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Space Surveillance with High-Frequency Radar [PDF]

open access: yesSensors
High-Frequency (HF) radar is well suited to the surveillance of low-earth-orbit space. For large targets, a small deployable HF radar is able to match the detection performance of much larger space surveillance radar systems operating at higher ...
Brendan Hennessy   +8 more
doaj   +7 more sources

The Global High Frequency Radar Network [PDF]

open access: yesFrontiers in Marine Science, 2019
Academic, government, and private organizations from around the globe have established High Frequency radar (hereinafter, HFR) networks at regional or national levels.
Hugh Roarty   +31 more
doaj   +9 more sources

Tsunami Arrival Detection with High Frequency (HF) Radar [PDF]

open access: yesRemote Sensing, 2012
Quantitative real-time observations of a tsunami have been limited to deep-water, pressure-sensor observations of changes in the sea surface elevation and observations of sea level fluctuations at the coast, which are essentially point measurements ...
Donald Barrick   +3 more
doaj   +2 more sources

Review Article: Global Monitoring of Snow Water Equivalent using High Frequency Radar Remote Sensing

open access: yesThe Cryosphere, 2021
. Seasonal snow cover is the largest single component of the cryosphere in areal extent, covering an average of 46 million square km of Earth's surface (31 % of the land area) each year, and is thus an important expression of and driver of the Earth’s ...
L. Tsang   +26 more
semanticscholar   +1 more source

Radar on RAIA: High frequency radars in the RAIA Observatory

open access: yesInstrumentation viewpoint, 2021
The RADAR ON RAIA project aims to update and extend beyond the Galician border the High Frequency (HF) radar network that has been operating since 2011 in the framework of the RAIA Observatory. The Project is allowing the establishment of a cross-border collaboration beyond the physical infrastructure itself, developing a sharing strategy of ...
Piedracoba Varela, Silvia   +22 more
openaire   +3 more sources

Evaluating High-Frequency radar data assimilation impact in coastal ocean operational modelling

open access: yesOcean Science (OS), 2021
. The impact of the assimilation of HFR (High-Frequency Radar) observations in a high-resolution regional model is evaluated, focusing on the improvement of the mesoscale dynamics. The study area is the Ibiza Channel, located in the Western Mediterranean
J. Hernández-Lasheras   +5 more
semanticscholar   +1 more source

On the Performance of High Frequency Radar in the Western Mediterranean During the Record-Breaking Storm Gloria

open access: yesFrontiers in Marine Science, 2021
Storm Gloria (January 19–24, 2020) hit the NW Mediterranean Sea with heavy rainfall, strong easterly winds, and very high waves, causing structural damages and 13 fatalities.
P. Lorente   +12 more
semanticscholar   +1 more source

High-Frequency Radar Ocean Current Mapping at Rapid Scale With Autoregressive Modeling [PDF]

open access: yesIEEE Journal of Oceanic Engineering, 2020
In this article, we use an autoregressive (AR) approach combined with a maximum entropy method (MEM) to estimate radial surface currents from coastal high-frequency radar (HFR) complex voltage time-series.
Baptiste Domps   +3 more
semanticscholar   +1 more source

Susceptibility of Commercial-Off-The-Shelf Sensors to IEMI using Pulse Modulated Signals [PDF]

open access: yesAdvances in Radio Science, 2023
The use of sensors has grown dramatically in recent years and many devices rely on the information they provide. The lack of proper security mechanisms available to control the use of sensors and the high degree of integration make them more vulnerable ...
L. Cesbron Lavau   +3 more
doaj   +1 more source

Variational interpolation of high-frequency radar surface currents using DIVAnd

open access: yesDeutsche Hydrographische Zeitschrift, 2021
DIVAnd (Data-Interpolating Variational Analysis, in n-dimensions) is a tool to interpolate observations on a regular grid using the variational inverse method. We have extended DIVAnd to include additional dynamic constraints relevant to surface currents,
A. Barth   +5 more
semanticscholar   +1 more source

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