Institute of Transportation, MOTC

Title	Taichung Port High-Frequency Radar Signal Application Analysis (1/3) – Surface Current Observation Analysis
Dept	Transportation Technology Research Center
Year	2024
Month	3
Price	200
Summary	Maritime and land transportation is a focus of the Executive Yuan's Ministry of Transportation, which particularly emphasizes the policy goal of "constructing a safe transportation environment and implementing transportation risk management." The Institute of transportation, MOTC (referred to as "The Institute") is committed to establishing disaster prevention data for land transport and port facilities, strengthening intelligent environmental monitoring, and promoting the development of smart disaster prevention technologies to meet the disaster prevention. Therefore, to ensure the stability and reliability of marine meteorological services, the Institute is developing marine array radar technology and applications to obtain marine parameters from the interwoven ocean surface.     This project investigates the marine conditions in the port area and adjacent waters of Taichung Port using marine array radar stations. In order to maintain and improve the quality of radar observation products, the netCDF version 4 has been implemented as the radar format standard. And used the US Quality Assurance of Real-Time Oceanographic Data (QARTOD) manual to provide quality control procedures and harbor current observation data. Additionally, through recent literature review, this project has established that using machine learning, particularly deep learning, to automatically extract data has yielded more reliable radar quality control data. The use of CNN, RNN, and LSTM models has indeed gained widespread adoption, effectively reducing errors that may result , thereby improving data quality, and providing a direction for technical improvements.     The array radar stations established by the Institute have been operational for over three years. In order to continuously monitor the status of the radar stations, this project has implemented calibration procedures such as radar antenna status checks and beam synthesis calibration, resulting in improved radar observation quality. The results show that the observation results using different radar analysis methods in this project, except for the case of Typhoon KoiNu, have achieved high consistency in radar data for the other two typhoon scenarios (DokSuRi and HaiKui). Continuous observation of ocean surface currents in this project can provide  valuable research outcomes for navigation management units and port companies for vessel navigation and port operation management applications
Post date	2024/03/28