Fine sediment resuspension dynamics in Moreton Bay
文献类型：期刊论文
| 作者 | You Zai-jin; Yin Bao-shu |
| 刊名 | CHINA OCEAN ENGINEERING
 |
| 出版日期 | 2007 |
| 卷号 | 21期号:2页码:267-280 |
| 关键词 | Sediment Resuspension Critical Bed Shear Stress Wind Waves Ocean Swell |
| ISSN号 | 0890-5487 |
| 文献子类 | Article |
| 英文摘要 | A comprehensive field study has been undertaken to investigate sediment resuspension dynamics in the Moreton Bay, a large semi-enclosed bay situated in South East Queensland, Australia. An instrumented tripod, which housed three current meters, three OBS sensors and one underwater video camera, was used to collect the field data on tides, currents, waves and suspended sediment concentrations at four sites (Sites 1, 2, 4, and 5) in the bay. Site I was located at the main entrance, Site 2 at the central bay in deep water, and Sites 4 and 5 at two small bays in shallow water. The bed sediment was fine sand (d(50) = 0. 2 mm) at Site 1, and cohesive sediment at the other three sites. Based on the collected field data, it is found that the dominant driving forces for sediment resuspension are a combination of ocean swell and tidal currents at Site 1, tidal currents at Site 2, and wind-waves at Sites 4 and 5. The critical bed shear stress for cohesive sediment resuspension is determined as 0. 079 Pa in unidirectional flow at Site 2, and 0. 076 Pa in wave-induced oscillatory flow at Site 5.; A comprehensive field study has been undertaken to investigate sediment resuspension dynamics in the Moreton Bay, a large semi-enclosed bay situated in South East Queensland, Australia. An instrumented tripod, which housed three current meters, three OBS sensors and one underwater video camera, was used to collect the field data on tides, currents, waves and suspended sediment concentrations at four sites (Sites 1, 2, 4, and 5) in the bay. Site I was located at the main entrance, Site 2 at the central bay in deep water, and Sites 4 and 5 at two small bays in shallow water. The bed sediment was fine sand (d(50) = 0. 2 mm) at Site 1, and cohesive sediment at the other three sites. Based on the collected field data, it is found that the dominant driving forces for sediment resuspension are a combination of ocean swell and tidal currents at Site 1, tidal currents at Site 2, and wind-waves at Sites 4 and 5. The critical bed shear stress for cohesive sediment resuspension is determined as 0. 079 Pa in unidirectional flow at Site 2, and 0. 076 Pa in wave-induced oscillatory flow at Site 5. |
| 语种 | 英语 |
| WOS记录号 | WOS:000247856500008 |
| 公开日期 | 2010-12-30 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/6251]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 作者单位 | 1.NSW Dept Nat Resources, Coastal Unit, Dangar, NSW 2309, Australia 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | You Zai-jin,Yin Bao-shu. Fine sediment resuspension dynamics in Moreton Bay[J]. CHINA OCEAN ENGINEERING,2007,21(2):267-280. |
| APA | You Zai-jin,&Yin Bao-shu.(2007).Fine sediment resuspension dynamics in Moreton Bay.CHINA OCEAN ENGINEERING,21(2),267-280. |
| MLA | You Zai-jin,et al."Fine sediment resuspension dynamics in Moreton Bay".CHINA OCEAN ENGINEERING 21.2(2007):267-280. |
入库方式： OAI收割
来源：海洋研究所
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