Tony de Paolo

Tony de Paolo
University of California, San Diego | UCSD · Scripps Institution of Oceanography (SIO)

MS Computer and Systems Engineering

About

25
Publications
5,624
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328
Citations
Introduction
Tony de Paolo currently works at the Scripps Institution of Oceanography (SIO), University of California, San Diego. Tony does research in Electrical Engineering, Telecommunications Engineering and Electronic Engineering. Their most recent publication is 'X-Band Beacon-Receiver Array Evaporation Duct Height Estimation'.

Publications

Publications (25)
Article
Full-text available
Plain Language Summary Ocean circulation contains an interconnected cascade of fluid motions with lengthscales ranging from the basin scales (∼1,000 km), down to the smallest dissipative scales (∼10 mm). Resolving all these motions is prohibitively computationally expensive for a numerical ocean circulation model, even on the world's fastest superc...
Article
Conventional X-band radars constitute a convenient cheap source of measurements for deterministic sea wave profiling and prediction. The radar backscatter measurements, however, suffer from several imperfections such as the effects of larger waves shadowing smaller waves. In order to extract the wave profiles and build a reliable (spectral) sea mod...
Article
A method based on machine learning and image processing techniques has been developed to track the surface expression of internal waves in near-real time. X-Band radar scans are first preprocessed and averaged to suppress surface wave clutter and enhance the signal to noise ratio of persistent backscatter features driven by gradients in surface cur...
Article
The inner shelf, the transition zone between the surf zone and the mid shelf, is a dynamically complex region with the evolution of circulation and stratification driven by multiple physical processes. Cross-shelf exchange through the inner shelf has important implications for coastal water quality, ecological connectivity, and lateral movement of...
Article
Full-text available
In this study, we expand previous large eddy simulation (LES) modeling investigations of Langmuir turbulence (LT) to real ocean conditions using field observations collected under the multi-platform field campaign “Coupled Air–Sea Processes and Electromagnetic (EM) ducting Research (CASPER-East)”. The measurement site has strong local variabilities...
Article
Full-text available
Plain Language Summary The ocean surface appears rough because the wind applies a tangential force to the water, which deforms the surface, generating short and steep waves. These small waves, in turn, increase the friction felt by the wind as it blows across the ocean surface, thereby setting up a feedback mechanism that physically links, or coupl...
Article
Full-text available
Remote sensing of the complex interactions between bathymetry, tidal flow, and waves in coastal inlets provides high-resolution data sets that can be exploited to characterize the morphological variability of shallow ebb tidal deltas (ETD). Here we used observations from a mobile X-band radar platform to determine optimal conditions during which ra...
Article
Full-text available
This study takes on the challenge of resolving upper ocean surface currents with a suite of airborne remote sensing methodologies, simultaneously imaging the ocean surface in visible, infrared, and microwave bands. A series of flights were conducted over an air-sea interaction supersite established 63 km offshore by a large multi-platform CASPER-Ea...
Article
Full-text available
Recent experimental campaigns provided the opportunity to measure radiowave propagation and atmospheric conditions with the X-Band Beacon-Receiver array system. The system consists of vertical arrays of transmitters and receivers for measuring X-band propagation. Measurements near the sea surface can be used to obtain information regarding the refr...
Article
Full-text available
CASPER objective is to improve our capability to characterize the propagation of radio frequency (RF) signals through the marine atmosphere with coordinated efforts in data collection, data analyses, and modeling of the air-sea interaction processes, refractive environment, and RF propagation. The Coupled Air-Sea Processes and Electromagnetic duct...
Article
Full-text available
A new method for estimating current-depth profiles from observations of wavenumber-dependent Doppler shifts of the overlying ocean wave field is presented. Consecutive scans of marine X-band backscatter provide wave field measurements in the time-space domain that transform into the directional wavenumber-frequency domain via a 3D fast Fourier tran...
Article
Full-text available
The influence of wave-current interactions on time series of marine X-band radar backscatter maps at the mouth of the Columbia River (MCR) near Astoria, Oregon, is examined. The energetic wave environment at the MCR, coupled with the strong tidally forced currents, provides a unique test environment to explore the limitations in accurately determin...
Conference Paper
The surface current observations made by HF radar systems are increasingly being relied on to support decision-making by coastal ocean users and managers. Thus, the need for high quality data with defined error characteristics has never been higher. Building on previous efforts, this paper examines the use of ‘radial metrics’, the ancillary output...
Article
The collection and processing of X-Band radar backscatter in the frequency-wavenumber domain holds promise for extracting information about ocean surface currents and vertical shear. The ability to sense this information remotely has potentially significant impacts on scientific, navigational, and military operations, especially in areas of energet...
Article
Full-text available
Knowledge of the nearshore ocean environment is important for naval operations, including military and humanitarian applications. The models used by the US Navy for predicting waves and circulation in the coastal regions are presented here. The wave model of choice for coastal regions is the Simulating WAves Nearshore (SWAN) model, which predicts w...
Conference Paper
Radiowave propagation in the marine atmospheric boundary layer (MABL) remains a subject of research interest given the potential utility of the ducting propagation mechanism. Ducting propagation is highly dependent on atmospheric conditions; experiments that combine propagation measurements with detailed atmospheric characterization can offer oppor...
Article
Full-text available
This paper proposes a novel algorithm for retrieving the ocean wind vector from marine radar image sequences in real time. It is presented as an alternative to mitigate anemometer problems, such as blockage, shadowing, and turbulence. Since wind modifies the sea surface, the proposed algorithm is based on the dependence of the sea surface backscatt...
Article
Full-text available
Estimates of surface currents over the continental shelf are now regularly made using high-frequency radar (HFR) systems along much of the U.S. coastline. The recently deployed HFR system at the Martha's Vineyard Coastal Observatory (MVCO) is a unique addition to these systems, focusing on high spatial resolution over a relatively small coastal oce...
Article
A skill analysis of the Multiple Signal Characterization (MUSIC) algorithm used in compact-antennastyle HF radar ocean current radial velocity/ bearing determination is performed using simulation. The simulation is based upon three collocated antennas (two cross loops and a monopole with ideal gain patterns) in a geometry similar to the 25-MHz SeaS...
Conference Paper
Full-text available
Detailed analysis of the compact antenna array patterns and the internal signal processing within the MUSIC algorithm leads to a goodness-of-fit quality metric for the output radial current velocities and bearings produced by the HF RADAR system. To achieve this, some theory behind the MUSIC direction finding algorithm, describing its Direction of...

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Projects

Projects (2)
Project
X-band radar measurements of non-linear internal waves, and infra-gravity waves