A KNOWLEDGE-CENTRIC E-RESEARCH PLATFORM FOR MARINE LIFE AND OCEANOGRAPHIC RESEARCH

2010 ◽  
Keyword(s):  
Marine Life ◽  
Research Platform ◽  
Oceanographic Research

scholarly journals Field Observations of Breaking of Dominant Surface Waves

2021 ◽  
Vol 13 (16) ◽  
pp. 3321
Author(s):  
Pavel D. Pivaev ◽  
Vladimir N. Kudryavtsev ◽  
Aleksandr E. Korinenko ◽  
Vladimir V. Malinovsky
Keyword(s):  
Surface Waves ◽  
Strong Dependence ◽  
Field Observations ◽  
Whitecap Coverage ◽  
Dissipation Term ◽  
Video Recordings ◽  
Research Platform ◽  
Oceanographic Research ◽  
Equilibrium Range ◽  
Semi Empirical

The results of field observations of breaking of surface spectral peak waves, taken from an oceanographic research platform, are presented. Whitecaps generated by breaking surface waves were detected using video recordings of the sea surface, accompanied by co-located measurements of waves and wind velocity. Whitecaps were separated according to the speed of their movement, c, and then described in terms of spectral distributions of their areas and lengths over c. The contribution of dominant waves to the whitecap coverage varies with the wave age and attains more than 50% when seas are young. As found, the whitecap coverage and the total length of whitecaps generated by dominant waves exhibit strong dependence on the dominant wave steepness, ϵp, the former being proportional to ϵp6. This result supports a parameterization of the dissipation term, used in the WAM model. A semi-empirical model of the whitecap coverage, where contributions of breaking of dominant and equilibrium range waves are separated, is suggested.

Helping to support threatened marine life

Nature ◽  
2020 ◽  
Vol 578 (7795) ◽  
pp. 482-482
Author(s):  
Josie Glausiusz
Keyword(s):  
Marine Life

STRUKTUR KOMUNITAS MAKRO ALGA DI PESISIR PULAU KECAMATAN BULANG

SIMBIOSA ◽  
2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Notowinarto Notowinarto ◽  
Ramses Ramses ◽  
Mulhairi Mulhairi
Keyword(s):  
Community Structure ◽  
Diversity Index ◽  
Algal Species ◽  
Algal Communities ◽  
Marine Life ◽  
Ph Values ◽  
Abundance Patterns ◽  
Coastal Marine ◽  
Temperature Parameter ◽  
Important Value Index

Bulang districts Batam Islands of  Riau province (Riau Islands), its consists of many islands with as well as having the potential diversity of coastal marine life in particular kinds of macro algae or seaweed. Conducted research aimed to determine the structure of macro- algal communities in the intertidal zone islands. The results of the identification of algal species found 16 species are: the Order of Chlorophyceae as 6 spesies; Order Phaeophyceae as 2 spesies; and Order Rhodophyceae as 8 spesies. The community structure at the five stations showed the highest values were found in the island of dominance Cicir (D ' = 0.79) , uniformity index values on Tengah Island (E ' = 0.99) , while the island Balak had the highest diversity index (H ' = 0.88) , with the abundance patterns of population structure on the island is pretty good Central . Results of correlation analysis of regression between IVI types of algae with the conditions of environmental quality suggests that there is a significance (Fhit ˃ F table and the value of r = > 90 %) between IVI algae Halimeda sp and Cryptarachne polyglandulosa at each station with a temperature parameter surface (⁰C) , depth temperature (⁰C) and pH values. Keywords : Algae, Community Structure, Important Value Index.

Discovery at sea; a heady mix of scientists, ships and sailors

2005 ◽  
Vol 32 (2) ◽  
pp. 177-191 ◽  
Author(s):  
A. L. Rice
Keyword(s):  
Human Nature ◽  
Research Platform ◽  
Almost All

The success or failure of science at sea depends on many factors, including the suitability of the vessel as a research platform and the support of the scientist's shipmates. This paper touches on a few of the classic examples of unsuitable ships provided for scientists and explorers, such as Wyville Thomson and Carpenter in the Lightning in 1868 and the relatively minor shortcomings of Scott's Discovery. But it concentrates on some of the personality clashes on research or exploration voyages ranging from Edmund Halley's experience of an insubordinate mate in the Paramore in 1698, to Nicolas Baudin's appalling relations with almost all of his companions in the Géographe and Naturaliste in 1800–1803. Since human nature does not change it is suggested that seagoing scientists should pay at least as much attention to the personalities of their prospective shipmates as to the characteristics of the ships in which they expect to sail.

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