查詢結果分析
來源資料
頁籤選單縮合
題 名 | 嘉南一帶近海海底地形之研究=A Study on the Bathymetry off the Chia-Nan Coastal Plain |
---|---|
作 者 | 曾信勝; 洪奕星; 郭南榮; 黃添祈; | 書刊名 | 地質 |
卷 期 | 17:1/2 民86.12 |
頁 次 | 頁107-120 |
分類號 | 351.926 |
關鍵詞 | 沈積物分佈; 傳輸型態; 海底地形圖; 曾文溪三角洲; 外傘頂洲; Sediment distribution; Transportation pattern; Bathymetry; Tsengwenchi delta; Waisanding barrier island; |
語 文 | 中文(Chinese) |
中文摘要 | 本文係利用精密測深儀EK500來收集嘉南一帶近海海域的水深資料,並繪製成海底地形圖。藉由海底地形的特徵以及沈積物的分佈型態,來幫助我們了解局部海域中底移質沈積物的搬運傳輸型態,並進而推論整個海岸環境的變遷。根據所得的水深資料,經SURFER 3-D繪圖軟體處理後,繪製出嘉南一帶近海海域的海底地形。就海岸線與海底地形的特徵而言,本研究海域內有兩個向西突出的關鍵點:外傘頂洲西南端及曾文溪三角洲凸頂,將嘉南--帶近海分成三個獨立傳輸系統的區間海域,由北而南依次是;外傘頂洲以北海域、外傘頂洲至曾文溪三角洲凸頂間海域,以及曾文溪三角洲凸頂以南海域。 |
英文摘要 | The subaqueous topography off Chia-nan coastal plain was mapped with the bathymetry data collected with a precision echo sounder (EK500). Characteristics of topography and sediment distribution pattern provide insights into the local transportation pattern of the bed-load sediment and the evolution trend in the coastal area. The bathymetry data were analyzed with the SURFER software to generate a 3-D contour map of the offshore region off the Chia-nan coastal plain. Based on the coastal geomorphology and the generated bathymetric map, two westward protruded cusps were recognized as the demarcation separating three morphodynamically distinctive coastal transportation zones. From north to south, these three independent coastal transportation zones are the offshore region northward of the Waisanding Barrier Island, the offshore region in between the Waisanding Barrier Island and the cuspate of the Tsengwenchi delta and the offshore region southward of the cuspate. |
本系統中英文摘要資訊取自各篇刊載內容。