scholarly journals SHORE PROTECTION ON THE COAST OP "YAIZU"

1966 ◽  
Vol 1 (10) ◽  
pp. 66
Author(s):  
Goichi Seo ◽  
Tatsuma Fukuchi

This report describes the history of beach erosion and the countermeasures against it extending over the last few centuries on the coast of "YAIZU" Pishing Port. It also includes a study on the causes of erosion by analysing geographical, topographical and oceanogrphical conditions of the coastal area.

Author(s):  
PING WANG

The shoreline of northern Colombia is located in the tropical zone along the south coast of Caribbean Sea. Its coastal processes are strongly influenced by the northeast trade wind, which results in the dominating northeasterly approaching wave occurring over 95% of the time. This drives a persistent southwestward longshore sand transport. The state of the beach along the generally northeast-southwest trending northern Colombia coast is strongly influenced by this constant unidirectional longshore sediment transport. At locations where this westward longshore sand transport is interrupted, naturally or  anthropogenically, beach accretion occurs along the updrift shoreline coupled with erosion at the downdrift side. Natural interruption of longshore transport can be caused by tidal inlets, protruding headland, shoreline orientation change, and nearshore bathymetry variations. Anthropogenic interruption of the longshore transport along the northern Colombia coast is mainly caused by the construction of groins, as well as harbors at some locations. Numerous groins were constructed due to their local success in creating beach accretion at the drift side. However, severe beach erosion occurs along the downdrift shoreline. Shoreline protection along the northern Colombia coast, and coasts in the tropical area in general, should carefully consider the persistent unidirectional longshore sand transport and should not be misguided by the local updrift accumulation as being a successful project.


2004 ◽  
Vol 10 ◽  
Author(s):  
Alfio BRANDENBURG ◽  
Angela Duarte Damasceno FERREIRA ◽  
Leonardo José Cordeiro SANTOS

O texto trata do meio ambiente rural da Região Metropolitana de Curitiba e do Litoral Norte do Paraná a partir da sua heterogeneidade, do rural como espaço de interesses ambientais conflitantes, como espaço do risco socialmente construído, como espaço de reencontro com a natureza e como espaço de surgimento de novos atores sociais. Em função dos processos organizativos em curso nos espaços rurais, e em função do reconhecimento da diversidade de situações socioambientais existentes e das distintas estratégias implementadas pelos diferentes atores para se reproduzir, pode-se dizer que existe uma vitalidade dos grupos sociais rurais para recriar suas trajetórias e inscrevê-las como elementos da historicidade do seu território. Socio-environmental dimensions of contemporary rurality Abstract The text addresses the rural environment in the Curitiba Metropolitan Area and in Paraná’s northern coastal area in its heterogeneity, rural area as a space of conflicting environmental interests; as a space of socially created risk; as a space of reencounter with nature; and as a space for the emergence of new social actors. Owing to the organizational processes that are taking place in rural areas, and as a function of acknowledging the diversity of existing socio-environmental situations and different strategies implemented by different actors to reproduce themselves, it can be said that there is vitality in the rural social groups as they recreate their trajectories and include them as elements of the history of their territory.


Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1647 ◽  
Author(s):  
Enzo Pranzini ◽  
Giorgio Anfuso ◽  
Irene Cinelli ◽  
Marco Piccardi ◽  
Giovanni Vitale

Analysis of a large shoreline database (from 1878 to 2017) and recompilation of information on type/age of shore protection structures along the Northern Tuscany, allowed a deep insight of the progressive armouring of this coastal sector. The area experienced beach erosion since the end of the 19th century due to reduced sediment inputs from rivers and harbour constructions. Shore protection structures started to develop at the beginning of the 20th century, first to protect settlements and coastal roads, later to maintain a beach for tourist activity. The changing of the goal and the increasing awareness of the negative impact of some structures resulted in an evolution of coastal defence projects: initially, seawalls and revetments, later detached breakwaters and, more recently, groins. Today, a reduction in hard structures is perceived by removing or lowering detached breakwaters and groins below mean sea level. The forcing function of the growing tourism industry is producing a demand for projects and their design is detailed in this paper: results will be of use in the correct design of a long-term, general, erosion management plan to restore the natural sediment circulation patterns.


1984 ◽  
Vol 1 (19) ◽  
pp. 170 ◽  
Author(s):  
Osamu Toyoshima

Japan is a mountaineous country, and coastal areas have been looked upon quite valuable. In most cases, shorelines were slightly advancing until 1950, although there are some exceptional coasts which have been under continuous erosion for more than a thousand years. However, in the last thirty years, beaches began to be eroded one after another, and the countermeasure against beach erosion has become one of the most important problems in the national land preservation. Since the early 1960's, many seawalls against the beach erosion have been constructed. The table shows the amounts of the shore protection works constructed in the last twenty years.


2015 ◽  
Vol 14 (1) ◽  
pp. 38-41
Author(s):  
Nuruzzaman ◽  
Md Ashraful Alam ◽  
Md Parvez Iqbal Sharif ◽  
Parveen Akter ◽  
Nabeela Mazid ◽  
...  

Women are more vulnerable in health and family planning and this vulnerability is more in–depth in coastal area. The study was done to determine the reproductive characteristics and nutritional status of women in coastal area. It was conducted in Moheshkhali upazila of Cox’s Bazar district in 2013 among 220 purposively selected coastal women of reproductive age. Face to face interview was done through pretested questionnaire. Average age of the respondents was 26.5 years. Almost 60% of them were Muslims and 44% were illiterate. The average monthly family income and family size was Tk-6968.18 and 5.8 respectively. More than half (56%) of the respondents had history of regular use of contraceptives and oral pill was the most common type of contraceptive. Average number of children was 2.95. More than half of them (54%) had history of home delivery. More than one-third (34%) of them were under nourished. Nutritional status was significantly associated with income (p<0.05). Majority of them got early marriage (70%) but early marriage was not significantly associated with their nutritional status. Age at first pregnancy and parity of the respondents were in significant state with the nutritional status of women of coastal area (p<0.05). Socio-demographic disparity should be reduced to improve the nutritional status by improving the reproductive health of coastal women. DOI: http://dx.doi.org/10.3329/cmoshmcj.v14i1.22881 Chatt Maa Shi Hosp Med Coll J; Vol.14 (1); Jan 2015; Page 38-41


2010 ◽  
Vol 158 (11) ◽  
pp. 3355-3364 ◽  
Author(s):  
César C. Martins ◽  
Márcia C. Bícego ◽  
Michel M. Mahiques ◽  
Rubens C.L. Figueira ◽  
Moyses G. Tessler ◽  
...  

Author(s):  
Joan Pope

The U. S. Army Coastal Engineering Research Board (CERB), established on 7 November 1963 by Public Law No. 172, of the 88th USA Congress, has had a major impact on the field and profession of coastal engineering for over 50 years. The CERB replaced the Beach Erosion Board (BEB) (created in 1930) and provided oversight to the Coastal Engineering Research Center (CERC), now the Coastal and Hydraulics Laboratory. The greatest names in USA coastal engineering and science have served on the CERB and helped to define the course of USA coastal research and practice.


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