Profiling Float for Abyssal ocean Deep NINJA The Tsurumi Seiki Co., LTD. Profiling Float for Abyssal ocean Deep NINJA AST-18, Hobart Australia March 17, 2017

Dedicated to Water Observation The Tsurumi Seiki Co., LTD. Established in 1928 Based in Yokohama Dedicated to Water Observation

Exclusive facilities of Deep Ninja The Tsurumi Seiki Co., LTD. Exclusive facilities of Deep Ninja Pressure Tank Pressure tank Buoyancy adjusting tank

History of the Deep NINJA The Tsurumi Seiki Co., LTD. History of the Deep NINJA Collaboration with JAMSTEC starting in 2010 Goal of 4000m depth Highly programmable Light hull Max battery capacity First deployment in the Southern Ocean in 2013

Profiling Float for Abyssal Ocean Deep NINJA The Tsurumi Seiki Co., LTD. Profiling Float for Abyssal Ocean Deep NINJA Deep NINJA has the capability to observe up to a depth of 4000m with a newly developed buoyancy engine and pressure housing.

Physical information and components The Tsurumi Seiki Co., LTD. Physical information and components 1 Antenna for positioning and data transfer 2 CTD (SBE41CP 7,000m) 3 Ring for lift up when deploy 4 Pressure hull 5 Oil bladder ( inside the case ) Operation Depth 4,000m Pressure hull Aluminum alloy Length Approx. 210cm (including antenna) Max. diameter Approx. 25 cm Weight Approx. 50 kg ( in air ) Positioning GPS positioning at surfacing Data transfer IRIDIUM Short Burst Data Batteries Lithium battery

Programmable Profile Parameters The Tsurumi Seiki Co., LTD. Pre-programmable parameters provide Deep NINJA with various movement patterns. Programmable Profile Parameters Flexibility to adapt to needs of customer

Surface Ice Avoidance Bottom Avoidance The Tsurumi Seiki Co., LTD. Pre-programmable parameters provide Deep NINJA with various movement patterns. Surface Ice Avoidance Bottom Avoidance

Map of Deployments of Deep NINJA The Tsurumi Seiki Co., LTD. Map of Deployments of Deep NINJA

Status ~2017/2/20 The Tsurumi Seiki Co., LTD. S/N Launch Area Profiles Last data Operation Days Ice Detection Activation Bottom Reach Activation Status 1 2012/8/29 North Pacific 2012/8/30 Inactive 2 21 2012/11/1 64 3 2012/12/19 Antarctic 15 2013/6/1 164 4 2012/12/6 Off Newzealand 50 2014/10/19 682 5 2012/12/18 14 2013/7/15 209 6 2012/12/16 27 2014/8/22 614 13 7 2013/7/17 33 2014/6/1 319 8 2014/3/6 2014/3/27 9 2014/3/8 23 2015/5/3 421 18 10 2014/1/23 2014/1/24 11 2014/1/19 2014/6/20 152 12 2014/3/25 61 2014/1/27 2015/3/24 40 2016/2/4 741 2014/12/6 43 2017/2/15 802 Active 16 2016/1/31 South-west of Indian 2016/11/18 292 17 2016/2/2 20 2017/2/8 372 2016/3/2 2016/9/10 557 19 2017/2/20

Turbulence Probe Collaboration with Rockland Scientific The Tsurumi Seiki Co., LTD. Turbulence Probe Collaboration with Rockland Scientific Based on a request from Tokyo University Dr. Yasuda Need for the study of Turbulence in the deep ocean Collaboration with Rockland Scientific to adapt their sensor technology on a profiling float

Turbulence Probe Collaboration with Rockland Scientific The Tsurumi Seiki Co., LTD. Turbulence Probe Collaboration with Rockland Scientific Fast Temperature Probe : For measuring turbulence temperature fluctuations. Shear Probe : For measuring turbulence velocity fluctuations. Probe Holder Tube : For prevent the flow of the CTD pump Bulkhead Connector : For interfacing data logger (USB port).

Testing observation of turbulence float in Sagami Bay August 2016 The Tsurumi Seiki Co., LTD. Testing observation of turbulence float in Sagami Bay August 2016 Launch of turbulence float Sagami Bay Izu Peninsula Observation sea area Recovering by boat 8dives 1,500db max

Data Logging in Sagami Bay The Tsurumi Seiki Co., LTD. Data Logging in Sagami Bay

Deep Ninja with Optical DO Sensor The Tsurumi Seiki Co., LTD. Deep Ninja with Optical DO Sensor Dual Element Antenna CTD Sensor(SBE41CP:Sea Bird) Optical DO Sensor(SBE63:Sea Bird)

Reliability and Quality The Tsurumi Seiki Co., LTD. Reliability and Quality Deep Floats have greater challenges Increased pressures Higher power consumption Greater risk for bottom interference To date for the Deep NINJA High variability of success Difficult to assess the source of malfunction Highest priority for Deep NINJA team

Future Plans for Deep NINJA The Tsurumi Seiki Co., LTD. Future Plans for Deep NINJA Increased Battery Capacity and expected number of Profiles Higher Reliability Additional sensor capabilities

THE TSURUMI SEIKI CO., LTD. Head Office / Main Plant / Service Center Shirakawa Factory TSK America Liaison Office (INDIA) http://www.tsk-jp.com/