Results 31 to 40 of about 24,901,573 (306)

An unusual finding of Sepietta oweniana (Cephalopoda: Sepiolidae) egg clutch

open access: yesScientia Marina, 2010
An unusual finding of Sepietta oweniana egg clutch at 544 m depth is described within an updating study of the reproductive aspects of the species in Sardinian waters.
Danila Cuccu   +5 more
doaj   +1 more source

Determining Atikhisar Reservoir’s Bathymetry from Landsat-5 TM Satellite Images Using the Stumpf Algorithm

open access: yesCoğrafya Dergisi, 2022
Determining the bathymetry of shallow waters is important for managing coastal areas, river basins, and water resources. However, economic and practical difficulties in collecting bathymetric data cause disruptions in bathymetric studies.
Derya Öztürk
doaj   +1 more source

An Automatic Algorithm to Extract Nearshore Bathymetric Photons Using Pre-Pruning Quadtree Isolation for ICESat-2 Data

open access: yesIEEE Geoscience and Remote Sensing Letters, 2023
The Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) equips with a novel photon-counting LiDAR system, which can generate underwater reflections in nearshore environments.
Guoping Zhang   +5 more
semanticscholar   +1 more source

Data-driven Loop Closure Detection in Bathymetric Point Clouds for Underwater SLAM [PDF]

open access: yesIEEE International Conference on Robotics and Automation, 2022
Simultaneous localization and mapping (SLAM) frameworks for autonomous navigation rely on robust data association to identify loop closures for back-end trajectory optimization. In the case of autonomous underwater vehicles (AUVs) equipped with multibeam
Jiarui Tan   +3 more
semanticscholar   +1 more source

Construction of High-Resolution Bathymetric Dataset for the Mariana Trench

open access: yesIEEE Access, 2019
Access to reliable and accurate bathymetric data is fundamental to many marine activities. This paper proposes a merge-normalization (MN) method that is suitable for multisource bathymetric data fusion in deep ocean areas, to solve the problem of ...
Yang Liu   +7 more
doaj   +1 more source

Preliminary study regarding the positioning of the bathymetric system on a research ship

open access: yesAnnals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2022
The topic of this preliminary study comes from the need to analyze the positioning of the multi-beam bathymetric system on a research vessel on the Danube River. Starting from the variants of bathymetric echo sound systems, they were discussed in advance
Gabriel Popescu   +2 more
doaj   +1 more source

Integration Data Model of the Bathymetric Monitoring System for Shallow Waterbodies Using UAV and USV Platforms

open access: yesRemote Sensing, 2022
Changes in the seafloor relief are particularly noticeable in shallow waterbodies (at depths up to several metres), where they are of significance for human safety and environmental protection, as well as for which the highest measurement accuracy is ...
Oktawia Lewicka   +9 more
semanticscholar   +1 more source

Understanding the Impact of Bathymetric Changes in the German Bight on Coastal Hydrodynamics: One Step Toward Realistic Morphodynamic Modeling

open access: yesFrontiers in Marine Science, 2021
The hydrodynamic response to morphodynamic variability in the coastal areas of the German Bight was analyzed via numerical experiments using time-referenced bathymetric data for the period 1982–2012.
Benjamin Jacob, Emil V. Stanev
doaj   +1 more source

Gridded bathymetric data

open access: yesEos, Transactions American Geophysical Union, 1982
A gridded bathymetric data base for the coastal United States, including Alaska and Hawaii, is now available for purchase from the National Geophysical Data Center (NGDC). The data base was compiled by NGDC, in cooperation with the U.S. Geological Survey, from original data supplied by the National Ocean Survey (NOS).
openaire   +1 more source

Comparative analysis of interpolation methods commonly used in bathymetric data generation

open access: yesWorld Journal of Advanced Research and Reviews
This research paper aims to provide a comparative analysis of interpolation methods for estimating bathymetric data. Accurate measurement of bathymetry is crucial for a variety of applications, including navigation, oceanography, and coastal management ...
M. Mahabub, M. Alam, M. Nuruzzaman
semanticscholar   +1 more source

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