基于不動(dòng)點(diǎn)計(jì)算的岸線動(dòng)態(tài)分析方法
A Dynamic Analysis Method of Coastline Based on the Computation of Stationary Points
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摘要: 現(xiàn)有地理信息系統(tǒng)對(duì)于海岸線這一獨(dú)特線對(duì)象的動(dòng)態(tài)變化缺乏有效的管理和分析手段。針對(duì)該問題，該文引入不動(dòng)點(diǎn)的概念，基于現(xiàn)有地理信息系統(tǒng)設(shè)計(jì)了一種基于不動(dòng)點(diǎn)計(jì)算的岸線動(dòng)態(tài)分析方法，達(dá)到分析海岸淤進(jìn)或蝕退動(dòng)態(tài)變化的目的，進(jìn)而實(shí)現(xiàn)岸線動(dòng)態(tài)變化的自動(dòng)分析功能。文章對(duì)真實(shí)的黃河口岸線數(shù)據(jù)進(jìn)行了實(shí)驗(yàn)分析，證明了基于不動(dòng)點(diǎn)計(jì)算的岸線動(dòng)態(tài)分析方法的有效性。
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關(guān)鍵詞:
- 地理信息;岸線;淤進(jìn);蝕退;不動(dòng)點(diǎn)
Abstract: Current GISs lack efficient management and analysis functions for coastline dynamic changes for coastline is a special line object. In order to resolve this problem, the concept of stationary points is introduced, and a coastline analysis method is put forward based on current GISs. Through analyzing stationary points, the dynamic changes of coastal siltation or erosion can be obtained. Thus, the analysis of coastline changes can be accomplished automatically. In this paper, experimental analysis is performed on the real coastline data of Yellow River Mouth, which turns out that this dynamic analysis method is valid. -
龐家珍，姜明星，李福林. 黃河口徑流、泥沙、海岸線變化及其發(fā)展趨勢(shì). 海洋湖沼通報(bào)，2000，(4)：16. .[5]El-Raey M, Sharaf El-Din S H, Khafagy A A, et al.. Remote sensing of beach erosion/accretion patterns along Damietta-Port Said Shoreline, Egypt[J].International Journal of Remote Sensing.1999, 20(6):1087-[6]趙銳. 長(zhǎng)江三角洲地區(qū)衛(wèi)星遙感動(dòng)態(tài)決策咨詢系統(tǒng). 中國(guó)航天，1999，(4)：6.7. -
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