Results 81 to 90 of about 23,689 (244)

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed, F. Velledits, I. Q. Mohammed, M. Alsuwaidi, H. Mansurbeg, F. Kristály, D. K. Ivanova, Eloi González‐Esvertit, A. Awdal   +8 more
wiley   +1 more source

Underwater Object Classification in Sidescan Sonar Images Using Deep Transfer Learning and Semisynthetic Training Data

IEEE Access, 2020
Sidescan sonars are increasingly used in underwater search and rescue for drowning victims, wrecks and airplanes. Automatic object classification or detection methods can help a lot in case of long searches, where sonar operators may feel exhausted and ...
Guanying Huo, Ziyin Wu, Jiabiao Li
doaj   +1 more source

Development of a Geo-spatial Analysis Methodology for Assessing the Adequacy of Hydrographic Surveying and Nautical Charts [PDF]

, 2012
IHO Publication C-55 (Status of Hydrographic Surveying and Nautical Charting Worldwide) contains information about the progress of hydrographic surveying and nautical charting for a country with navigable waters under its jurisdiction.
Alexander, Lee, Armstrong, Andy, Azuike, Chukwuma, Parrish, Christopher, Pe\u27eri, Shachak   +4 more
core   +1 more source

Evaluation and Verification of Bottom Acoustic Reverberation Statistics Predicted by the Point Scattering Model [PDF]

, 1992
The point scatteringmodel offers a parameterization of the reverberation probability density function (pdf) in terms of the coefficient of excess (kurtosis) and a coherent component represented by a harmonic process with random phase.
Alexandrou, Dimitri, de Moustier, Christian, Haralabus, G   +2 more
core   +2 more sources

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

Restoration 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, Phillipa McCormack, Nicole Shumway, Alexandra Wawryk   +3 more
wiley   +1 more source

Multifrequency seafloor acoustic backscatter as a tool for improved biological and geological assessments – updating knowledge, prospects, and challenges

Frontiers in Remote Sensing
Multibeam echosounders (MBES) have emerged as a primary tool for seafloor mapping over the past three decades. Technological advancements and improved data processing methods have increased the accuracy and spatial resolution of bathymetric measurements,
Pedro S. Menandro, Benjamin Misiuk, Benjamin Misiuk, Jens Schneider von Deimling, Alex C. Bastos, Craig J. Brown   +5 more
doaj   +1 more source

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

Restoration 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, Alex D. Rogers, Cassandra Roch, Jessica D. Gordon, Carlos M. Duarte, Laura F. Robinson, Rhian G. Waller, Christine Ferrier‐Pagès, Sandra Brooke, Marina Carreiro‐Silva, Kristopher Benson, Cherisse Du Preez, Stuart Banks, James P. Barry, Ralf T. S. Cordeiro, Erik Cordes, Sebastian Hennige, Thomas F. Hourigan, Marcelo V. Kitahara, Tina Kutti, Ann I. Larsson, Daniel M. Lauretta, Asako K. Matsumoto, Rebecca E. Ross, Eva Ramirez‐Llodra, Ana‐Belen Yánez‐Suárez, Anna Metaxas, Evan Edinger, Zoleka N. P. Filander, Erica Hendy, Maria Montseny, Salome Buglass, Maria L. de Carvalho Ferreira, Michelle L. Taylor   +33 more
wiley   +1 more source

Habitat mapping effort at the Olympic Coast National Marine Sanctuary – Current status and future needs [PDF]

, 2006
With elevating interest to establish conservation efforts for groundfish stocks and continued scrutiny over the value of marine protected areas along the west coast, the importance of enhancing our knowledge of seabed characteristics through mapping ...
Intelmann, Steven S.
core  

Evaluating the possible role of bottom currents and internal waves in shaping seafloor morphology in a mesophotic reef

Sedimentology, EarlyView.
ABSTRACT Mesophotic reefs are located in low light conditions which, depending on the region, are usually found in water depths greater than ~30 m. They are less affected by ocean warming than reefs found in shallower water depths and thus might become increasingly important for the sustainability of marine biodiversity.
Or M. Bialik, Henriette Wilckens, Omri Gadol, Aaron Micallef, Christian Betzler, Ole Johannes R. Sørensen, Hagai Nativ, Yizhaq Makovsky   +7 more
wiley   +1 more source

Frequency-Dependent Acoustic Reflection for Soil Classification in a Controlled Aquatic Environment

Applied Sciences
Seafloor soil classification is essential for marine engineering, environmental monitoring, and geological surveys. Traditional classification methods, such as physical sampling and acoustic backscatter analysis, have inherent limitations, including ...
Moshe Greenberg, Uri Kushnir, Vladimir Frid   +2 more
doaj   +1 more source