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Nippon Marine Enterprises, Ltd. Tetsuya YOKOTA October 6, 2004

JAMSTEC Fleet Activities in 2004 （ R/V NATSUSHIMA, KAIYO, YOKOSUKA, KAIREI, ROVs, SHINKAI6500 and New FACES). Nippon Marine Enterprises, Ltd. Tetsuya YOKOTA October 6, 2004. R/V NATSUSHIMA. Changed from “ Mother Ship ” to “ Research vessel ”

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Nippon Marine Enterprises, Ltd. Tetsuya YOKOTA October 6, 2004

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  1. JAMSTEC Fleet Activities in 2004（R/V NATSUSHIMA, KAIYO, YOKOSUKA, KAIREI, ROVs, SHINKAI6500 and New FACES) Nippon Marine Enterprises, Ltd. Tetsuya YOKOTA October 6, 2004

  2. R/V NATSUSHIMA • Changed from “Mother Ship” to “Research vessel” • Acting as a research vessel for conventional research activities • Still now Supporting the ROV “HYPER DOLPHIN” (60% of a year)

  3. R/V KAIYO • Acting as a research vessel for conventional research activities • OBS/SCS/MCS* (38% of a year) • Piston Coring/Navigable Sampling (22% of a year) • Deep Tow Survey (22% of a year) • Deploy, recover the mooring Systems (11% of a year) *OBS: Ocean Bottom Seismometer SCS: Single Channel Seismic survey MCS: Multi Channel Seismic survey

  4. R/V YOKOSUKA • Fuel Cell Trial of AUV URASHIMA • At 2nd Sea Trial Cruise, achieved to run continuously 220km at 800m depth and established the world’s record. • NIRAI-KANAI cruising (see next) • Objective of this cruise; 1)Geological and Petrological study of Large Off-axis Lava Fields along the Southern EPR (East Pacific Rise) 2)Plume Tectonics survey at French Polynesia 3)Geobiological Expedition for Deep-Sea Hydrothermal Ecosystems in the South-West Pacific etc…

  5. “SHINKAI6500” and ”YOKOSUKA” great voyage in the pacific ocean NIRAI KANAI Period 20th Jun~ 24th Nov Port of call Papeete (TAHITI) Apia (Samoa) Auckland (NZ) Suva (FIJI) Contents YK04-07,-09 SHINKAI6500 DIVE YK04-08 Piston Core Dredge Recover and deploy OBS Discovered the Largest lava flow on YK04-07 !!

  6. R/V KAIREI • ROV KAIKO ~now • ROV UROV 7K as the substitute for the KAIKO vehicle, named “KAIKO7000”. • At 3rd Trial Cruise around JAPAN TRENCH July 15, “KAIKO7000” touched 7031m depth. • Next year • Used mainly Continental Shelf Survey.

  7. OTHERS • JAMSTEC has taken over operation of 2 vessels from Ocean Research Institute,The Univ of Tokyo; • R/V HAKUHO-MARU(3991tons)： long-term cruises in the worldwide ocean. • R/V TANSEI-MARU(610tons)： short cruises near the Japan coast.

  8. Lost equipment LOST OCEAN BOTTOM SEISMOMETERS • Where is the OBS? • They didn’t respond when we tried to recover. • An OBS found near Okinawa, ... against the KUROSHIO? Drift!! KUROSHIO

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