Results 71 to 80 of about 272 (160)

Economic Development Drives Massive Global Estuarine Loss in the Anthropocene

Earth's Future, Volume 12, Issue 4, April 2024.
Abstract Estuaries have great ecological and economic value and sustain both population and economic growth. Global‐scale analyses suggest that human activities drive estuarine area change but these projections neglect direct human‐estuary interactions and socio‐economic feedbacks.
Nathalie W. Jung, Guan‐hong Lee, Timothy M. Dellapenna, Yoonho Jung, Tae‐Chang Jo, Jongwi Chang, Steven M. Figueroa   +6 more
wiley   +1 more source

Evolution of tidal flats influenced by tidal bores and runoff in the Qiantang Estuary, China

Shui kexue jinzhan
Tidal flats provide crucial ecosystem services and coastal protection. Comprehending the evolution of tidal flats, influenced by tidal bores and runoff, is key to protecting these environments in the Qiantang Estuary′s tidal bore zones.
Congcong LAO, Jian ZENG, Junqiang XIA, Pei XIN   +3 more
doaj   +1 more source

Salinity prediction in Qiantang Estuary based on Improved LSTM model

Abstract Investigating saltwater intrusion is vital for optimal use of estuarine water resources. Presently, diverse data-driven models, mainly neural network models, have been employed to predict tidal estuarine salinity. However, the high nonlinearity, randomness, and instability of salinity sequences pose challenges for accurate estuarine ...
Rong Zheng, Zhilin Sun, Jiange Jiao, Qianqian Ma, Liqin Zhao   +4 more
openaire   +1 more source

Spatial and seasonal variations of organic carbon distributions in typical intertidal sediments of China [PDF]

, 2020
Intertidal zones are the main sites for land-ocean interaction and play an important role in transporting and accumulating organic carbon (OC).
Liu, Dongyan, Wang, Enhui, Yao, Peng, Xiao, Xiaotong, Ding, Yang, Liu, Ke, Zhao, Meixun, Zhang, Yushuang   +7 more
core   +1 more source

Cetacean stranding records along the Shanghai–Zhejiang coastline in China: implications for distribution and conservation

Frontiers in Marine Science
Cetacean ecology has been poorly studied in the Shanghai-Zhejiang waters of East China Sea, seriously hindering appropriate local conservation practices.
Jing Yuan, Yili Gao, Nan Wang, Tianhua Jiang, Zhaolong Cheng   +4 more
doaj   +1 more source

Field testing and numerical modeling of vehicle-induced vibrations on an ancient seawall via an approach slab

Frontiers in Earth Science
The Yanguan Ancient Seawall at the Qiantang River estuary is a nationally protected cultural heritage and an in-service flood defense. Construction activities, such as vehicle crossings, pose risks of vibration-induced damage to this aging structure.
Wei Lin, Qiang Chen, Qiang Chen, Min Hu, Min Hu, Yangyang Xu, Yangyang Xu, Benyong Liu, Benyong Liu, Li Shi   +9 more
doaj   +1 more source

Numerical simulation of sediment transport characteristics under tidal action in the Qiantang estuary

Frontiers in Marine Science
The Qiantang River Estuary (QRE) is a typical alluvial estuary featured by intense tidal bores, high suspended sediment concentration, and drastic bed erosion-deposition processes.
Yingbiao Shi, Yingbiao Shi, Jun Zhang, Jun Zhang, Wenlong Cheng, Wenlong Cheng   +5 more
doaj   +1 more source

Numerical simulation of tidal flow field in the Qiantang Estuary bends(钱塘江河口弯道潮流场的数值模拟)

Zhejiang Daxue xuebao. Lixue ban, 2007
钱塘江河口潮流错综复杂，依靠零星的实测潮流资料无法全面描述其流场特征.本文采用Deldt3D模型对钱塘江河口闻家堰至仓前河段的潮流场进行二维数值模拟，着重研究了河口弯道的流场特性.结果表明，河口弯道流场具有跟无潮河流弯道显著不同的特性，如弯道流速向下游递增；涨、落急主流线分歧；涨、落潮流对丁坝工程的响应不同，以及下游弯道水面横比降大于上游弯道.
ZHULi-li(祝丽丽), SUNZhi-lin(孙志林), HUANGSai-hua(黄赛花), XIAShan-shan(夏珊珊), SUNPing-feng(孙平锋)   +4 more
doaj   +1 more source

Neural network modeling of salinity in Qiantang Estuary(钱塘江河口盐度的神经网络模拟)

Zhejiang Daxue xuebao. Lixue ban, 2011
盐水入侵会对潮汐河口饮用水源地产生影响，河口盐度的合理预测对饮用水源地取水安全和水库泄水抑咸调度有重要意义.以上游流量和下游潮差为控制条件，建立模拟钱塘江河口盐度变化情况的神经网络模型.首先对输入数据作归一化处理，利用上半年观测数据对模型进行反复训练，进而后报下半年盐度.模型输出数据反归一化所得到的结果与实测盐度数据比较，两者较为一致.表明基于河口盐度与上游流量和下游潮差间映射关系所建立的神经网络模型可有效地模拟潮汐河口的盐度变化.利用神经网络方法模拟了上游流量变化条件下钱塘江河口某测站的氯化物浓度 ...
XUDan(许丹), SUNZhi-lin(孙志林), PANDe-lu(潘德炉)   +2 more
doaj   +1 more source

Collision dynamics of dual tidal bores in the Qiantang River Estuary, China

Abstract Dual tidal bores occur in estuaries with specific riverbed morphology, yet the hydrodynamics of their collision remain poorly quantified. In this study, we investigate the collision dynamics of dual tidal bores in the Qiantang River Estuary using field data and a numerical model.
Qiushun Wang, Pan Cunhong, Chen Fuyuan, Xu Jin, Liu Ye   +4 more
openaire   +1 more source