Benefits of multi-static on HF Radar networks

Whelan, Chad; Hubbard, Max

doi:10.23919/oceans.2015.7401991

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…The pattern of the receive antenna should be re-measured once a year or if data quality degrades (Kohut & Glenn, 2003;Laws et al, 2010). An antenna pattern is measured through a variety of methods: walking, boat, drone or AIS (Evans et al, 2015;Whelan et al, 2018). MARACOOS has implemented a real-time metric that checks for significant changes in measured pattern radial distributions over time based on a method developed by CODAR Ocean Sensors.…”

Section: Levelmentioning

confidence: 99%

Real-time quality assurance and quality control for a high frequency radar network

Roarty,

Updyke,

Nazzaro

et al. 2024

Front. Mar. Sci.

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This paper recommends end to end quality assurance methods and quality control tests for High Frequency Radar Networks. We focus on the network that is operated by the Mid Atlantic Regional Association Coastal Ocean Observing System (MARACOOS). The network currently consists of 38 radars making real-time measurements of the surface currents over the continental shelf for a variety of applications including search and rescue planning, oil spill trajectory modelling and providing a transport context for marine biodiversity observing networks. MARACOOS has been delivering surface current measurements to the United States Coast Guard (USCG) since May 2009. Data quality is important for all applications; however, since the USCG uses this surface current information to plan life-saving missions, delivery of the best quality data is crucial. We have mapped the components of the HF radar data processing chain onto the data levels presented in the NASA Earth Science Reference Handbook and have applied quality assurance and quality control techniques at each data level to achieve the highest quality data. There are approximately 400 High Frequency radars (HFRs) deployed globally and the presented techniques can provide a foundation for data quality checks and standardization of the data collected by the large number of systems operating today.

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Section: Levelmentioning

confidence: 99%

Real-time quality assurance and quality control for a high frequency radar network

Roarty,

Updyke,

Nazzaro

et al. 2024

Front. Mar. Sci.

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Multistatic estimation of high-frequency radar surface currents in the region of Toulon

et al. 2020

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The Alderney Race has been identified as a future site for the development of tidal energy, due to its bidirectional strong current reaching 5 m/s during spring tides. This hydrodynamics is very difficult to measure by in situ or remote sensing means. High-frequency coastal radars can provide a synoptic and near-real-time view of such a complex circulation, but the classical processing algorithms are not adapted to the extreme situation of strongly sheared currents. We propose an improved high-resolution direction-finding technique for the azimuthal processing of such radar data. It uses phased-array systems and combines the advantages of the usual beam-forming technique to eliminate many problems related to the distortion of Doppler spectra by extreme currents. The method is evaluated with a unique data set of radar measurements at two radar frequencies (13 and 24.5 MHz) and three spatial resolutions (200, 750, and 1500 m). The radar-based surface currents are analyzed in the light of a high-resolution numerical model and also compared with in situ measurements. While high azimuthal resolution can be achieved in this way, it is shown that the typical range resolutions of 750 and 1500 m are insufficient to account for the strong spatial variations of the surface current at some specific times and locations.

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A Study of a Novel High Frequency Radar Network for Ocean Dynamics Surveillance

Wan

Zhang

et al. 2020

2020 IEEE International Conference on Computational Electromagnetics (ICCEM)

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Benefits of multi-static on HF Radar networks

Cited by 5 publications

References 7 publications

Real-time quality assurance and quality control for a high frequency radar network

Real-time quality assurance and quality control for a high frequency radar network

Multistatic estimation of high-frequency radar surface currents in the region of Toulon

A Study of a Novel High Frequency Radar Network for Ocean Dynamics Surveillance

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