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| 渤海海峡区域现代沉积速率分布的数值计算 | |
| 引用本文： | 蒋东辉,高抒,李凤业. 渤海海峡区域现代沉积速率分布的数值计算[J]. 海洋科学, 2003, 27(3): 32-35 |
| 作者姓名： | 蒋东辉 高抒 李凤业 |
| 作者单位： | 1. 中国科学院海洋研究所,青岛,266071;南京大学海岸与海岛开发教育部重点实验室,南京,210093 2. 南京大学海岸与海岛开发教育部重点实验室,南京,210093 3. 中国科学院海洋研究所,青岛,266071 |
| 摘 要： | 利用平面二维数值模型 ,计算了渤海海峡沉积速率的平面分布 ,计算结果与210Pb测年数据较为一致。渤海海峡中部泥区是现代泥质沉积区 (堆积速率<2mm/a) ,沉积速率分布趋势为南高北低 ;山东半岛北部近岸泥区的堆积速率在1mm/a以下。研究区西北部为海底冲刷区 ,其中渤海海峡北侧的老铁山水道附近为最强冲刷区 ,冲刷速率高达9mm/a。 |
| 关 键 词： | 沉积速率 数值模拟 ^210Pb方法 渤海海峡 |
| 文章编号： | 1000-3096(2003)03-0032-04 |
| 收稿时间： | 2002-05-14 |
| 修稿时间： | 2002-05-14 |
NUMERICAL CALCULATIONS OF MODERN DEPOSITION RATES FOR THE BOHAI STRAIT REGION |
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| JIANG Dong Hui, GAO Shu LI Feng Ye. NUMERICAL CALCULATIONS OF MODERN DEPOSITION RATES FOR THE BOHAI STRAIT REGION[J]. Marine Sciences, 2003, 27(3): 32-35 | |
| Authors: | JIANG Dong Hui GAO Shu LI Feng Ye |
| Affiliation: | JIANG Dong Hui1,2 GAO Shu2 LI Feng Ye1 |
| Abstract: | A 2 D horizontal numerical model is used to derive the distribution patterns of deposition rates over the Bohai Strait region. The results obtained are comparable to the data by 210Pb analysis. According to the model output, the Central Mud of the study area is a modern mud deposit (with accretion rates being below 2 mm/a) and the accretion rate is higher in the south than in the north of the mud patch; erosion occurs at the edge of the mud patch. In the mud belt off the coast of northern Shandong Peninsula, the accretion rate is below 1 mm/a. Over the north western Bohai Strait area, an intense erosion area is found within the Lao Tie Shan channel on the northern side of the Bohai Strait, with a maximum erosion rate exceeding 9 mm/a. |
| Keywords: | Deposition rate numerical modeling 210Pb method Bohai Strait |
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