Results 1 to 10 of about 1,828,500 (206)
Space Surveillance with High-Frequency Radar [PDF]
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]
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]
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
. 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
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
. 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
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]
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]
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
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

