Results 21 to 30 of about 56,657 (315)

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

Seafloor Segmentation Based on Bathymetric Measurements from Multibeam Echosounders Data [PDF]

open access: yes, 2003
Bathymetric data depicts the geomorphology of the seabottom and allows characterization of spatial distributions of apparent benthic habitats. The variability of seafloor topography can be defined as a texture.
Cutter, Randy G, Jr.   +2 more
core   +2 more sources

Methodology for Combining Data Acquired by Unmanned Surface and Aerial Vehicles to Create Digital Bathymetric Models in Shallow and Ultra-Shallow Waters

open access: yesRemote Sensing, 2021
This paper presents a method for integrating data acquired by unmanned surface vehicles and unmanned aerial vehicles. The aim of this work was to create a uniform bathymetric surface extending to the shoreline.
Jacek Lubczonek   +3 more
doaj   +1 more source

Bathymetric prediction from SEASAT altimeter data

open access: yesJournal of Geophysical Research: Oceans, 1983
The linear response function technique is used to analyze two 1300‐km tracks of SEASAT altimeter data and corresponding bathymetry in the Musician Seamounts region north of Hawaii. Bathymetry and geoid height are highly correlated in the 50‐ to 300‐km wavelength range.
Dixon, Timothy H.   +3 more
openaire   +3 more sources

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

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

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

Bathymetric Mapping Using IKONOS Multispectral Data

open access: yesGIScience & Remote Sensing, 2004
The objective of this research was to develop an accurate bathymetric map for an area around Roatan Island, Honduras using high-resolution multispectral IKONOS data based on a variation of a linear regression model. Linear regression models estimate water depths by regressing brightness values over known benthos (albeit non-homogeneous) and known ...
Deepak Mishra   +3 more
openaire   +1 more source

The Graham Volcanic Field Offshore Southwestern Sicily (Italy) Revealed by High-Resolution Seafloor Mapping and ROV Images

open access: yesFrontiers in Earth Science, 2019
The understanding of submarine monogenetic volcanic fields, especially if located near to coastal areas, is fundamental for volcanic risk assessment. Using high-resolution bathymetric data and ROV images, the submarine Graham volcanic field, located 40 ...
Danilo Cavallaro, Mauro Coltelli
doaj   +1 more source

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

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