Results 21 to 30 of about 268 (156)

Turbulence, Sediment‐Induced Stratification, and Mixing Under Macrotidal Estuarine Conditions (Qiantang Estuary, China) [PDF]

Journal of Geophysical Research: Oceans, 2019
AbstractTime series of in situ measured velocity and suspended sediment concentration from Qiantang Estuary (China), and estimates of turbulence and sediment stratification parameters are presented. The data span a period of 9 days, and after phase averaged, they are used to explore spring‐neap tidal variations in flow, turbulence, and sediment ...
Junbiao Tu, Daidu Fan, Yue Zhang, George Voulgaris   +3 more
openaire   +2 more sources

The Decadal Changes in Resource and Environmental Carrying Capacity of Estuarine Ecosystem

Haiyang Kaifa yu guanli
From the perspectives of resources, environment, and socio-economic factors, a comprehensive evaluation index system for the resource and environmental carrying capacity of the Qiantang River estuary ecosystem was constructed.
MA Panpan, HE Wei, ZHENG Chongying, GU Weifang, DING Jiawei   +4 more
doaj   +1 more source

The computation of flushing time in Qiantang Estuary(钱塘江河口水体冲洗时间的计算)

Zhejiang Daxue xuebao. Lixue ban, 2012
钱塘江河口与长江河口比邻，其水体和物质交换必然受到相当的影响.针对此类情况，以浓度分布受河口上游径流控制的溶解态保守物质作为示踪剂，建立相应的水动力和对流扩散模型，并在此基础上，利用淡水组分法计算了在不同径流量条件下钱塘江河口水体的冲洗时间。结果表明，钱塘江河口水体冲洗时间枯季为146. 4 d、常年平均流量下为136.3 d、洪季为121.8 d，河口水体的冲洗时间随径流量增大而变短。
YAOYan-ming(姚炎明), ZHUBin(朱斌), LIJia(李佳)   +2 more
doaj   +2 more sources

Calculation and study on pollutant degradation coefficients of Qiantang River estuary

IOP Conference Series: Earth and Environmental Science, 2021
Abstract Qiantang River Estuary is a typical macro-tidal estuary in China, with features of strong tidal and high sediment concentration. In order to figure out degradation characterization of the major pollutants of Qiantang River estuary, water samples were taken in Xinsha Island, Changansha Island and Wenyan.
Chengqi He, Ruohua Li, Hongying Chen
openaire   +1 more source

Population Genomics Provides Novel Insights Into Evolutionary Relationships and Local Adaptation of Two Ecotypes <i>Coilia nasus</i>. [PDF]

Ecol Evol
Based on whole‐genome resequencing, we determined that the freshwater‐resident form (C. nasus taihuensis) is an ecotype of anadromous Coilia nasus, not a distinct subspecies. The two ecotypes diverged approximately 4.6 thousand years ago, coinciding with the formation of Tai Lake.
Ma F, Wang S, Ma W, Wang H, Jin H, Peng L, Yin G, Liu K.   +7 more
europepmc   +2 more sources

Spatial and temporal distribution of macrobenthos communities and their relationship with secondary front in Hangzhou Bay

Frontiers in Marine Science, 2022
Water quality in Hangzhou Bay is inferior (grade 5) because of discharged from Yangtze River and Qiantang River, and from factories around the bay. This study analyzed relationships between the environment and macrobenthic communities at 44 stations ...
Kangning Jia, Yanbin Tang, Qinghe Liu, Rongliang Zhang, Yibo Liao, Yibo Liao, Lu Shou, Lu Shou, Jiangning Zeng, Jiangning Zeng, Quanzhen Chen, Jianfang Chen, Jianfang Chen, Jianfang Chen   +13 more
doaj   +1 more source

Sedimentary facies characterization through CPTU profiles: An effective tool for subsurface investigation of modern alluvial and coastal plains

Sedimentology, Volume 70, Issue 4, Page 1302-1327, June 2023., 2023
ABSTRACT Cone penetration tests, a method that is typically used to determine the engineering properties of soils, can be used as an effective tool for refined subsurface stratigraphic investigations of alluvial and coastal plains, aside from the geographic location.
Bruno Campo, Luigi Bruno, Alessandro Amorosi   +2 more
wiley   +1 more source

Stratigraphy and sedimentary evolution of a modern macro‐tidal incised valley: An analogue for reservoir facies and architecture

Sedimentology, Volume 69, Issue 2, Page 696-723, February 2022., 2022
Abstract Incised valley fills are complex as they correspond to multiple sea‐level cycles which makes interpretation and correlation of stratigraphic surfaces fraught with uncertainty. Despite numerous studies of the stratigraphy of incised valley fills, few have focused on extensive core coverage linked to high fidelity dating in a macro‐tidal, tide ...
Claire McGhee, Dahiru Muhammed, Naboth Simon, Sanem Acikalin, James E. P. Utley, Joshua Griffiths, Luke Wooldridge, Iris T. E. Verhagen, Cees van der Land, Richard H. Worden, Victoria Valdez   +10 more
wiley   +1 more source

Influence of Ningbo–Zhoushan Port Main Corridor on the Tidal Current Dynamics in the Zhoushan Sea Area

Geofluids, Volume 2022, Issue 1, 2022., 2022
Ningbo–Zhoushan Port Main Corridor project is important in the development of Zhoushan City, but its impact on the hydrodynamic characteristics of the Zhoushan sea area is still unclear. Finite volume method is used in the present study to solve the shallow water equations and establish a plane two‐dimensional tidal current numerical model.
Zhanxiong Gu, Yi Xue
wiley   +1 more source

Sedimentation on high‐energy sand flats in the Bay of Fundy: The record of tidal‐bore activity and deposition from high‐concentration suspensions of sand

Sedimentology, Volume 68, Issue 5, Page 2195-2226, August 2021., 2021
Abstract The Cobequid Bay – Salmon River estuary, Bay of Fundy, does not possess particularly large tidal bores (maximum ca 30 cm). Nevertheless, detailed logging of 13 peels made from cores spread throughout the entire area influenced by tidal bores indicates that inferred tidal‐bore deposits comprise approximately 15% of the deposits in the upper ...
Robert W. Dalrymple, Piret Plink‐Björklund   +1 more
wiley   +1 more source