Sensitivity of the half-life time of water exchange in coastal waters

doi:10.1007/s11430-017-9273-2

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Sensitivity of the half-life time of water exchange in coastal waters
	Chen, Zhenhua 1,2,3; Qiao, Fangli 1,2,3; Wang, Gang 1,2,3; Xia, Changshui 1,2,3
刊名	SCIENCE CHINA-EARTH SCIENCES
	2019-04
卷号	62 期号:4 页码:643-656
关键词	Sensitivity Convection-diffusion model Water exchange Half-life time Qinzhou Bay South China Sea
ISSN号	1674-7313
DOI	10.1007/s11430-017-9273-2
英文摘要	A three-dimensional model was established to investigate water exchange in coastal waters, and applied to Qinzhou Bay (QZB) in the South China Sea. Given the strong tidal current in QZB, a half-life time was calculated for water exchange by filtering the tidal signal from the concentrations of a conservative substance. In a control run driven by the tide, without external inputs and an open boundary concentration of zero, it was estimated that the average half-life time in QZB was 54.8 d. Numerical experiments showed that wind accounted for an 11.9% reduction in the half-life time to 48.3 d. When rivers were included in the model, the half-life time decreased by 74.6% to 13.9 d. Sensitivity experiments showed that the half-life time for water exchange was greatly affected by the concentration of the conservative substance which was used at the open boundary. In response to 10, 20, 30, and 40% increases in the boundary concentration, the half-life time increased to 91.5, 168.3, 186.2, and 229.1 d, respectively. Results also suggested that for coastal bays with large intertidal areas such as QZB, consideration of the wet and dry processes produced more accurate simulations of the hydrodynamics and the half-life times. Simulations, which did not incorporate wet and dry processes, were more than likely to have overestimated or underestimated the half-life times for water exchange.
电子版国际标准刊号	18691897
资助项目	Qingdao National Laboratory for Marine Science and Technology[2015ASTP]
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000462228900004
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/12784]
专题	业务部门_海洋环境与数值模拟研究室
通讯作者	Qiao, Fangli
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266071, Peoples R China 3.State Ocean Adm, Key Lab Marine Sci & Numer Modeling MASNUM, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zhenhua,Qiao, Fangli,Wang, Gang,et al. Sensitivity of the half-life time of water exchange in coastal waters[J]. SCIENCE CHINA-EARTH SCIENCES,2019,62(4):643-656.
APA	Chen, Zhenhua,Qiao, Fangli,Wang, Gang,&Xia, Changshui.(2019).Sensitivity of the half-life time of water exchange in coastal waters.SCIENCE CHINA-EARTH SCIENCES,62(4),643-656.
MLA	Chen, Zhenhua,et al."Sensitivity of the half-life time of water exchange in coastal waters".SCIENCE CHINA-EARTH SCIENCES 62.4(2019):643-656.