EXPERIMENTAL STUDY ON THE ENERGY REDUCTION OF A SOLITARY WAVE USING A SAND DUNE-COASTAL LAGOON SYSTEM

Author(s):  
T. L. C. VINODH ◽  
Norio TANAKA
2018 ◽  
Vol 1(91) (1) ◽  
pp. 42-52
Author(s):  
A.S. Kotelnikova ◽  
◽  
V.I. Nikishov ◽  
S.M. Sribnyuk ◽  
◽  
...  

Wetlands ◽  
2021 ◽  
Vol 41 (5) ◽  
Author(s):  
Jesús M. López-Vila ◽  
Juan J. Schmitter-Soto ◽  
Ernesto Velázquez-Velázquez

Author(s):  
K M Ahtesham Hossain Raju ◽  
Shinji Sato

Response of sand dune when overwashed by tsunami or storm surge, is investigated by conducting small scale laboratory study. Dune consisting of initially wet sand and initially dry sand are tested for three different sand grain sizes. Overtopping of water and the corresponding sediment transport are analyzed. These data set can be used to validate mathematical models associated with dune sediment transport as well as prediction of dune profile.


2020 ◽  
Vol 20 (12) ◽  
pp. 845-855
Author(s):  
Carlos Rabago-Quiroz ◽  
Jesús Padilla-Serrato ◽  
Juana López-Martínez ◽  
Juan García-Borbón ◽  
Joaquin D. Magaña

Graceful mojarra (Eucinostomus gracilis) is an important component of the ichthyic fauna of lagoon systems but knowledge of its population aspects is scarce. Monthly samples in the Magdalena-Almejas Lagoon system (March-August, 2014-2017) were obtained with a trawling net. Abundance was estimated using the swept area method and its spatial variation; and the maturity size was determined using the logistic method. The sex ratio for mature and immature populations, and their length-weight relationship were estimated; FISAT was used to estimate the growth and recruitment parameters. Abundance ranged from 0.6 to 203 ind-Ha-1 with changes for each lagoon system areas and among years. Size at maturity (L50) was 132 mm in total length (TL) for the population, 129 mm TL females, and 135 mm TL males. Considering the population of the total organisms, L50 indicated that 18% were adults and 82% were juveniles. Juvenile dominance indicated that this lagoon system is used for grow-out. The smaller ratio of adult organisms does not allow asserting assertion that the priority of the area is for reproduction. E. gracilis showed moderate growth (K = 0.56 year-1) with longevity of 5.4 years and asymptotic length of L∞ = 195 mm.


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