A5030308418- Geology and Paleoclimatology Research
- Geological formations and processes
- Underwater Acoustics Research
- Cryospheric studies and observations
- Maritime and Coastal Archaeology
- Marine and fisheries research
- Geophysical Methods and Applications
- Methane Hydrates and Related Phenomena
- earthquake and tectonic studies
- Geographic Information Systems Studies
- Marine and environmental studies
- Coastal and Marine Dynamics
- Oceanographic and Atmospheric Processes
- Coral and Marine Ecosystems Studies
- Remote Sensing and LiDAR Applications
- Planetary Science and Exploration
- Offshore Engineering and Technologies
- Climate change and permafrost
- Soil Geostatistics and Mapping
- Underwater Vehicles and Communication Systems
- Marine and coastal ecosystems
- Arctic and Antarctic ice dynamics
- Oil Spill Detection and Mitigation
- Land Use and Ecosystem Services
- Automated Road and Building Extraction
Marine Institute
2014-2024
University of Ulster
2011-2016
Istituto di Scienze Marine del Consiglio Nazionale delle Ricerche
2009
The Confined Morphologies Mapping (CoMMa) Toolbox, a novel ArcGIS Pro python toolbox expressly created for semi-automated seabed morphological mapping, is presented here. includes selection of tools the pre-processing, delineation and description confined features on digital elevation model (DEM) that are either negative or positive. CoMMa Toolbox addresses need flexible multi-faceted solution applicable to different mapping problems, also encapsulating re-interpreting existing...
In this study we applied for the first time Fully Convolutional Neural Networks (FCNNs) to a marine bathymetric dataset derive morphological classes over entire Irish continental shelf. FCNNs are set of algorithms within Deep Learning that produce pixel-wise classifications in order create semantically segmented maps. While they have been extensively utilised on imagery ecological mapping, their application elevation data is still limited, especially geomorphology realm. We employed...
ABSTRACT Understanding the pace and drivers of marine‐based ice‐sheet retreat relies upon integration numerical models with observations from contemporary polar ice sheets well‐constrained palaeo‐glaciological reconstructions. This paper provides a reconstruction last British–Irish Ice Sheet (BIIS) Atlantic shelf west Ireland during following Last Glacial Maximum (LGM). It uses marine‐geophysical data sediment cores dated by radiocarbon, combined terrestrial cosmogenic nuclide optically...
Abstract Please click here to download the map associated with this article. Multibeam echosounder data collected by Irish National Seabed Survey (INSS) between 2000 and 2001 in Rockall Trough have been used many projects analyze geomorphology sedimentary processes of margins Trough. However, due low spatial resolution 150–250 m amount artefacts still embedded publicly available data, geomorphological features overlooked. This paper shows that same multibeam dataset can provide more detailed...
The characterization of the seafloor is a fundamental first step in informing resource management, marine spatial planning, conservation, fisheries, industry and research. Integrated Mapping for Sustainable Development Ireland's Marine Resource (INFOMAR), national seabed mapping programme, delivers freely available, high-resolution imagery derived from multibeam echosounder data Irish Exclusive Economic Zone. European Union established Observation Data Network (EMODnet) Geology portal, which...
Abstract Shipwrecks are an integral part of our maritime archaeological landscape and associated with diverse societal cultural interests, yielding significant management challenges. Coupled hydrodynamic geomorphological processes significantly impact the effective in situ preservation these fragile sites. In this study, we assess sediment budget change triggers at metal‐hulled shipwrecks lost between 1875 1918, all located tidally dominated Irish Sea depths 26 84 m. This is conducted using...
Recent mapping programmes in Irish territorial waters, such as the National Seabed Survey and Integrated Mapping for Sustainable Development of Ireland's Marine Resource programme, have generated high resolution multibeam bathymetry, backscatter sediment sample datasets at an unprecedented coverage. Building upon previous glacial landforms on northwest continental shelf, a 1:225,000 scale map identifying contemporary bedforms has been produced between 54°40′N/56°10′N 10°2′W/6°45′W. The...
Abstract Cheko, a small lake located in Siberia close to the epicentre of 1908 Tunguska explosion, might fill crater left by impact fragment Cosmic Body. Sediment cores from lake’s bottom were studied support or reject this hypothesis. A 175‐cm long core, collected near center lake, consists an upper ∼1 m thick sequence lacustrine deposits overlaying coarser chaotic material. 210 Pb and 137 Cs indicate that transition lower occurred time Event. Pollen analysis reveals remains aquatic plants...
The large number of historic metal-hulled shipwrecks on the seabed is a major consideration for marine environment, heritage management and spatial planning. Their stability driven by linked hydro- sediment-dynamics, which in turn influence chemical corrosion biological encrustation. dynamism at underwater sites frequently expressed elaborate patterns depositional erosional features developed due to scour. These settings are complex, variable morphologies wrecks, diverse types geology...
Abstract Through Ireland's national seabed mapping programme, Integrated Mapping for the Sustainable Development of Marine Resource (INFOMAR), collaboration between Geological Survey Ireland and Institute continues to comprehensively map marine territory in high resolution. its work, programme builds on earlier Irish efforts, including National Seabed project producing products that support blue economy, European policy international efforts understand our global oceans. INFOMAR uses a...
The Irish Shelf Seabed Geomorphological Map (ISSGM) (v2023) presented here, is the first high-resolution geomorphological map of entire continental shelf. This large-scale mapping exercise took advantage vast INFOMAR multibeam echosounder dataset, and used a protocol semi-automated techniques to accurately rapidly extract seabed features. All previous efforts existing literature on shallow shelf geomorphology have also been collated integrated in map, critically evaluating interpretations....
The study of palaeo‐glacial landforms and sediments can give insights into the nature dynamics ice sheets. This is particularly case with regards to subglacial record, which challenging observe in contemporary glaciated settings hence remains only partially understood. hydrological system an essential component dynamics, where increased water pressure enhances motion sediment deformation, thus reducing ice‐bed contact. Tunnel valleys are large, sinuous, steep‐sided incisions that, together...
ABSTRACT A combination of multibeam bathymetry and backscatter, LiDAR altimetry bathymetry, satellite images, hydrodynamic model outputs were used to map the seafloor coastline Galway Bay (western Ireland). This is first time these multiple datasets have been integrated into a single combined geomorphological substrate map. The bay predominantly mud sand with bedrock outcropping extensively around coastline. main depositional features are dunes, while erosional scours bedrock. Hydrodynamic...
Abstract This study analyses seismic data to investigate the kinematic indicators within mass transport deposits (MTDs) of Donegal Barra Fan complex in Rockall Trough, along NW European continental margin. Five episodes mega-scale MTDs (DBF-01, -02, -03, -04 and -05) are identified. DBF-01 is largest MTD British margin, comprising 1907 km 3 sediments. Fold-and-thrusts were identified where they attain maximum thickness c. 300–380 ms TWT, but not at toe region. indicates that local erosion...
The frequency dependence of seabed backscatter has previously been assessed at static sites. While dependencies have identified, the restricted range types and issues absolute calibration limited inferences. Until recently measurements from underway mapping sonars (sidescans multibeams) predominantly a single center frequency, dictated by versus resolution compromise best suited for sonar altitude. With improved performance using FM pulses, depth over which specific is usable expanded....