Results 41 to 50 of about 22,964 (247)

Assessment of different models for bathymetry calculation using SPOT multispectral images in a high-turbidity area: the mouth of the Guadiana Estuary [PDF]

open access: yes, 2013
Periodic calculation of coastal bathymetries can show the evolution of geomorpholo- gical features in active areas such as mesotidal estuary mouths.
Ojeda Zújar, José
core   +1 more source

Seamount resolution in satellite‐derived bathymetry [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2005
I compare satellite‐derived global relief data on 13 seamounts in the northeast Pacific Ocean to echosounder‐derived multibeam values from the Gulf of Alaska Seamount Expeditions and the West Coast Seamounts and Ridges Multibeam Surveys for peak height, latitude, longitude, and midsection area.
openaire   +1 more source

Evaluation of the Accuracy of Bathymetry on the Nearshore Coastlines of Western Korea from Satellite Altimetry, Multi-Beam, and Airborne Bathymetric LiDAR

open access: yesSensors, 2018
Bathymetric mapping is traditionally implemented using shipborne single-beam, multi-beam, and side-scan sonar sensors. Procuring bathymetric data near coastlines using shipborne sensors is difficult, however, this type of data is important for maritime ...
Yeon Yeu   +3 more
doaj   +1 more source

Satellite-derived bathymetry using machine learning and optimal Sentinel-2 imagery in South-West Florida coastal waters

open access: yesGIScience & Remote Sensing, 2022
This study examines the use of the Multi-Spectral Instrument (MSI) in Sentinel-2 satellite in combination with regression-based random forest models to estimate bathymetry along the extended southwestern Florida nearshore region.
S.S.J.D. Mudiyanselage   +3 more
doaj   +1 more source

The value of remote sensing techniques in supporting effective extrapolation across multiple marine spatial scales [PDF]

open access: yes, 2017
The reporting of ecological phenomena and environmental status routinely required point observations, collected with traditional sampling approaches to be extrapolated to larger reporting scales.
Elliott, Michael, Strong, James Asa
core   +1 more source

An Improved Gridded Bathymetric Data Set and Tidal Model for the Maldives Archipelago

open access: yesEarth and Space Science, 2021
The Maldives faces a unique range of environmental challenges. While the country is almost entirely dependent upon oceanic resources with more than 99% of the area covered by ocean, the absence of a suitable bathymetric map of the seafloor of the ...
Shuaib Rasheed   +3 more
doaj   +1 more source

Origen del Alineamiento Submarino de Pascua: morfología y lineamientos estructurales [PDF]

open access: yes, 2014
Indexación: Web of Science; Scielo.ABSTRACT. The Easter submarine alignment corresponds to a sequence of seamounts and oceanic islands which runs from the Ahu-Umu volcanic fields in the west to its intersection with the Nazca Ridge in the east, with a ...
Díaz, Juan   +2 more
core   +2 more sources

Pan-European Satellite-Derived Coastal Bathymetry—Review, User Needs and Future Services

open access: yesFrontiers in Marine Science, 2021
Low-lying coastal zones are home to around 10% of the world’s population and to many megacities. Coastal zones are largely vulnerable to the dynamics of natural and human-induced changes.
Guillaume Cesbron   +5 more
doaj   +1 more source

The application of satellite derived bathymetry for coastline mapping

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract There is a gap in bathymetry data in shallow water due to the difficulty in measuring the depth. Meanwhile, to obtain an accurate datum-based coastline, sufficient depth and topography data are required. In the situation in which bathymetry data from the conventional method (sounding measurement) is limited, the bathymetry data ...
R S Dewi, I Sofian, null Suprajaka
openaire   +1 more source

Improving Shallow Water Bathymetry Inversion through Nonlinear Transformation and Deep Convolutional Neural Networks

open access: yesRemote Sensing, 2023
Nearshore bathymetry plays an essential role in various applications, and satellite-derived bathymetry (SDB) presents a promising approach due to its extensive coverage and comprehensive bathymetric map production capabilities.
Shuting Sun   +4 more
doaj   +1 more source

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