Results 111 to 120 of about 28,411 (301)

Acoustic signatures of the seafloor: Tools for predicting grouper habitat [PDF]

open access: yes, 2006
Groupers are important components of commercial and recreational fisheries. Current methods of diver-based grouper census surveys could potentially benefit from development of remotely sensed methods of seabed classification.
Eklund, Anne-Marie   +3 more
core  

The high-frequency backscattering angular response of gassy sediments: Model/data comparison from the Eel River Margin, California [PDF]

open access: yes, 2002
A model for the high-frequency backscatter angular response of gassy sediments is proposed. For the interface backscatter contribution we adopted the model developed by Jackson et al. @J. Acoust. Soc. Am. 79, 1410–1422 ~1986!#, but added modifications to
Driscoll, Neal   +3 more
core   +2 more sources

Seafloor mapping from high-density satellite altimetry

open access: yesMarine Geophysical Researches, 1996
In this paper, we publish the results of a bathymetry survey based on the processing of satellite altimetry data. Data gathered from GEOSAT (Geodetic Mission), SEASAT, ERS-1 and TOPEX/POSEIDON satellites were processed to recover the seafloor topography over new seamounts in a test area located in the south central Pacific.
Baudry, Nicolas, Calmant, Stéphane
openaire   +2 more sources

Opportunities for targeted, small‐scale law reform in marine and coastal restoration

open access: yesRestoration Ecology, EarlyView.
Across the globe, law reform is being considered as a mechanism to support, guide, and encourage the upscaling of ecological restoration. While high‐profile examples like the European Nature Restoration Law show the value of large‐scale law reform, this scale of law reform will not be feasible or politically tractable everywhere.
Justine Bell‐James   +3 more
wiley   +1 more source

Geohazard features of the Eastern Sicily

open access: yesJournal of Maps
Eastern Sicily is characterised by fast tectonic uplift, intricate GPS-derived velocity fields, and significant seismic activity. Mount Etna, the largest subaerial active volcano in Europe, dominates the landscape, influencing the development of large ...
F. L. Chiocci   +27 more
doaj   +1 more source

The Nippon Foundation—GEBCO Seabed 2030 Project: The Quest to See the World’s Oceans Completely Mapped by 2030

open access: yesGeosciences, 2018
Despite many of years of mapping effort, only a small fraction of the world ocean’s seafloor has been sampled for depth, greatly limiting our ability to explore and understand critical ocean and seafloor processes.
Larry Mayer   +8 more
doaj   +1 more source

Observations of Backscatter from Sand and Gravel Seafloors Between 170-250 kHz [PDF]

open access: yes, 2015
Interpreting observations of frequency-dependence in backscatter from the seafloor offers many challenges, either because multiple frequencies are used for different observations that will later be merged or simply because seafloor scattering models are ...
Ward, Larry G., Weber, Thomas C.
core   +1 more source

Critical knowledge gaps in the conservation and restoration of cold‐water corals

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Critical knowledge gaps hamper effective conservation of threatened cold‐water coral (CWC) ecosystems, facing cumulative anthropogenic and climate pressures. This review provides a strategic roadmap for urgent, informed intervention.
Qian Liu   +33 more
wiley   +1 more source

Specialized Committees of International Organizations an Important Source of Organizational Autonomy

open access: yesRegulation &Governance, EarlyView.
ABSTRACT Assigning the preparation of decisions to specialized committees composed of member state representatives is a widespread response to the ‘governor's dilemma’, that is, the tension between competence and control, in international organizations (IOs). We theorize a causal mechanism referring to self‐selection and agenda‐setting effects and show
Michael Giesen   +3 more
wiley   +1 more source

Assessment of habitat representation across a network of marine protected areas with implications for the spatial design of monitoring.

open access: yesPLoS ONE, 2015
Networks of marine protected areas (MPAs) are being adopted globally to protect ecosystems and supplement fisheries management. The state of California recently implemented a coast-wide network of MPAs, a statewide seafloor mapping program, and ...
Mary Young, Mark Carr
doaj   +1 more source

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