Evaluation of HF radar in mapping surface wave field in Taiwan Strait under winter monsoon

Duy Toan Dao, Hwa Chien, Jian Wu Lai, Yu Hsuan Huang, Pierre Flament

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A 27.75 MHz HF radar LERA MKIII system that consists of 16 Rx antennas in a linear array was installed at Taichung harbor at the western coast of Taiwan for monitoring surface wave and currents. Meanwhile, 8 km north-east of the LERA station is a long-range CODAR system, which is one among the 19 stations in the network around Taiwan Island that was setup and operated by Taiwan Ocean Research Institute. In the present study, data observed by the LERA and CODAR systems are analyzed using Barrick's theory and intercompared with in-situ measurements. About 40 days of simultaneous observations are used to assess the uncertainty of significant wave heights estimated using radar sea-echo from both systems under various sea-states. The error indexes are discussed with respect to the sea-states, Bragg frequencies and radar parameters of the two systems. The comparisons of the wave height evolution that obtained using single station demonstrates the potential of LERA system as a cost-effective tool for real-time monitoring of ocean wave field mapping.

Original languageEnglish
Title of host publicationOCEANS 2019 - Marseille, OCEANS Marseille 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728114507
DOIs
StatePublished - Jun 2019
Event2019 OCEANS - Marseille, OCEANS Marseille 2019 - Marseille, France
Duration: 17 Jun 201920 Jun 2019

Publication series

NameOCEANS 2019 - Marseille, OCEANS Marseille 2019
Volume2019-June

Conference

Conference2019 OCEANS - Marseille, OCEANS Marseille 2019
Country/TerritoryFrance
CityMarseille
Period17/06/1920/06/19

Keywords

  • high-frequency coastal radar
  • ocean wave mapping
  • phased array antenna system

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