Results 51 to 60 of about 42,717 (194)

Observation of Statistical Characteristics and Vertical Structures of Surface Warm Cyclonic Eddies and Cold Anticyclonic Eddies in the North Pacific Subtropical Countercurrent Region

open access: yesJournal of Marine Science and Engineering
Conventional wisdom about mesoscale eddies is that cyclonic (anticyclonic) eddies are commonly associated with cold(warm) surface cores. Nevertheless, plenties of surface warm cyclonic eddies (WCEs) and cold anticyclonic eddies (CAEs) in the North ...
Yaowei Ma   +4 more
doaj   +1 more source

Critical tipping points in dung beetle communities: Implications for conservation in the Atlantic Forest biome

open access: yesInsect Conservation and Diversity, EarlyView.
Minor land‐use changes consistently lead to abrupt biodiversity shifts across all diversity dimensions, favoring generalist dung beetle species while excluding sensitive specialists. These shifts are observed at lower environmental change rates than previously considered, with significant changes apparent after just 25% habitat loss.
Paula Ribeiro Anunciação   +4 more
wiley   +1 more source

SIGAN: A Multi-Scale Generative Adversarial Network for Underwater Sonar Image Super-Resolution

open access: yesJournal of Marine Science and Engineering
Super-resolution (SR) is a technique that restores image details based on existing information, enhancing the resolution of images to prevent quality degradation.
Chengyang Peng   +3 more
doaj   +1 more source

Next Edition of IHO S-57 (Edition 4): Much more than ENCs [PDF]

open access: yes, 2005
The primary goal for the next edition of S-57 (Edition 4) is to support a greater variety of hydrographic-related digital data sources, products, and customers.
Alexander, Lee   +2 more
core   +1 more source

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

open access: yesJournal of Fish Biology, EarlyView.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros   +6 more
wiley   +1 more source

An Automatic Generalization Method of a Block-Based Digital Depth Model Based on Surface Curvature Features

open access: yesJournal of Marine Science and Engineering
Addressing the limitations of current multi-scale seabed terrain construction methods for a Digital Depth Model (DDM) and the low computational efficiency of automatic generalization algorithms, this paper draws on the concept of curvature simplification
Dong Wang   +4 more
doaj   +1 more source

The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?

open access: yesMarine Ecology, EarlyView.
ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie   +2 more
wiley   +1 more source

DS-SIAUG: A Self-Training Approach Using a Disrupted Student Model for Enhanced Side-Scan Sonar Image Augmentation

open access: yesSensors
Side-scan sonar is a principal technique for subsea target detection, where the quantity of sonar images of seabed targets significantly influences the accuracy of intelligent target recognition.
Chengyang Peng   +3 more
doaj   +1 more source

Designing a Semantically Rich Visual Iinterface for Cultural Digital Libraries Using the UNESCO Multilingual Thesaurus [PDF]

open access: yes, 2010
This paper reports on the design of a visual user interface for the UNESCO digital portal. The interface makes use of the UNESCO multilingual thesaurus to provide visualized views of terms and their relationships and the way in which spaces associated ...
Bieber, Mark   +5 more
core  

Preliminary results on epidemiology of coconut lethal yellowing in Ghana [PDF]

open access: yes, 2009
Epidemiological studies are of major importance in understanding the determinants of plant diseases in order to control the risks of their spreading. A research programme on the epidemiology of coconut lethal yellowing, or Cape Saint Paul Wilt Disease ...
Bonnot, François   +4 more
core   +1 more source

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