Results 1 to 10 of about 26,225 (182)

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

Remote 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   +2 more sources

Using Optical Water Types to Monitor Changes in Optically Complex Inland and Coastal Waters [PDF]

Remote Sensing, 2019
The European Space Agency’s Copernicus satellites Sentinel-2 and Sentinel-3 provide observations with high spectral, spatial, and temporal resolution which can be used to monitor inland and coastal waters. Such waters are optically complex, and the
Kristi Uudeberg, Ilmar Ansko, Getter Põru, Ave Ansper, Anu Reinart   +4 more
doaj   +2 more sources

Expected Improvements in the Quantitative Remote Sensing of Optically Complex Waters with the Use of an Optically Fast Hyperspectral Spectrometer—A Modeling Study [PDF]

Sensors, 2015
Using simulated data, we investigated the effect of noise in a spaceborne hyperspectral sensor on the accuracy of the atmospheric correction of at-sensor radiances and the consequent uncertainties in retrieved water quality parameters.
Wesley J. Moses, Jeffrey H. Bowles, Michael R. Corson   +2 more
doaj   +2 more sources

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

Environmental 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, Ronghua Ma, Steven A Loiselle, Hongtao Duan   +3 more
doaj   +5 more sources

Evaluation of Satellite Retrievals of Chlorophyll-a in the Arabian Gulf [PDF]

Remote 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, Dionysios E. Raitsos, Radhouan Ben-Hamadou, Yousria Soliman   +3 more
doaj   +4 more sources

The dust disk of HR4049 [PDF]

, 2002
We present the Spectral Energy Distribution of HR 4049 based on literature data and new continuum measurements at 850 micron. The SED shows variable absorption in the UV, and a large IR excess, both caused by circumstellar dust.
Bakker, Beintema, Buss, C. Dominik, C. P. Dullemond, Chen, Chiang, Cuzzi, de Graauw, Dominik, Draine, Dullemond, Geballe, Guillois, H. van Winckel, J. Cami, Jeffreys, Johnson, Joshi, Kenyon, Kessler, Lamers, Mellema, Miyake, Monier, Pringle, Roddier, Sahai, Savage, Tielens, van Winckel, van Winckel, Waelkens, Waelkens, Waelkens, Waters, Waters, Zuckerman   +37 more
core   +35 more sources

Hyperspectral optical absorption closure experiment in complex coastal waters [PDF]

Limnology and Oceanography: Methods, 2021
AbstractAccurate measurements of absorption data are required for the development and validation of inversion algorithms for upcoming hyperspectral ocean color imaging sensors, such as the NASA Phytoplankton, Aerosol, Cloud, and ocean Ecosystem mission.
Ina Kostakis, Michael Twardowski, Collin Roesler, Rüdiger Röttgers, Dariusz Stramski, David McKee, Alberto Tonizzo, Susan Drapeau   +7 more
openaire   +5 more sources

In-situ manipulations of aquatic optical depth and its effect on small unoccupied aerial systems–derived spectral reflectance

Drone Systems and Applications, 2022
The collection of spectral data with sensors fixed to various platforms (e.g., satellites, occupied aerial vehicles, and small unoccupied aerial systems (sUAS)) has allowed for the estimation of optically active constituents (OACs) common in surface ...
Brandon K. Holzbauer-Schweitzer, Robert W. Nairn   +1 more
doaj   +1 more source

Satellite monitoring of chlorophyll-a threshold levels during an exceptional cyanobacterial bloom (2018-2019) in the Río de la Plata

Ribagua, 2023
The Río de la Plata estuary, located in southeast South America, is of great social and environmental relevance for the region. In the summer of 2018–2019, an exceptional cyanobacterial bloom was detected along the northern coast of the estuary, which ...
Fernanda P. Maciel, Signe Haakonsson, Lucía Ponce de León, Sylvia Bonilla, Francisco Pedocchi   +4 more
doaj   +1 more source

Mapping bathymetry and shallow water benthic habitats in inland and coastal waters with Sentinel-2

Journal of Limnology, 2023
Accurate determination of the water depth and benthic macroalgae composition in coastal and inland water bodies is important due to the high commercial and ecological value of these regions.
Laura Argus, Tiit Kutser, Birgot Paavel, Martin Ligi, Claudia Giardino, Mariano Bresciani, Tiia Möller   +6 more
doaj   +1 more source