ABSTRACT

The Coastal Ocean Monitoring Center (COMC) was established to assist the government to develop and operate the hydrological monitoring network around Taiwan coast. Currently, the network consists of eight data buoys, one pile station, twelve coastal meteorological stations and seven tidal stations. Real time observation data are provided for coastal hazard warning system and coastal zone management applications. To assure the data correctness, a data quality-check (QC) program is developed to provide the systematical and timely examination on the measurements. This paper presents the automatic data quality check method for checking the wave statistical parameters.

INTRODUCTION

Taiwan Island locates in the subtropical region, where severe seas triggered by typhoons in summer seasons often result into terrible losses of the human life and property in the coastal areas. The Coastal Ocean Monitoring Center (COMC) was established within the National Cheng Kung University in 1997 to assist the government to develop and operate a hydrological monitoring network around Taiwan coast. Currently, the network consists of eight buoys stations, one pile station, twelve coastal meteorological stations and seven tidal stations. The location map of the stations is shown in Figure 1. The buoy station, a 2.5-meter wave-following discus buoy is deployed as shown in Figure 2. The buoy is equipped with a tri-axial accelerometer to measure surface wave particle movements for the estimation of directional wave spectrum. At shallow-water pile stations located in areas of mild slope and sandy seabed, an ultrasonic wave gauge array is installed to provide measurements of sea surface displacements. The in-situ meteorological and oceanographic observations from the network provide the government with critical information to prepare severe weather warnings. Long-term data from the network are used to calibrate and validate marine weather forecasting models and to develop design criteria for coastal structures.

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