نتایج جستجو برای: beach slope

تعداد نتایج: 61841  

Journal: :Ocean Engineering 2022

This work presents the results of an investigation on how wave overtopping at a near-vertical seawall back sandy foreshore is influenced by sequences erosive storms. The experiments were carried out in Large Wave Flume (GWK) Leibniz University, Hannover (Germany). tested layout consisted 10/1 and with initial 1/15 slope. Three idealised storms simulated. Within each storm both incident conditio...

2018
Rui Lu Chengcheng Shen Chunyong Yang Yan Chen Juanjuan Li Kaizhi Lu

BACKGROUND Although the safety and effectiveness of the short-axis in-plane method has been confirmed for lumbar plexus block, the operation is difficult and has a high rate of epidural spread at the plane of the articular process. Therefore, we developed a new in-plane technique, called the beach chair method, which displays images from the transverse process. We compared the operative difficu...

Journal: :Journal of Marine Science and Engineering 2023

Most empirical equations used for wave runup predictions have been developed from measurements at straight sandy beaches in unlimited fetch environments. While there are to predict on gravel beaches, they not tested prediction of pocket limited-fetch environment, which can be found around Mediterranean. This paper addresses this lack type and examines the alongshore variability runup. Wave were...

Journal: :Jurnal Kelautan Tropis 2023

Hawksbill turtles were observed nesting along the coast of Baluran, mainly at Batu Hitam Beach. The eggs relocated to a hatchery on Bama Beach, which is beach where hawksbill have never been seen laying naturally. Referring natal homing/philopatry hypothesis, hatchlings that are released Beach will likely come back lay in future. Meanwhile, planned be developed into tourist area. To preserve th...

2016
James T Liu Zhi-Jun Dai James T. Liu Ya-Ping Lei Xiao-Ling Zhang

DAI, Z.-J.; LIU, J.T.; LEI, Y.-P., and ZHANG, X.-L., 2010. Patterns of sediment transport pathways on a headland bay beach—Nanwan Beach, South China: a case study. Journal of Coastal Research, 26(6), 1096–1103. West Palm Beach (Florida), ISSN 0749-0208. Embayed beaches bounded by headlands, headland bay beaches, are a common feature along the coast of southern China. The patterns of sediment tr...

Journal: :Coastal Engineering Proceedings 1970

2010
M. J. Starek K.Clint Slatton

Monitoring beaches and studying the processes that govern their change are critical to the future sustainability of these valued environments and the economies that depend on them. Airborne light detection and ranging (lidar) systems have revolutionized beach monitoring enabling high resolution sampling of nearshore topography over long segments of coastline quickly, accurately, and economicall...

1999
Robert J. Turner

Coastal erosion of low latitude beaches frequently results in exposure of beachrock, layers of beach sand cemented in the subsurface by the intergranular precipitation of calcium carbonate. Exposed beachrock can have a profound impact on the event, seasonal, and long-term morphodynamics of a beach. The influence of beachrock on beach processes will largely depend on the extent and morphology of...

2007
E. Santana J. F. Dumont

We present a granulometric study of emerged pebble beach ridges in the Fort Williams Point, Greenwich Island, Antarctic Peninsula. We studied 8 beach ridges from the shore up to 13.5 m above current sea level. The beach ridges are made of volcanic material from the surrounding relief, but also include glacially transported gneiss and granodiorite pebble and cobble. Based on granulometric distri...

2008
Guo Hu Wang Ying Cui Weijia

In this research, the historic data of NOAA /AVHRR NDVI (1981-2000) and the anomaly vegetation index were utilized. Monitoring and analyzing the winter wheat drought situation in the pre-green up period, green up period, heading period and filling period from 1997 to 2000 in Hebei province, Discussing the effects of drought situation in the key growing periods on the winter wheat yield, Taking ...

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