本文提出海灘安全評估指標，評估海水浴場之遊憩安全區域，以波浪高度、海灘型態、潮汐高程、海域流場及海灘飛砂為評估海灘安全區域之評估指標，界定適合遊憩之海域範圍。
研究中顯示波浪高度、海灘型態及潮汐高程為遊憩過程中影響人身水位高度之重要指標。海域流場為遊憩過程中所在位置被改變之重要指標。海灘飛沙為遊憩區域過程中海灘空氣品質之重要指標，綜合考量上述影響因子，本文提出海灘評分方法藉以劃定遊憩區域。文中考慮海域同時為潮波流之影響，以MIKE 21 HD 水動力模式及SW 波浪模式模擬近岸之波、流特性。對於分析場址選擇則以台灣地區福隆海域為例進行探討，比較模式計算結果與林(2009)現場觀測資料。本文模擬現場觀測資料在裂流生成位置具有一致性，綜合上述評估方法對福隆海水浴場進行海灘安全遊憩區域探討，本文模式得知漲潮期間0米水位線下30m為海灘安全遊憩區域，退潮期間0米水位線下90m為海灘安全遊憩區域。

This paper presents the beach safety assessment indicators to assess the safe area for beach recreation. The sea area safe for reaction is defined by the beach security assessment indicators, including wave height, beach type, tidal elevation, sea velocity and beach shifting sand.
According to the results, wave height, beach type and tidal elevation are major important indicators affecting personal water height. Seawaters flow field is an important indicator of change in location during the recreation process, and beach shifting sand is an important indicator affecting the beach air quality in the recreation area. Based on the consideration of the above influencing factors, this paper proposes to delineate the recreation areas by beach rating method. In this paper, as seawaters affect the tidal wave and current, MIKE 21 HD hydrodynamic model and SW wave model are used to simulate the nearshore wave and current characteristics. With Fulong Beach in northern Taiwan as the site for analysis, this study compares the model computation results and the in-situ observation data proposed by Lin (2009). The simulation of in-situ observation data is consistent in terms of the split current generation position. In summary of the discussion on beach safe recreation area of Fulong Beach by applying the above assessment methods, it is found that the beach safe recreation area is 0-30m line during high tide and 0-90m line during low tide.

目錄
摘要 I
Abstract II
目錄 III
表目錄 V
圖目錄 VI
符號說明 X
第一章緒論 1
1.1 前言 1
1.2 研究動機與目的 3
1.3章節概述 5
第二章前人研究 6
第三章研究方法 9
3.1 海灘型態分析方法 9
3.2 裂流間隔分析 11
3.3 潮波流模式SW+HD理論 11
第四章海灘安全性評估 19
4.1 評估區域 19
4.2海氣象資料與特性 20
4.2-1 潮汐 20
4.2-2 海流 21
4.2-3 波流 23
4.2-4 海岸底質分布 26
4.3 沙洲特性分析 28
4.3-1 海灘型態 28
4.3-2 碎波型態 31
4.4裂流特性 32
4.4-1 裂流辨識 33
4.4-2 裂流發生間隔 95
4.4-3 裂流流速 98
4.5 海灘飛沙 110
4.6 安全評估 112
第五章結論與建議 119
6.1結論 119
6.2建議 120
第六章參考文獻 121

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