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Keywords: takumi
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Proceedings Papers
Three Years Operation of Ocean Nutrient Enhancer TAKUMI In Sagami Bay
Available to Purchase
Paper presented at the Seventh ISOPE Ocean Mining Symposium, July 1–6, 2007
Paper Number: ISOPE-M-07-029
... ABSTRACT: TAKUMI the prototype of Ocean Nutrient Enhancer, which upwells and discharges Deep Ocean Water (DOW) in the euphotic layer and increases a primary production in the sea, was set up in Sagami bay in May 2003. Since then, TAKUMI has been continuously upwelling the DOW of 100,000m3/day...
Proceedings Papers
Strain Measurement On Riser Pipe of "TAKUMI"
Available to Purchase
Paper presented at the Seventh ISOPE Ocean Mining Symposium, July 1–6, 2007
Paper Number: ISOPE-M-07-030
... ABSTRACT: The Ocean Nutrient Enhancer "TAKUMI" was installed in Sagami-Bay in May 2003. It is a SPAR type floating structure with a riser pipe for pumping up the Deep Ocean Water. The inner diameter and length of the riser pipe are 1m, and 175m. This riser pipe has strain gages, which were...
Proceedings Papers
Ecological Footprint Accounting of "TAKUMI"
Available to Purchase
Paper presented at the Seventh ISOPE Ocean Mining Symposium, July 1–6, 2007
Paper Number: ISOPE-M-07-031
... Ecological Footprint Accounting of TAKUMI Koji Otsuka Department of Marine System Engineering, Osaka Prefecture University Sakai, Osaka, Japan ABSTRACT An ecological footprint accounting of the prototype ocean nutrient enhancer TAKUMI was performed to assess the sustainability of this type...
Proceedings Papers
Recent Advances of Ocean Nutrient Enhancer "TAKUMI" Project
Available to Purchase
Paper presented at the Sixth ISOPE Ocean Mining Symposium, October 9–13, 2005
Paper Number: ISOPE-M-05-002
... is supported by the results of many researches on natural upwelling, e.g. Ryther's classical report (1969). dilution rate marine primary production ts diagram dow riser pipe discharge observation data mixed water seawater takumi upstream oil & gas density current generator deep ocean...
Proceedings Papers
Measured Results of Oceanographic Observation By Using "TAKUMI"--- About Wave Condition
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Paper presented at the Sixth ISOPE Ocean Mining Symposium, October 9–13, 2005
Paper Number: ISOPE-M-05-003
...Measured Results of Oceanographic Observation by using TAKUMI About Wave Condition Katsuya Maeda, Yutaka Ohkawa And Kenkichi Tamura Ocean & Ice Engineering Department, National Maritime Research Institute Mitaka, Tokyo, Japan ABSTRACT Ocean Nutrient Enhancer TAKUMI is a SPAR type floating...
Proceedings Papers
Ocean Nutrient Enhancer "TAKUMI" For the Experiment of Fishing Ground Creation
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Paper presented at the Fifth ISOPE Ocean Mining Symposium, September 15–19, 2003
Paper Number: ISOPE-M-03-008
... of ONE, whose specifications are the DOW upwelling capacity of 100,000m3/day, the displacement of about 1,700tons, Diesel generator of 100kw. The ONE named "TAKUMI" which was set-up with the single point mooring system at the centre in Sagami Bay in the depth of about 1,000m, is now in continuous...
Proceedings Papers
Research Plan For Assessment of the Effectiveness of Fertilizing Sea Area By Utilizing Deep Ocean Waters - A Trial In the Project For the Development of Fishing Grounds By Applying Deep Ocean Water.
Available to PurchaseSeiichi Kanamaki, Yasuharu Uemura, Hisaaki Ohmura, Tatsuo Suzuki, Yoichi Honda, Yuko Oshima, Ichiro Yasuda
Paper presented at the Fifth ISOPE Ocean Mining Symposium, September 15–19, 2003
Paper Number: ISOPE-M-03-009
... ultimately at enabling phytoplankton biomass to increase. Our group is responsible for biological sector to examine the change in phytoplankton biomass. The "sea area fertilizing apparatus: TAKUMI" has already been produced. Out of several applicable waters, we finally decided the site to be at the core part...
