Results 11 to 20 of about 23,689 (244)

ASSESSMENT OF MULTIBEAM BACKSCATTER TEXTURE ANALYSIS FOR SEAFLOOR SEDIMENT CLASSIFICATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Recently, there have been many debates to analyse backscatter data from multibeam echosounder system (MBES) for seafloor classifications. Among them, two common methods have been used lately for seafloor classification; (1) signal-based classification ...
S. A. Samsudin, R. C. Hasan
doaj   +4 more sources

Marine Anoxia and Ocean Acidification During the End‐Permian Extinction

open access: yesGeophysical Monograph Series, Page 325-340., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Ying Cui   +4 more
wiley  

+2 more sources

A classification scheme for deep seafloor habitats [PDF]

open access: yesOceanologica Acta, 1999
A standard, universally useful classification scheme for deepwater habitats needs to be established so that descriptions of these habitats can be accurately and efficiently applied among scientific disciplines. In recent years many marine benthic habitats in deep water have been described using geophysical and biological data.
Greene, Hg   +7 more
openaire   +2 more sources

Indications of marine benthos occurrence from multi-spectral multi-beam backscatter data: a case study in the North Sea

open access: yesFrontiers in Earth Science, 2023
To facilitate the conservation of seafloor habitats and planning of offshore activities, there is a growing need for mapping marine benthos in an effective and efficient way.
Qian Bai   +3 more
doaj   +1 more source

An Object-Based Image Analysis Approach Using Bathymetry and Bathymetric Derivatives to Classify the Seafloor

open access: yesGeosciences, 2021
In this paper, object-based image analysis classification methods are developed that do not rely on backscatter in order to classify the seafloor. Instead, these methods make use of bathymetry, bathymetric derivatives, and grab samples for classification.
Leo Koop, Mirjam Snellen, Dick G. Simons
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

Using Habitat Classification to Assess Representativity of a Protected Area Network in a Large, Data-Poor Area Targeted for Deep-Sea Mining

open access: yesFrontiers in Marine Science, 2020
Extractive activities in the ocean are expanding into the vast, poorly studied deep sea, with the consequence that environmental management decisions must be made for data-poor seafloor regions.
Kirsty A. McQuaid   +7 more
doaj   +1 more source

Marine priority habitat mapping in a Mediterranean conservation area (Gyaros, South Aegean) through multi-platform marine remote sensing techniques

open access: yesFrontiers in Marine Science, 2022
The aim of this study is to present the results of the first complete marine habitat mapping through marine remote sensing techniques in Gyaros Island, a remote island in the Cyclades archipelago with a great historical and ecological value.
Xenophon Dimas   +8 more
doaj   +1 more source

A Bathymetry- and Reflectivity-Based Approach for Seafloor Segmentation

open access: yesGeosciences, 2018
A robust and flexible technique to segment seafloor acoustic mapping data by analyzing co-located bathymetric digital elevation models and acoustic backscatter mosaics is presented.
Giuseppe Masetti   +2 more
doaj   +1 more source

Subtidal Natural Hard Substrate Quantitative Habitat Mapping: Interlinking Underwater Acoustics and Optical Imagery with Machine Learning

open access: yesRemote Sensing, 2021
Subtidal natural hard substrates (SNHS) promote occupancy by rich benthic communities that provide irreplaceable and fundamental ecosystem functions, representing a global priority target for nature conservation and recognised in most European ...
Giacomo Montereale Gavazzi   +5 more
doaj   +1 more source

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