A5037776377- Underwater Acoustics Research
- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Geological and Geochemical Analysis
- Flow Measurement and Analysis
- earthquake and tectonic studies
- Engineering Applied Research
- Geological Modeling and Analysis
- Oceanographic and Atmospheric Processes
- Geological formations and processes
- Land Use and Ecosystem Services
- Maritime and Coastal Archaeology
- Archaeology and ancient environmental studies
- Advanced Wireless Communication Techniques
- Marine and fisheries research
- High-pressure geophysics and materials
- Maritime Navigation and Safety
- Energy Efficient Wireless Sensor Networks
- Mobile Ad Hoc Networks
- PAPR reduction in OFDM
- Geophysics and Gravity Measurements
- Arctic and Antarctic ice dynamics
- Offshore Engineering and Technologies
- Radio, Podcasts, and Digital Media
Utrecht University
2024
University of New Hampshire at Manchester
2014-2021
University of New Hampshire
2014-2020
University of Leeds
2017
University of Nottingham
2015
The University of Texas at Austin
2010
The University of Texas at Dallas
2009
University of Hawaiʻi at Mānoa
1997-2008
University of Hawaii System
1995-2007
Sandia National Laboratories California
2002
A digital representation of ocean floor topography is essential for a broad variety geological, geophysical and oceanographic analyses modeling. In this paper we present new version the International Bathymetric Chart Arctic Ocean (IBCAO) in form grid on Polar Stereographic projection with cell spacing 2 × km. The IBCAO, which has been derived from an accumulated database available bathymetric data including recent years multibeam mapping, significantly improves our portrayal seafloor.
Bathymetry (seafloor depth), is a critical parameter providing the geospatial context for multitude of marine scientific studies. Since 1997, International Bathymetric Chart Arctic Ocean (IBCAO) has been authoritative source bathymetry Ocean. IBCAO merged its efforts with Nippon Foundation-GEBCO-Seabed 2030 Project, goal mapping all oceans by 2030. Here we present latest version (IBCAO Ver. 4.0), more than twice resolution (200 × 200 m versus 500 m) and individual depth soundings...
Within the endemic invertebrate faunas of hydrothermal vents, five biogeographic provinces are recognized. Invertebrates at two Indian Ocean vent fields (Kairei and Edmond) belong to a sixth province, despite ecological settings invertebrate-bacterial symbioses similar those both western Pacific Atlantic vents. Most organisms found these have evolutionary affinities with faunas, but shrimp that ecologically dominates vents closely resembles its Mid-Atlantic counterpart. These findings...
We report measurements of U‐series disequilibria, Sr, Nd, Hf, and Pb isotopic compositions major trace element abundances in a suite well‐located, off‐axis MORBs that span the East Pacific Rise (EPR) ridge crest from 9°48′–52′N across it for ∼4 km on either side. The geological context samples are well constrained as they were collected by submersible an area has been extensively imaged remote sensing techniques. Hf 208 Pb/ 206 N‐MORB identical to axial lavas this same region, suggesting...
Abstract New imagery of ∼14 100 km 2 seafloor along a 640 stretch the Alaska and Beaufort margins (ABM) in water depths from 250 to 2800 m depicts repetitive association glaciogenic bedforms (lineations iceberg scours), broad erosional bathymetric features adjacent downslope turbidite gullies. These have styles, orientations similar discovered earlier on Chukchi Borderland, up 800 northwest ABM. Lineations occur across surface flattened bench interpreted formed by an ice shelf sliding...
Accurate seafloor maps serve as a critical component for understanding marine ecosystems and guiding informed ocean management decisions. From 2004-2015, vast region of the Atlantic Ocean continental margin offshore United States has been systematically mapped using multibeam sonars. This work was done in support U.S. Extended Continental Shelf (ECS) Project baseline characterization canyons, but question remains to relevance these margin-wide data sets conservation decisions pertaining...
Abstract Knowledge about seafloor depth, or bathymetry, is crucial for various marine activities, including scientific research, offshore industry, safety of navigation, and ocean exploration. Mapping the central Arctic Ocean challenging due to presence perennial sea ice, which limits data collection icebreakers, submarines, drifting ice stations. The International Bathymetric Chart (IBCAO) was initiated in 1997 with goal updating bathymetric portrayal. project team has since released four...
A tool to estimate the ray-tracing component of surveyed depth uncertainty was created and made publicly available through Web services a geographic information system. The estimation is based on spatial variability analysis at time validity two popular, global-scope sources oceanographic environmental data. has potential applications in all phases ocean mapping, from survey planning data collection processing.
A new technique for measuring conductive heat flow from unsedimented volcanic rocks on the sea floor has been tested two eruption sites in NE Pacific. This consists of isolating surficial water using water‐saturated urethane foam as an insulating thermal blanket. The gradient transferred outcrop to blanket is a quantitative measurement that takes place areas. We deployed blankets at 13 1993 and 1996 Juan de Fuca/Gorda Ridge flows found (1) factor 10 decrease over period 12 months CoAxial...
Software simulation has often been used to evaluate proposed protocols for wireless devices. Simulation allows rapid development and testing, but does not provide a realistic RF environment. To compensate this, field experiments are performed. However, problems encountered during can be difficult locate correcting on-site time-consuming. Emulations attempt the advantages of without suffering disadvantages both. This demo provides an overview hardware, software, emulation capabilities ASSERT, testbed.
To efficiently map the oceans in support of SeaBed 2030 project and other mapping programs, newly collected lines should ideally not duplicate existing data but slightly overlap prior coverage. BathyGlobe GapFiller is a software tool designed to planning for transit area mapping. At its core an algorithm that adjusts so they by specified amount. Two novel methods accomplishing this are presented. The better solution uses custom detecting filter. While it more computationally intensive than...
Abstract. A global geographic grid system (Global GGS) is here introduced to support the display of gridded bathymetric data at whatever resolution available in a visually seamless manner. The Global GGS combines quadtree metagrid hierarchy with compatible grids. Metagrid nodes define boundaries Data grids are regular depth values, coarse used represent sparse and finer high-resolution data. Both metagrids defined coordinates allow broad compatibility widest range geospatial software...