Results 11 to 20 of about 92,051 (340)

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

A Combined Machine Learning and Residual Analysis Approach for Improved Retrieval of Shallow Bathymetry from Hyperspectral Imagery and Sparse Ground Truth Data

open access: yesRemote Sensing, 2020
Mapping shallow bathymetry by means of optical remote sensing has been a challenging task of growing interest in recent years. Particularly, many studies exploit earlier empirical models together with the latest multispectral satellite imagery (e.g ...
Evangelos Alevizos
doaj   +1 more source

SaTSeaD: Satellite Triangulated Sea Depth Open-Source Bathymetry Module for NASA Ames Stereo Pipeline

open access: yesRemote Sensing, 2023
We developed the first-ever bathymetric module for the NASA Ames Stereo Pipeline (ASP) open-source topographic software called Satellite Triangulated Sea Depth, or SaTSeaD, to derive nearshore bathymetry from stereo imagery.
Monica Palaseanu-Lovejoy   +3 more
doaj   +1 more source

MAPPING BATHYMETRY BY LANDSAT DATA IN SHALLOW COASTAL ENVIRONMENT (CASE STUDY: THE SOUTHEAST OF THE CASPIAN SEA) [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Compared to traditional methods, remote sensing (RS) technique is an efficient, fast, low-priced and effective solution in bathymetry. In this study, a linear equation was applied between field and reflectance data to achieve bathymetry map. Landsat-8 is
L. Amini, A. A. Kakroodi
doaj   +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

A VGGNet-Based Method for Refined Bathymetry from Satellite Altimetry to Reduce Errors

open access: yesRemote Sensing, 2022
Only approximately 20% of the global seafloor topography has been finely modeled. The rest either lacks data or its data are not accurate enough to meet practical requirements.
Xiaolun Chen   +7 more
doaj   +1 more source

Gravity-derived Antarctic bathymetry using the Tomofast-x open-source code: a case study of Vincennes Bay [PDF]

open access: yesThe Cryosphere
Vincennes Bay is a region of East Antarctica that is vulnerable to sub-ice-shelf basal melting from warm ocean water intrusions. The sub-ice-shelf bathymetry in this region is largely unknown despite its importance for ocean dynamics within ice shelf ...
L. A. Bird   +12 more
doaj   +1 more source

Evaluating ACOMP, FLAASH and QUAC on Worldview-3 for satellite derived bathymetry (SDB) in shallow water

open access: yesGeodesy and Cartography, 2020
Bathymetry map is instrumental for monitoring marine ecosystem and supporting marine transportation. Optical satellite imagery has been widely utilised as an alternative method to derive bathymetry map in shallow water.
Abdul Basith, Ratna Prastyani
doaj   +1 more source

The European harmonised bathymetry grid EMODnet Bathymetry

open access: yesHydrographische Nachrichten, 2020
The EMODnet Bathymetry portal provides open and free access to the bathymetry of the European seas. This article presents the current status of the EMODnet Bathymetry project, its impact on the marine stakeholders, with examples from the German community, and provides an outlook to future developments.
Schmitt, Thierry   +5 more
openaire   +2 more sources

Variational assimilation of surface wave data for bathymetry reconstruction. Part I: algorithm and test cases

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2021
Accurate mapping of ocean bathymetry is needed for effective modelling of ocean dynamics, such as tsunami prediction. Available bathymetry data does not always provide the resolution to model such nonlinear waves accurately, and collection of accurate ...
R. A. Khan, N. K.-R. Kevlahan
doaj   +1 more source

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