海洋通报
海洋通報
해양통보
MARINE SCIENCE BULLETIN
2013年
6期
668-677
,共10页
倪文斐%汪亚平%邹欣庆%高建华
倪文斐%汪亞平%鄒訢慶%高建華
예문비%왕아평%추흔경%고건화
南黄海%潮流通道%沉积动力%水沙输运%地形演变
南黃海%潮流通道%沉積動力%水沙輸運%地形縯變
남황해%조류통도%침적동력%수사수운%지형연변
southern Yellow Sea%tidal channel%sediment dynamics%water and sediment transport%geomorphology change
根据2011年7月3日-4日在苦水洋海域获取的全潮水文资料和底质样品,计算潮周期水、沙输运率,分析了其沉积动力特征。基于1979年历史海图资料与最新测量的水道地形进行对比,进一步探讨苦水洋水道的地形演变过程及稳定性。结果表明,苦水洋潮流作用较强,水道内沉积物主要以悬移质形式输运,在近岸段沿水道向岸净输沙,但在(121.606o E,33.029oN)以东以向海输运为主。近三十多年来,苦水洋西水道深槽与口门北水道逐渐贯通,水道整体趋于顺直。
根據2011年7月3日-4日在苦水洋海域穫取的全潮水文資料和底質樣品,計算潮週期水、沙輸運率,分析瞭其沉積動力特徵。基于1979年歷史海圖資料與最新測量的水道地形進行對比,進一步探討苦水洋水道的地形縯變過程及穩定性。結果錶明,苦水洋潮流作用較彊,水道內沉積物主要以懸移質形式輸運,在近岸段沿水道嚮岸淨輸沙,但在(121.606o E,33.029oN)以東以嚮海輸運為主。近三十多年來,苦水洋西水道深槽與口門北水道逐漸貫通,水道整體趨于順直。
근거2011년7월3일-4일재고수양해역획취적전조수문자료화저질양품,계산조주기수、사수운솔,분석료기침적동력특정。기우1979년역사해도자료여최신측량적수도지형진행대비,진일보탐토고수양수도적지형연변과정급은정성。결과표명,고수양조류작용교강,수도내침적물주요이현이질형식수운,재근안단연수도향안정수사,단재(121.606o E,33.029oN)이동이향해수운위주。근삼십다년래,고수양서수도심조여구문북수도축점관통,수도정체추우순직。
Based on the data from hydrological observation and sediment sampling in Kushuiyang during a tide cycle from 3rd July 2011 to 4th July 2011, the water and sediment transport rates are calculated to specify the sediment dynamic characteristics along the tidal channel. The geomorphological evolution and stability of the channel are also discussed on the basis of the comparison between historic sea charts and new topographic surveys. The main results turn out that tidal currents are strong in the channel. Sediments are mainly transported in the form of suspended loads. The net transport direction is landward in the nearshore part of channel, while it is generally pointed seaward in the part of channel east of sand bank (121.606oE,33.029oN). Over the past thirty years, the deep trough of west Kushuiyang channel has gradually connected to the north part of channel, leading the whole channel to be straighter.