirical in nature, and do not explicitly consider ...
Xuerong Sun   +18 more
doaj   +1 more source

Deterministic Nucleation of Nanocrystal Superlattices on 2D Perovskites for Light‐Funneling Heterostructures

open access: yesAdvanced Materials, EarlyView.
This work investigates the heterogeneous nucleation of CsPbBr3${\rm CsPbBr}_3$ nanocrystal superlattices along the faces of 2D PEA2PbBr4${\rm PEA}_2{\rm PbBr}_4$ layered perovskite microcrystals. Core–crown and core–shell heterostructure morphologies are obtained.
Umberto Filippi   +6 more
wiley   +1 more source

Evaluation of Satellite Retrievals of Chlorophyll-a in the Arabian Gulf

open access: yesRemote Sensing, 2017
The Arabian Gulf is a highly turbid, shallow sedimentary basin whose coastal areas have been classified as optically complex Case II waters (where ocean colour sensors have been proved to be unreliable).
Noora Al-Naimi   +3 more
doaj   +1 more source

Spectral Compensation Strategy for Radical‐Induced Dye Degradation in Liquid Crystal Polymer Composites

open access: yesAdvanced Optical Materials, EarlyView.
A spectral compensation strategy is introduced to overcome radical‐induced degradation of dichroic dyes during UV photopolymerization. By incorporating a complementary photochromic liquid‐crystalline dye, broadband optical attenuation is preserved without disrupting photopolymerization, enabling high‐contrast and durable dye‐doped liquid crystal ...
Wei‐Hsien Wu   +4 more
wiley   +1 more source

True Colour Classification of Natural Waters with Medium-Spectral Resolution Satellites: SeaWiFS, MODIS, MERIS and OLCI

open access: yesSensors, 2015
The colours from natural waters differ markedly over the globe, depending on the water composition and illumination conditions. The space-borne “ocean colour” instruments are operational instruments designed to retrieve important water-quality indicators,
Hendrik J. van der Woerd   +1 more
doaj   +1 more source

Redescription of Bleekeria kallolepis (Actinopterygii: Perciformes: Ammodytidae) from Chennai, eastern Indian Ocean [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2019
The yellow-striped sandlance, Bleekeria kallolepis Günther, 1862, is a poorly known ammodytid fish from the eastern Indian Ocean, known from fewer than five specimens. No detailed description or colour images of B.
K.V. Akhilesh   +3 more
doaj   +3 more sources

Electrohydrodynamically Driven Broadband and Color‐Shifting in Cholesteric Liquid Crystals

open access: yesAdvanced Optical Materials, EarlyView.
Ion‐driven electrohydrodynamic effects enable dynamic photonic bandgap modulation in cholesteric liquid crystals under low‐frequency AC driving. By regulating ion‐mediated disturbance of the helical structure, this approach produces two reversible optical responses: rapid color shifting across the visible spectrum and broadband reflection spanning the ...
Cheng‐Kuan Wu   +6 more
wiley   +1 more source

Analysis of Chlorophyll-a Variability in the Eastern Indonesian Waters Using Sentinel-3 OLCI from 2020-2021

open access: yesForum Geografi
The Eastern Indonesian waters are significant in influencing the global climate system and oceanic connectivity. However, the Indonesian Through Flow (ITF) facilitates the movement of waters from the Pacific Ocean to the Indian Ocean.
Eko Handoko   +3 more
doaj   +1 more source

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