Results 41 to 50 of about 3,051 (183)

Video Sensing of Nearshore Bathymetry Evolution with Error Estimate

Journal of Marine Science and Engineering, 2019
Although coastal morphology results essentially from underwater sediment transports, the evolution of underwater beach profiles along the diverse coastlines of the world is still poorly documented. Bathymetry inversion from shore-based video cameras set forth a more systematic evaluation and is becoming more commonly used.
Duong Hai Thuan, Rafael Almar, Patrick Marchesiello, Nguyen Trung Viet   +3 more
openaire   +4 more sources

River discharge and bathymetry estimation from SWOT altimetry measurements

Inverse Problems in Science and Engineering, 2020
An inverse method to estimate the discharge of rivers observed by satellite altimetry is developed and assessed.
Larnier, Kévin, Monnier, Jerome, Garambois, P.-A., Verley, J.   +3 more
openaire   +2 more sources

Bathymetry mapping and sea floor classification using multispectral satellite data and standardized physics-based data processing

, 2011
Multispectral satellite data (WordView-2, IKONOS, QuickBird) are used to map bathymetry and spectral sea floor classes in a range of coastal areas.
Ohlendorf, S., Sergio Cerdeira-Estrada, Cerdeira-Estrada, S., Halina T. Kobryn, Müller, A., Heege, T., Andreas Müller, Sabine Ohlendorf, Thomas Heege, Kobryn, H.T.   +9 more
core   +1 more source

Data Assimilation for Bathymetry Estimation at a Tidal Inlet

Journal of Atmospheric and Oceanic Technology, 2016
AbstractThis study involved developing and testing a data assimilation framework that accommodates different types of geophysical ocean data (i.e., surface velocity and wave information) and provides an estimation of the bathymetry of a mixed-energy tidal inlet.
S. Moghimi, H. T. Özkan-Haller, G. W. Wilson, A. Kurapov   +3 more
openaire   +1 more source

ECCOv4 Bathymetry and Geometry

, 2022
Bathymetry and geometry definition of the LLC90 used in ECCOv4. Accessed via ftp://ecco.jpl.nasa.gov/Version4/, when it was available. For current access to the rest of the ECCO product, see ecco-group.org.
Timothy Smith (8672454)
core   +1 more source

Assessment of Empirical Algorithms for Shallow Water Bathymetry Using Multi-Spectral Imagery of Pearl River Delta Coast, China

Remote Sensing, 2021
Pearl River Delta (PRD), as one of the most densely populated regions in the world, is facing both natural changes (e.g., sea level rise) and human-induced changes (e.g., dredging for navigation and land reclamation).
Chunzhu Wei, Qianying Zhao, Yang Lu, Dongjie Fu   +3 more
doaj   +1 more source

An Approach to Minimize Atmospheric Correction Error and Improve Physics-Based Satellite-Derived Bathymetry in a Coastal Environment

Remote Sensing, 2020
Physics-based radiative transfer model (RTM) inversion methods have been developed and implemented for satellite-derived bathymetry (SDB); however, precise atmospheric correction (AC) is required for robust bathymetry retrieval.
Christopher O. Ilori, Anders Knudby
doaj   +1 more source

Integration of Photogrammetric and Spectral Techniques for Advanced Drone-Based Bathymetry Retrieval Using a Deep Learning Approach

Remote Sensing, 2022
Shallow bathymetry mapping using proximal sensing techniques is an active field of research that offers a new perspective in studying the seafloor. Drone-based imagery with centimeter resolution allows for bathymetry retrieval in unprecedented detail in ...
Evangelos Alevizos, Vassilis C. Nicodemou, Alexandros Makris, Iason Oikonomidis, Anastasios Roussos, Dimitrios D. Alexakis   +5 more
doaj   +1 more source

The Contribution of Multispectral Satellite Image to Shallow Water Bathymetry Mapping on the Coast of Misano Adriatico, Italy

Journal of Marine Science and Engineering, 2020
The results of absolute satellite-derived bathymetry (SDB) are presented in the current study. A comparative analysis was conducted on empirical methods in order to explore the potential of SDB in shallow water on the coast of Misano, Italy.
Anselme Muzirafuti, Giovanni Barreca, Antonio Crupi, Giancarlo Faina, Diego Paltrinieri, Stefania Lanza, Giovanni Randazzo   +6 more
doaj   +1 more source

Estimating Changes in Near-Shore Bathymetry with Subaerial Surveys [PDF]

Journal of Atmospheric and Oceanic Technology, 2013
Abstract Surveys of the subaerial beach (e.g., landward of approximately the MSL depth contour) are widely used to evaluate temporal changes in sand levels over large alongshore reaches. Here, seasonal beach face volume changes based on full bathymetry beach profiles (to ~8 m in depth) are compared with estimates based on the subaerial ...
Doria, A, Guza, R. T
openaire   +3 more sources