A5071740624- Oceanographic and Atmospheric Processes
- Geophysics and Gravity Measurements
- Climate variability and models
- Ocean Waves and Remote Sensing
- Arctic and Antarctic ice dynamics
- Tropical and Extratropical Cyclones Research
- Cell Image Analysis Techniques
- Advanced Fluorescence Microscopy Techniques
- Image Processing Techniques and Applications
- Marine and coastal ecosystems
- Marine and fisheries research
- Spatial Neglect and Hemispheric Dysfunction
- Planetary Science and Exploration
- Motor Control and Adaptation
- AI in cancer detection
- Peripheral Nerve Disorders
- Visual perception and processing mechanisms
- Muscle activation and electromyography studies
- Musculoskeletal pain and rehabilitation
- Geology and Paleoclimatology Research
- Advanced Computational Techniques and Applications
- Maritime Navigation and Safety
- Robotic Path Planning Algorithms
- Hydrocarbon exploration and reservoir analysis
- Advanced Electron Microscopy Techniques and Applications
University of Tennessee at Knoxville
2023
University of San Francisco
2020-2021
Osys Technology
2014
National Oceanography Centre
2003-2013
University of Southampton
2010
Royal Holloway University of London
2010
University of Wales
2004
Aberystwyth University
2004
Bangor University
1997-2002
University of Otago
1999-2001
Abstract First results are presented for ocean surface wind speed retrieval from reflected GPS signals measured by the low Earth orbiting UK TechDemoSat‐1 satellite (TDS‐1). Launched in July 2014, TDS‐1 provides first new spaceborne Global Navigation Satellite System‐Reflectometry (GNSS‐R) data since pioneering UK‐Disaster Monitoring Mission (UK‐DMC) experiment 2003. Examples of onboard‐processed delay‐Doppler maps reveal excellent quality winds up to 27.9 m/s. Collocated Advanced...
Knowledge of sea level extremes is important for coastal planning purposes. Temporal changes in the may indicate forcing parameters, most probably storm surges. Sea and their spatial temporal variability southern Europe are explored on basis 73 tide gauge records from 1940. This study uses all data available to infer risks at coast caused by extreme levels. Extreme values 250 cm observed Atlantic coasts with smaller Mediterranean where, exception Strait Gibraltar Adriatic Sea, less than 60...
Abstract Climate-related sea level changes in the world coastal zones result from superposition of global mean rise due to ocean warming and land ice melt, regional caused by non-uniform thermal expansion salinity changes, solid Earth response current water mass redistribution associated gravity change, plus small-scale processes (e.g., shelf currents, wind & waves fresh input rivers, etc.). So far, satellite altimetry has provided gridded time series up 10–15 km coast only, preventing...
Abstract For nearly 30 years, space-based radar altimetry has been routinely measuring changes in sea level at global and regional scales. But this technique designed for the open ocean does not provide reliable data within 20 km to coast, mostly due land contamination echo vicinity of coast. This problem can now be overcome through dedicated reprocessing, allowing retrieval valid 0-20 band from then access novel information on change world coastal zones. Here we present anomalies associated...
Satellite altimeter (Topex/Poseidon, 1992–2001) and tide-gauge measurements are used to explore the relationship of sea level North Atlantic neighbouring seas coastlines Oscillation (NAO). Altimeter suggest significant gyre-scale influence NAO in Atlantic, but also stronger influences on continental shelf inland Europe. A north–south dipole sea-level anomaly consistent with a hydrostatic response pressure is evident, there large non-hydrostatic effects. The strongest European Shelf...
Contextual cues such as linear perspective and relative size can exert a powerful effect on the perception of objects. This fact is demonstrated by illusory effects that be induced (e.g., Ponzo railway track Titchener circles illusions). Several recent studies have reported, however, visual illusions based little or no influence visuomotor mechanisms used to guide hand action. Furthermore, evidence this sort has been cited in support distinction between control In current study, authors...
Within the framework of a Tyndall Centre research project, sea level and wave changes around UK in North Sea have been analysed. This paper integrates results this project. Many aspects contribution Atlantic Oscillation (NAO) to height resolved. The NAO is major forcing parameter for sea-level variability. Strong positive response increasing was observed shallow parts Sea, while slightly negative found southwest part UK. cause strong mainly increased westerly winds. increase during last...
Abstract. Hourly sea level data from tide gauges and a barotropic model are used to explore the spatial temporal variability of extremes in Mediterranean Sea Atlantic coasts Iberian peninsula on seasonal time scales. Significant is identified observations all seasons. The stations show larger extreme values than primarily due tidal signal. When signal removed most have maximum less 90 cm occurring winter or autumn. maxima spring summer 60 stations. wind atmospheric forcing contributes about...
Under the umbrella of European Space Agency (ESA) StarTiger program, a rapid prototyping study called Seeker was initiated. A range partners from space and nonspace sectors were brought together to develop prototype Mars rover system capable autonomously exploring several kilometers highly representative terrain over three‐day period. This paper reports on our approach final field trials that took place in Atacama Desert, Chile. Long‐range navigation associated remote are new departure for...
The thermosteric contribution of the North Atlantic Oscillation (NAO) to Sea sea-level for winter period is investigated. Satellite sea surface temperature as well in situ measurements are used define sensitivity water NAO determine trends temperature. about 0.85 degrees C per unit NAO, which results changes 1-2 cm NAO. temperatures strongly time-dependent. Model data from a two-dimensional hydrodynamic tide+surge model combination with estimated anomalies explain observed and, particular,...
Abstract The Mernoo Saddle is situated c. 100 km east of Banks Peninsula, Canterbury, New Zealand at 44°S 174°E. separates the South Island from an underwater ridge known as Chatham Rise. Rise acts a partial barrier to flow subantarctic surface water mass (SAW) and subtropical (STW), which are part global Subtropical Front extending around Southern Ocean. This study examined variability masses flowing through using 3‐year data set Advanced Very High Resolution Radiometer (AVHRR) Sea Surface...
Abstract Ocean fronts are narrow zones of intense dynamic activity that play an important role in global ocean–atmosphere interactions. Owing to their highly variable nature, both space and time, they notoriously difficult features adequately sample using traditional situ techniques. In this paper, the authors propose a new statistical modeling approach for detecting monitoring ocean from Advanced Very High Resolution Radiometer (AVHRR) SST satellite images builds on previous “front...
Work has been undertaken at the University of Wales, Aberystwyth in area localisation and navigation aerial vehicles (aerobots) large unstructured environments (i.e. natural outdoors). The method presented this paper was developed for planetary exploration with an emphasis on Mars, but could also be used Earth. Mars atmosphere, which is dense enough to allow use aerobots, orbiter laser altimeter (MOLA) provided low-resolution topographical map surface. MOLA data scenery flight-gear open...