scholarly journals INFLUENCE OF CROWN-WALL ON WAVE OVERTOPPING PROBABILITY AND PROBABILITY DISTRIBUTION OVER A SEAWALL

2018 ◽  
pp. 70
Author(s):  
Jiayue Gu ◽  
Xin Hu ◽  
Shuguang Liu ◽  
Quanhe Ju
Keyword(s):  
Design Method ◽  
Storm Surges ◽  
Wave Overtopping ◽  
Individual Volume ◽  
The Pacific ◽  
Individual Wave ◽  
The Pacific Ocean ◽  
Engineering Measure ◽  
Overtopping Probability ◽  
The Stability

In the past decades, the crest height of the seawall was determined by the allowable average wave overtopping rate q. Franco (1994) concluded that individual wave overtopping，particularly the maximum individual volume, provided a better design method than q, considering the stability of the seawall and the safety of vehicles and people along the coastal area protected by the coastal defense structures. Shanghai, located on the west bank of the Pacific Ocean, is quite sensitive to the risk of storm surges and violent wave overtopping. The crown-wall serves as an engineering measure to reduce the wave overtopping effectively.

scholarly journals SEAWALLS IN DEEP SEAS

1980 ◽  
Vol 1 (17) ◽  
pp. 122
Author(s):  
Shoshichiro Nagai ◽  
Shohachi Kakuno
Keyword(s):  
Japan Sea ◽  
Wave Overtopping ◽  
Open Sea ◽  
The Pacific ◽  
The Seto Inland Sea ◽  
The Japan Sea ◽  
The Pacific Ocean ◽  
Under Construction ◽  
A Site ◽  
Good Agreement

Features in wave overtopping of two new types of seawalls designed to be built in considerably deep sea conditions are presented herein. One of those is the seawall of concrete caisson with a parapet wall and armor blocks on the top of the caisson, and another one is the seawall with a slitted box-type wave absorber. The former type of seawall has successfully been constructed in the Japan Sea and the Seto Inland Sea and is also to be constructed at a site directly exposed to an open sea of the Pacific Ocean in 1980 and 1981. The latter type of seawall was proposed in 1977 after numerous experiments and has been under construction in the Port of Osaka since 1978. The results of the experiments on the wave overtopping over the slit-type seawall were compared with the calculated results, obtained by an analysis in which the wave overtopping over a parapet wall was considered similar to the phenomenon of flow over sharp-edged weirs having time-dependent overflow-head. The calculated curves obtained are in good agreement with the experimental results. The designs of these two types of seawall are also presented herein.

scholarly journals Changes in climatic tendencies in the Antarctic Peninsula region

2017 ◽  
pp. 29-37
Author(s):  
Volodymyr Kravchenko ◽  
Oleksandr Evtushevsky
Keyword(s):  
Antarctic Peninsula ◽  
Regional Climate ◽  
Regional Climate Change ◽  
Winter Temperature ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Ocean Sector ◽  
The Stability ◽  
The Antarctic

Estimations of couplings of winter temperature in the Antarctic Peninsula region with tropical temperature anomalies indicate long term changes in the intensity of tropical influences. These changes are associated with the stability of the meridional wavetrain of stationary planetary waves, along which tropical disturbances in the Pacific Ocean sector propagate, affecting the climate of the Antarctic Peninsula. The period of the most significant tropical effects is the 1980s and the 1990s, and, at that time, the most rapid winter warming at Faraday/Vernadsky station was observed. One of the components of the winter temperature change on the peninsula is a 16year periodicity with amplitude of about 1oС that also contributes to regional climate change.

On the Pacific Ocean regime shift

2001 ◽  
Vol 28 (19) ◽  
pp. 3721-3724
Author(s):  
Cathy Stephens
Keyword(s):  
Pacific Ocean ◽  
Regime Shift ◽  
The Pacific ◽  
The Pacific Ocean
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