scholarly journals A new approach to geophysical real-time measurements on a deep-sea floor using decommissioned submarine cables

1998 ◽  
Vol 50 (11-12) ◽  
pp. 913-925 ◽  
Author(s):  
Junzo Kasahara ◽  
Toshinori Sato ◽  
Hiroyasu Momma ◽  
Yuichi Shirasaki
Keyword(s):  
Real Time ◽  
Deep Sea ◽  
New Approach ◽  
Sea Floor ◽  
Submarine Cables

Deep Sea Observatories

1999 ◽  
Vol 33 (4) ◽  
pp. 41-48 ◽  
Author(s):  
Andrew M. Clark
Keyword(s):  
Real Time ◽  
Deep Sea ◽  
Sea Floor ◽  
Enabling Technologies ◽  
And Control

A survey of some deep-sea observatories that have either been deployed or have been developed is provided. The enabling technologies that facilitate the powering, comrrtartd and control and the transmission of data back to shore is discussed. To facilitate this discussion, examples of a number of observatories are categorized as “Wired to Shore”, “Wired to Surface” or “Wireless”. Among those observatories discussed are Japan’s Hatsushimu Real Time Long-term Deep Sea Floor Observatory, the Hawaii Undersea Geo-Observatory (HUGO), the Hawaii 2 Observatory (H2O), Ocean Net, the Geophysical and Oceanographic Station for Abyssal Research (GEOSTAR) and the NEPTUNE Project. Some relative advantages of each approach are discussed as regards cost, technical and logistical considerations.

New approach of fast matrix access for real-time SAR system

2009 ◽  
Author(s):  
Tengfei Liu ◽  
Shanqing Hu ◽  
Teng Long
Keyword(s):  
Real Time ◽  
New Approach

Large Plastic Debris Dumps: New Biodiversity Hot Spots Emerging on the Deep-Sea Floor

2021 ◽  
Author(s):  
Xikun Song ◽  
Mingxin Lyu ◽  
Xiaodi Zhang ◽  
Bernhard Ruthensteiner ◽  
In-Young Ahn ◽  
...  
Keyword(s):  
Deep Sea ◽  
Hot Spots ◽  
Plastic Debris ◽  
Sea Floor

A new approach for near real-time micro-CHP management in the context of power system imbalances – A case study

2015 ◽  
Vol 89 ◽  
pp. 270-280 ◽  
Author(s):  
J. Zapata Riveros ◽  
R. Donceel ◽  
J. Van Engeland ◽  
W. D’haeseleer
Keyword(s):  
Power System ◽  
Real Time ◽  
New Approach

Gametogenesis and the reproductive cycle in the deep-sea anemone Paracalliactis stephensoni (Cnidaria: Actiniaria)

1990 ◽  
Vol 70 (1) ◽  
pp. 163-172 ◽  
Author(s):  
Michel Praet-Van
Keyword(s):  
Organic Matter ◽  
Shallow Water ◽  
Deep Sea ◽  
Phytoplankton Bloom ◽  
Sea Anemone ◽  
Bay Of Biscay ◽  
Sea Anemones ◽  
Spring Phytoplankton Bloom ◽  
Sea Floor ◽  
Ultrastructural Investigation

This ultrastructural investigation of gametogenesis in a deep-sea anemone of the Bay of Biscay trawled around 2000 m depth, contributes to the knowledge of biology and strategy of reproduction of deep-sea benthos.This sea anemone is dioecious. The sperm appears very similar to those of shallow water sea anemones of the genus, Calliactis. The ultrastructural investigation of oogenesis allows the characteristics of the stages of previtellogenesis and vitellogenesis to be defined. The latter begins with a period of lipogenesis correlated with the formation of a trophonema. Mature oocytes measure up to 180 (im in diameter. Study of spermatogenesis and oogenesis reveals that spawning occurs in April/May. In males, the main area of testicular cysts, full of sperm, reaches maximal development from March to May and, in females, the percentage of mature oocytes decreases from 33% in April to 1% in May.Spawning may be induced by the advent in the deep-sea of the products of the spring phytoplankton bloom. This period of spawning, during the increased deposition of organic matter to the deep-sea floor, may be an advantageous strategy for early development of Paracalliactis.

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