Results 11 to 20 of about 5,637,270 (277)
The spectral upwelling radiance distribution in optically shallow waters [PDF]
Limnology and Oceanography, 2003 The upwelling radiance distribution in optically shallow water is investigated with experiments and Hydrolight numerical simulations for two different benthic surfaces and a range of solar zenith angles (≪60°). Over a bright sand surface (water depth 5 m) the upwelling radiance distribution was brightest at nadir and decreased toward the horizon.
Kenneth J. Voss +4 more
openaire +2 more sources
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018 With the exception of a few areas, Lake Michigan (LM) is an oligotrophic clear water body. It is predominantly in its littoral zone where ecology-relevant processes unfold due to a variety of natural and anthropogenic forcings arising from the watershed.
Anton Korosov +5 more
doaj +3 more sources
A NEW TECHNIQUE BASED ON MINI-UAS FOR ESTIMATING WATER AND BOTTOM RADIANCE CONTRIBUTIONS IN OPTICALLY SHALLOW WATERS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 The mapping of nearshore bathymetry based on spaceborne radiometers is commonly used for QC ocean colour products in littoral waters. However, the accuracy of these estimates is relatively poor with respect to those derived from Lidar systems due in part
M. A. Montes-Hugo, C. Barrado, E. Pastor
doaj +5 more sources
Satellite-Derived Bottom Depth for Optically Shallow Waters Based on Hydrolight Simulations
Remote Sensing, 2022 The bottom depth of coastal benthic habitats plays a vital role in the coastal ecological environment and navigation. In optically shallow waters (OSWs), seafloor reflectance has an impact on the remotely sensed data, and thus, water depth can be ...
Yuxin Wang +6 more
doaj +2 more sources
Shear instabilities in shallow-water magnetohydrodynamics [PDF]
, 2013 The interaction of horizontal shear flows and magnetic fields in stably stratified layers is central to many problems in astrophysical fluid dynamics.
Mak, Julian
core +6 more sources
Shallow water rogue wavetrains in nonlinear optical fibers [PDF]
Physics Letters A, 2013 In addition to deep-water rogue waves which develop from the modulation instability of an optical CW, wave propagation in optical fibers may also produce shallow water rogue waves. These extreme wave events are generated in the modulationally stable normal dispersion regime. A suitable phase or frequency modulation of a CW laser leads to chirp-free and
Wabnitz, Stefan +3 more
openaire +3 more sources
Neuromorphic Optical Tracking and Imaging of Randomly Moving Targets Through Dynamic Dense Scattering Media. [PDF]
Adv Sci (Weinh)Vision begins not with images but with change: the retina fires only when something moves, handing the brain a stream of spikes. A neuromorphic imaging system adopts the same strategy—an event sensor that sees like the retina, a spiking network that thinks like the brain—to track and reconstruct fully randomly moving targets through tissue (phantom ...
Zhang N, Nurmikko A.
europepmc +2 more sources
Modified method of characteristics for the shallow water equations [PDF]
, 2007 Flow in open channels is frequently modelled using the shallow water equations (SWEs) with an up-winded scheme often used for the nonlinear terms in the numerical scheme (Delis et al., 2000; Erduran et al., 2002). This paper presents a mathematical model
Elhanafy, Hossam, Copeland, Graham M.
core +3 more sources
A Method to Analyze the Potential of Optical Remote Sensing for Benthic Habitat Mapping
Remote Sensing, 2015 Quantifying the number and type of benthic classes that are able to be spectrally identified in shallow water remote sensing is important in understanding its potential for habitat mapping.
Rodrigo A. Garcia +3 more
doaj +1 more source
How can Sentinel‐2 contribute to seagrass mapping in shallow, turbid Baltic Sea waters?
Remote Sensing in Ecology and Conservation, 2022 Seagrass meadows are one of the most important benthic habitats in the Baltic Sea. Nevertheless, spatially continuous mapping data of Zostera marina, the predominant seagrass species in the Baltic Sea, are lacking in the shallow coastal waters.
Katja Kuhwald +3 more
doaj +1 more source