Results 11 to 20 of about 5,748,398 (247)

Optical approaches to examining the dynamics of dissolved organic carbon in optically complex inland waters

open access: yesEnvironmental Research Letters, 2012
Optical approaches were developed to examine the relationship between the optically active and the optically inactive fractions of dissolved organic carbon in inland waters.
Guangjia Jiang   +3 more
doaj   +2 more sources

Developing a New Machine-Learning Algorithm for Estimating Chlorophyll-a Concentration in Optically Complex Waters: A Case Study for High Northern Latitude Waters by Using Sentinel 3 OLCI [PDF]

open access: yesRemote Sensing, 2019
The monitoring of Chlorophyll-a (Chl-a) concentration in high northern latitude waters has been receiving increased focus due to the rapid environmental changes in the sub-Arctic, Arctic.
Katalin Blix   +3 more
doaj   +2 more sources

Satellite-derived bathymetry in optically complex waters using a model inversion approach and Sentinel-2 data [PDF]

open access: yes, 2020
This study presents an assessment of a model inversion approach to derive shallow water bathymetry in optically complex waters, with the aim of both understanding localised capability and contributing to the global evaluation of Sentinel-2 for coastal ...
Hedley, John D.   +11 more
core   +1 more source

Seagrass cover map for the optically complex waters of Moreton Bay, Queensland, Australia (2015) XXX

open access: yes, 2021
The aim of this study was to create a seagrass presence/absence map for the optically complex waters of Moreton Bay. The capability to map seagrass meadows in waters of varying clarity using a consistent and repeatable method is an invaluable resource ...
Phinn, Stuart R   +5 more
core   +1 more source

Consistency of Radiometric Satellite Data over Lakes and Coastal Waters with Local Field Measurements

open access: yesRemote Sensing, 2020
The Sentinel-3 mission launched its first satellite Sentinel-3A in 2016 to be followed by Sentinel-3B and Sentinel-3C to provide long-term operational measurements over Earth. Sentinel-3A and 3B are in full operational status, allowing global coverage in
Krista Alikas   +6 more
doaj   +1 more source

Performance and Applicability of Water Column Correction Models in Optically Complex Coastal Waters

open access: yesRemote Sensing, 2020
Maps of submerged aquatic vegetation (SAV) are of primary importance for the sustainable management of coastal areas and serve as a basis for fundamental ecological studies.
Ele Vahtmäe, Tiit Kutser, Birgot Paavel
doaj   +1 more source

Meridional Changes in Satellite Chlorophyll and Fluorescence in Optically-Complex Coastal Waters of Northern Patagonia

open access: yesRemote Sensing, 2021
Northern Patagonia is one of the largest estuarine systems worldwide. It is characterized by complex geography, including islands, peninsulas, channels, and fjords.
Sebastián I. Vásquez   +3 more
doaj   +1 more source

In situ validation of MERIS marine reflectance off the southwest Iberian Peninsula: assessment of vicarious adjustment and corrections for near-land adjacency [PDF]

open access: yes, 2014
Water-leaving reflectance (ρw) data from the European Space Agency ocean colour sensor Medium Resolution Imaging Spectrometer (MERIS) was validated with in situ ρw between October 2008 and November 2011, off Sagres on the southwest coast of the Iberian ...
Newton, Alice   +5 more
core   +1 more source

In situ autonomous optical radiometry measurements for satellite ocean color validation in the Western Black Sea [PDF]

open access: yesOcean Science, 2015
The accuracy of primary satellite ocean color data products from the Moderate Resolution Imaging Spectroradiometer on-board Aqua (MODIS-A) and the Visible/Infrared Imager/Radiometer Suite (VIIRS) is investigated in the Western Black Sea using in situ ...
G. Zibordi   +3 more
doaj   +1 more source

Laser-induced breakdown of an optically trapped gold nanoparticle for single cell transfection [PDF]

open access: yes, 2013
The cell selective introduction of therapeutic agents remains a challenging problem. Here we demonstrate spatially controlled cavitation instigated by laser-induced breakdown of an optically trapped single gold nanoparticle of diameter 100 nm. The energy
Gunn-Moore, Frank J   +10 more
core   +1 more source

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