Statistical relationship on between winds and waves at the Taipei Harbor (2015)
|關鍵字:||臺北港;風與波浪;統計特性;Taipei Harbor;Winds and Waves;Statistical Correlation|
A field observation pole for simultaneously measuring waves and winds at offshore seas of the Taipei harbor was set up by Harbor and Marine Technology Center. Two ADCPs below 5 and 10m from mean sea level are used to measure waves and currents and automatic-record anemometer is used to observe wind speed and wind direction at 10m high above seas. The project is to investigate the statistic properties of the wind and wave hourly data for 2010 and 2012 and to establish the relationship between both wind and wave data. In the early study of this three-year project, a comparison of wind distribution statistics at the pole and that at the tip of northern breakwater of the Taipei Harbor is made to study the difference of monthly and seasonal statistics. Onshore and offshore winds are classified from all wind data. The relationship between wave heights as well as periods and winds for each of four groups are established by regression analysis. Based on wind persistence, two wave forecasting models were developed for given initial wave height and subsequent wind speed. Four aims of this year project are (1) to investigate the properties of swell; (2) to propose a classification of onshore and offshore winds and seasonal winds based on wind persistence; (3) to establish a wave forecasting model from winds at single point or multi-points by regression analysis; (4) to establish a wave forecasting model from winds at single point or multi-points by adaptive neuro-fuzzy inference system, ANFIS. The results can be used for a fast forecasting wave system in the future.
|Appears in Collections:||Research Plans|
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