Results 61 to 70 of about 974 (171)

MAGIC: conoscere i mari italiani e individuarne i geo-rischi

GEOmedia, 2010
MAGIC project: Marine Geohazard along the Italian Coasts MAGIC Project is funded by the Italian Civil Protection  Department (DPC) to produce a bathymetric database as reference for compiling maps (1:50.000) of marine geo-hazard.
Alessandro Bosman, Daniele Casalbore, Domenico Ridente, Cristian Montanaro, Francesco L. Chiocci   +4 more
doaj   +2 more sources

Enhanced Seafloor Topography Inversion Using an Attention Channel 1D Convolutional Network Based on Multiparameter Gravity Data: Case Study of the Mariana Trench

Journal of Marine Science and Engineering
Seafloor topography data are fundamental for marine resource development, oceanographic research, and maritime rights protection. However, approximately 75% of the ocean remains unsurveyed for bathymetry.
Qiang Wang, Ziyin Wu, Zhaocai Wu, Mingwei Wang, Dineng Zhao, Taoyong Jin, Qile Zhao, Xiaoming Qin, Yang Liu, Yifan Jiang, Puchen Zhao, Ning Zhang   +11 more
doaj   +1 more source

INTEGRASI DATA MULTIBEAM BATIMETRI DAN MOSAIK BACKSCATTER UNTUK KLASIFIKASI TIPE SEDIMEN

Jurnal Teknologi Perikanan dan Kelautan, 2017
Sistem multibeam echosounder tidak hanya memperoleh presisi tinggi dalam pengolahan data batimetri saja, tetapi juga mendapatkan resolusi tinggi dalam data backscatter strenght (BS) dasar perairan.
Anang Prasetia Adi, Henry M Manik, Sri Pujiyati   +2 more
doaj   +1 more source

Anti-Interference Bottom Detection Method of Multibeam Echosounders Based on Deep Learning Models

Remote Sensing
Multibeam echosounders, as the most commonly used bathymetric equipment, have been widely applied in acquiring seabed topography and underwater sonar images.
Junxia Meng, Jun Yan, Qinghe Zhang
doaj   +1 more source

Understanding satellite-derived bathymetry using Sentinel 2 imagery and spatial prediction models

GIScience & Remote Sensing, 2020
Optical satellite data is an efficient and complementary method to hydrographic surveys for deriving bathymetry in shallow coastal waters. Empirical approaches (in particular, the models of Stumpf and Lyzenga) provide a practical methodology to derive ...
Gema Casal, Paul Harris, Xavier Monteys, John Hedley, Conor Cahalane, Tim McCarthy   +5 more
doaj   +1 more source

Mapping of Cold-Water Coral Carbonate Mounds Based on Geomorphometric Features: An Object-Based Approach

Geosciences, 2018
Cold-water coral reefs are rich, yet fragile ecosystems found in colder oceanic waters. Knowledge of their spatial distribution on continental shelves, slopes, seamounts and ridge systems is vital for marine spatial planning and conservation.
Markus Diesing, Terje Thorsnes
doaj   +1 more source

A Method for Seafloor Topography Recognition and Segmentation Based on Bimodal Image Feature Fusion with YOLO11 Model

Journal of Marine Science and Engineering
Accurate recognition and segmentation of seafloor topographic units is of great significance for marine surveying and engineering applications. Efficient segmentation of multibeam bathymetric point clouds typically requires projecting them into two ...
Dekun Liang, Yang Cui, Shaohua Jin, Yihan Liang, Na Chen   +4 more
doaj   +1 more source

Analysis of three selected automated multibeam bathymetric filters in BeamWorX AutoClean Software

Nova Geodesia
The increasing volume of bathymetric data acquisition, driven by citizen science initiatives and advancements in hydrographic survey technologies, particularly multibeam and LiDAR sensors, necessitates automated data-cleaning procedures.
Daniel Devote BASIL
doaj   +1 more source

Development of Topological Correction Algorithms for ADCP Multibeam Bathymetry Measurements

Journal of the Environmental Sciences international, 2013
Acoustic Doppler Current Profilers (ADCPs) are increasingly popular in the river research and management communities being primarily used for estimation of stream flows. ADCPs capabilities, however, entail additional features that are not fully explored, such as morphological representation of river or reservoir bed based upon multi-beam depth ...
Dong-Su Kim, Sung-Kee Yang, Soo-Jeong Kim, Woo-Yul Jung   +3 more
openaire   +2 more sources

Multisource Mapping of Lagoon Bathymetry for Hydrodynamic Models and Decision-Support Spatial Tools: The Case of the Gambier Islands in French Polynesia

Geomatics
Precise lagoon bathymetry remains scarcely available for most tropical islands despite its importance for navigation, resource assessment, spatial planning, and numerical hydrodynamic modeling.
Serge Andréfouët, Oriane Bruyère, Thomas Trophime   +2 more
doaj   +1 more source