Results 21 to 30 of about 28,768 (293)

A geoestatística como ferramenta de estudo da batimetria na vertente continental portuguesa [PDF]

open access: yesFinisterra - Revista Portuguesa de Geografia, 2003
GEOSTATISTICS AS A TOOL FOR THE STUDY OF BATHYMETRY ON THE PORTUGUESE CONTINENTAL SLOPE. The increasing interest on deep-water resources by the commercial fishing fleet during the last 20 years led the Fisheries Research National Institute (presently ...
Pedro Bordalo Machado   +1 more
doaj   +2 more sources

The Manning’s Roughness Coefficient Calibration Method to Improve Flood Hazard Analysis in the Absence of River Bathymetric Data: Application to the Urban Historical Zamora City Centre in Spain

open access: yesApplied Sciences, 2021
The accurate estimation of flood risk depends on, among other factors, a correct delineation of the floodable area and its associated hydrodynamic parameters.
Julio Garrote   +3 more
doaj   +1 more source

Automated Global Shallow Water Bathymetry Mapping Using Google Earth Engine

open access: yesRemote Sensing, 2021
Global shallow water bathymetry maps offer critical information to inform activities such as scientific research, environment protection, and marine transportation.
Jiwei Li   +6 more
doaj   +1 more source

S2SHORES: A PYTHON LIBRARY FOR ESTIMATING COASTAL BATHYMETRY

open access: yesCoastal Engineering Proceedings, 2023
Understanding coastal zone dynamics covering large spatial and dense temporal scales is paramount to understand and mitigate emerging coastal issues relating to climatological changes. However, the uncertainties on the coastal zone risks are still too large to predict effectively impacts on an overall increasing coastal population.
Erwin W. J. Bergsma   +7 more
openaire   +1 more source

SAR Bathymetry Review and Its Possibility Implementation in Indonesia

open access: yesJournal of Geospatial Information Science and Engineering, 2023
Indonesia needs bathymetry information for diverse applications as a maritime country. There are various methods of determining the water depth for bathymetry. The advancement of satellite imagery data has led to the increasing use of remote sensing data
Wening Aisyah Fauziana Koman   +2 more
doaj   +1 more source

cBathy: A robust algorithm for estimating nearshore bathymetry [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2013
A three‐part algorithm is described and tested to provide robust bathymetry maps based solely on long time series observations of surface wave motions. The first phase consists of frequency‐dependent characterization of the wave field in which dominant frequencies are estimated by Fourier transform while corresponding wave numbers are derived from ...
Rob Holman   +2 more
openaire   +1 more source

Gradient Boosting and Linear Regression for Estimating Coastal Bathymetry Based on Sentinel-2 Images

open access: yesRemote Sensing, 2022
Thousands of vessels travel around the world every day, making the safety, efficiency, and optimization of marine transportation essential. Therefore, the knowledge of bathymetry is crucial for a variety of maritime applications, such as shipping and ...
Fahim Abdul Gafoor   +3 more
doaj   +1 more source

Radar sounding using the Cassini altimeter waveform modeling and Monte Carlo approach for data inversion observations of Titan's seas [PDF]

open access: yes, 2016
Recently, the Cassini RADAR has been used as a sounder to probe the depth and constrain the composition of hydrocarbon seas on Saturn's largest moon, Titan.
Hayes, A.   +5 more
core   +1 more source

UBathy: a new approach for bathymetric inversion from video imagery [PDF]

open access: yes, 2019
A new approach to infer the bathymetry from coastal video monitoring systems is presented. The methodology uses principal component analysis of the Hilbert transform of video images to obtain the components of the wave propagation field and their ...
Calvete Manrique, Daniel   +4 more
core   +2 more sources

Variational Assimilation of Surface Wave Data for Bathymetry Reconstruction. Part II: Second Order Adjoint Sensitivity Analysis

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2022
Data assimilation methods have been proposed as a technique for reconstructing ocean bathymetry from observations of surface waves. To better understand this technique, we use second order adjoint (SOA) variational analysis to derive the sensitivity of ...
R. A. Khan, N. K.-R. Kevlahan
doaj   +1 more source

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