Results 21 to 30 of about 54,145 (274)

An enhanced large-scale benthic reflectance retrieval model for the remote sensing of submerged ecosystems in optically shallow waters

ISPRS Journal of Photogrammetry and Remote Sensing
Xianqiang He, Difeng Wang, Yan Bai
exaly   +2 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

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, Finot, Christophe, Fatome, Julien, Millot, Guy   +3 more
openaire   +3 more sources

Deriving particulate backscattering coefficient at 400 nm from small-scale optically shallow waters using Landsat-8 data: a case study at Luhuitou Peninsula, Sanya.

Optics Express, 2023
The particulate backscattering coefficient (bbp) plays an important role in the growth of coral reefs by influencing the light field conditions. Small-scale optically shallow waters are commonly found in coastal fringing reefs, making it challenging to ...
Yongming Liu, Zhantang Xu, Shilin Tang, Kai Zeng, Jie Wu, Sufen Wang   +5 more
semanticscholar   +1 more source

Ocean colour remote sensing in the southern Laptev Sea: evaluation and applications [PDF]

Biogeosciences, 2014
Enhanced permafrost warming and increased Arctic river discharges have heightened concern about the input of terrigenous matter into Arctic coastal waters.
B. Heim, E. Abramova, R. Doerffer, F. Günther, J. Hölemann, A. Kraberg, H. Lantuit, A. Loginova, F. Martynov, P. P. Overduin, C. Wegner   +10 more
doaj   +1 more source

Spectral and Radiometric Measurement Requirements for Inland, Coastal and Reef Waters

Remote Sensing, 2020
This paper studies the measurement requirements of spectral resolution and radiometric sensitivity to enable the quantitative determination of water constituents and benthic parameters for the majority of optically deep and optically shallow waters on ...
Peter Gege, Arnold G. Dekker
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, Jens Schneider von Deimling, Philipp Schubert, Natascha Oppelt   +3 more
doaj   +1 more source

Unsupervised Optical Classification of the Seabed Color in Shallow Oligotrophic Waters from Sentinel-2 Images: A Case Study in the Voh-Koné-Pouembout Lagoon (New Caledonia)

Remote Sensing, 2022
Monitoring chlorophyll-a concentration or turbidity is crucial for understanding and managing oligo- to mesotrophic coastal waters quality. However, mapping bio-optical components from space in such shallow settings remains challenging because of the ...
Guillaume Wattelez, Cécile Dupouy, Farid Juillot   +2 more
doaj   +1 more source

Wave Effects of the Fractional Shallow Water Equation and the Fractional Optical Fiber Equation

Frontiers in Applied Mathematics and Statistics, 2022
The non-linear space-time fractional Estevez-Mansfield-Clarkson (EMC) equation and the non-linear space-time fractional Ablowitz-Kaup-Newell-Segur (AKNS) equation showed the motion of waves in the shallow water equation and the optical fiber equation, respectively.
Sirasrete Phoosree, Weerachai Thadee
openaire   +2 more sources

Bottom Reflectance in Ocean Color Satellite Remote Sensing for Coral Reef Environments

Remote Sensing, 2015
Most ocean color algorithms are designed for optically deep waters, where the seafloor has little or no effect on remote sensing reflectance. This can lead to inaccurate retrievals of inherent optical properties (IOPs) in optically shallow water ...
Martina Reichstetter, Peter R. C. S. Fearns, Scarla J. Weeks, Lachlan I. W. McKinna, Chris Roelfsema, Miles Furnas   +5 more
doaj   +1 more source