Results 31 to 40 of about 368 (173)

Space‐time adaptive processing algorithm based on hyper beamforming for ionospheric clutter suppression in small‐array high‐frequency surface wave radar

open access: yesIET Radar, Sonar &Navigation, Volume 17, Issue 4, Page 545-555, April 2023., 2023
This study proposes a hyper beamforming‐joint domain localised algorithm that can effectively remove the effect of ionospheric clutter for small‐array and low degree of freedom, which is applicable at low signal‐to‐clutter ratio. The algorithm can assist target detection and tracking under ionospheric clutter background.
Jiaming Li, Qiang Yang, Xin Zhang
wiley   +1 more source

Subinertial Sea Surface Heights Anomalies Estimated Using High Frequency Radar Surface Current Data in the Mississippi Bight

open access: yesJournal of Geophysical Research: Oceans, Volume 128, Issue 3, March 2023., 2023
Abstract Sea level studies in the Mississippi Bight (MSB) are less abundant than in other coastal waters of USA. This study investigates the subinertial (time scales >2 days) sea level anomalies in the MSB shelf. The diagnostics of the terms in the invariant form of the momentum equation were computed to determine which terms have the most influence on
Uchenna Nwankwo   +3 more
wiley   +1 more source

Ocean Circulation Near Cape Hatteras: Observations of Mean and Variability

open access: yesJournal of Geophysical Research: Oceans, Volume 127, Issue 12, December 2022., 2022
Abstract The convergence of different water masses on the shelf and along the shelfbreak, and cross‐isobath shelf‐open ocean exchanges contribute to the complex circulation near Cape Hatteras. We examine the mean and variability of these circulations using data from nine bottom‐mounted acoustic Doppler current profilers, deployed over the mid‐ to outer‐
Lu Han   +6 more
wiley   +1 more source

High-Frequency Radar Measurements with CODAR in the Region of Nice: Improved Calibration and Performance [PDF]

open access: yesJournal of Atmospheric and Oceanic Technology, 2021
AbstractWe report on the installation and first results of one compact oceanographic radar in the region of Nice for a long-term observation of the coastal surface currents in the northwest Mediterranean Sea. We describe the specific processing and calibration techniques that were developed at the laboratory to produce high-quality radial surface ...
Guerin C. -A.   +6 more
openaire   +3 more sources

HF Radars for Wave Energy Resource Assessment Offshore NW Spain

open access: yesRemote Sensing, 2021
Wave energy resource assessment is crucial for the development of the marine renewable industry. High-frequency radars (HF radars) have been demonstrated to be a useful wave measuring tool.
Ana Basañez, Vicente Pérez-Muñuzuri
doaj   +1 more source

Surface Current Variations and Hydrological Characteristics of the Penghu Channel in the Southeastern Taiwan Strait

open access: yesRemote Sensing, 2022
Coastal ocean dynamics application radar (CODAR) SeaSonde high-frequency (HF) radars deployed along the coast of Taiwan were used to reveal ocean surface current variations both hourly and through climatological seasons in the Penghu Channel (PHC ...
Po-Chun Hsu
doaj   +1 more source

Diurnal to Seasonal Variations in Ocean Chlorophyll and Ocean Currents in the North of Taiwan Observed by Geostationary Ocean Color Imager and Coastal Radar

open access: yesRemote Sensing, 2020
The waters in the north of Taiwan are located at the southern end of the East China Sea (ECS), adjacent to the Taiwan Strait (TS), and the Kuroshio region.
Po-Chun Hsu   +3 more
doaj   +1 more source

A Quality Control Method for Broad-Beam HF Radar Current Velocity Measurements

open access: yesJournal of Marine Science and Engineering, 2019
This paper describes a method to provide quality control for radial velocity maps derived from radar echo voltage cross spectra measured by broad-beam high frequency radars.
Belinda Lipa   +2 more
doaj   +1 more source

30 Years of CMTC and CODAR

open access: yes2008 IEEE/OES 9th Working Conference on Current Measurement Technology, 2008
The year 1978 saw the first of these CMTC meetings, at Newark, DE. At that initial symposium, CODAR was introduced to the current measurement community. The word CODAR had been coined by the author at NOAA two years earlier, to describe a novel HF radar technique that now routinely maps surface currents from hundreds of coastal sites in real time. This
D.E. Barrick
core   +2 more sources

Brahan Project High Frequency Radar Ocean Measurements: Currents, Winds, Waves and Their Interactions

open access: yesRemote Sensing, 2014
We describe radar measurements of waves, currents and winds made on the coast of northern Scotland during two 2013/14 winter storms, giving methods, results and interpretation.
Belinda Lipa   +5 more
doaj   +1 more source

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