Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their Accuracy

HF radar systems form part of many operational coastal monitoring systems providing near-real-time surface currents for many useful applications. Although wave measurements have been possible with these systems for many years, they have not yet been adopted widely for operational monitoring because...

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Main Authors: Lucy R. Wyatt, J. J. Green
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/15/23/5536
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author Lucy R. Wyatt
J. J. Green
author_facet Lucy R. Wyatt
J. J. Green
author_sort Lucy R. Wyatt
collection DOAJ
description HF radar systems form part of many operational coastal monitoring systems providing near-real-time surface currents for many useful applications. Although wave measurements have been possible with these systems for many years, they have not yet been adopted widely for operational monitoring because they have not been thought to be sufficiently accurate or reliable. However, the value of such data is beginning to be appreciated, and this is motivating more work on wave measurement with HF radar systems with many more papers on accuracy assessment and data availability appearing in the literature. In this paper, the wave measurement capability, limitations, and differences between different radar types are reviewed, and methods to assess accuracy are discussed and applied to phased array HF radar data obtained from the University of Plymouth WERA radars using the Seaview Software inversion method during April and November 2012 compared with directional buoy data. Good accuracy over a range of different wave parameters will be demonstrated. Newly available single-radar inversions are shown to be less accurate than dual-radar inversions, although they still provide useful data, and ways to improve performance are discussed. Swell and wind–sea components in the directional spectra are identified, and qualitative agreement with buoy peak parameters is demonstrated. Recommendations are given on statistical methods for the validation of wave parameters.
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spelling doaj.art-bbee9a36bc7e4d4484478e2b333cf89b2023-12-08T15:24:57ZengMDPI AGRemote Sensing2072-42922023-11-011523553610.3390/rs15235536Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their AccuracyLucy R. Wyatt0J. J. Green1Seaview Sensing Ltd., Sheffield S10 3GR, UKSeaview Sensing Ltd., Sheffield S10 3GR, UKHF radar systems form part of many operational coastal monitoring systems providing near-real-time surface currents for many useful applications. Although wave measurements have been possible with these systems for many years, they have not yet been adopted widely for operational monitoring because they have not been thought to be sufficiently accurate or reliable. However, the value of such data is beginning to be appreciated, and this is motivating more work on wave measurement with HF radar systems with many more papers on accuracy assessment and data availability appearing in the literature. In this paper, the wave measurement capability, limitations, and differences between different radar types are reviewed, and methods to assess accuracy are discussed and applied to phased array HF radar data obtained from the University of Plymouth WERA radars using the Seaview Software inversion method during April and November 2012 compared with directional buoy data. Good accuracy over a range of different wave parameters will be demonstrated. Newly available single-radar inversions are shown to be less accurate than dual-radar inversions, although they still provide useful data, and ways to improve performance are discussed. Swell and wind–sea components in the directional spectra are identified, and qualitative agreement with buoy peak parameters is demonstrated. Recommendations are given on statistical methods for the validation of wave parameters.https://www.mdpi.com/2072-4292/15/23/5536HF radarcoastal monitoringsurface wavesdirectional spectrumsignificant wave heightwave parameters
spellingShingle Lucy R. Wyatt
J. J. Green
Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their Accuracy
Remote Sensing
HF radar
coastal monitoring
surface waves
directional spectrum
significant wave height
wave parameters
title Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their Accuracy
title_full Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their Accuracy
title_fullStr Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their Accuracy
title_full_unstemmed Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their Accuracy
title_short Developments in Scope and Availability of HF Radar Wave Measurements and Robust Evaluation of Their Accuracy
title_sort developments in scope and availability of hf radar wave measurements and robust evaluation of their accuracy
topic HF radar
coastal monitoring
surface waves
directional spectrum
significant wave height
wave parameters
url https://www.mdpi.com/2072-4292/15/23/5536
work_keys_str_mv AT lucyrwyatt developmentsinscopeandavailabilityofhfradarwavemeasurementsandrobustevaluationoftheiraccuracy
AT jjgreen developmentsinscopeandavailabilityofhfradarwavemeasurementsandrobustevaluationoftheiraccuracy