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Yoshifumi Kuroda, Kentaro Ando, Yukio Masumoto and Keisuke Mizuno
Japan Agency for Marine-Earth Science and Technology Center (JAMSTEC)
1. TRITON data web
2. TRITON operation status
3. Japan EOS Promotion Program, and development of mini TRITON
Review of present TRITON project,and
The plan of Indian Ocean mooring array
TRITON web page http://www.jamstec.go.jp/jamstec/TRITON/real_time/ ・ New TRITON Data Management System and new TRITON web page has started in 2005 ・ hourly data (real time) are available now
・ Example of TRITON data display 8 N,156E (longest TRITON record)
What TRITON accomplished ・ Continually monitors ENSO in the Pacific as the
TAO/TRITON array since January 2000.
・ Started the two Indian Ocean TRITON buoy deployment since October 2001 as a pilot study. TRITON array enables to investigate air-sea interaction and water mass change in the Indo-Pacific warm pool with salinity sensors.
・ Developed the data management and data distribution system.
・ Built a marine technician team for mooring work, data calibration and data processing.
・ Built partnership with BPPT, Indonesia which enabled the buoy recovery operation by Indonesian Research Vessel in 2003.
March, 1998 March, 1999 March, 2000
March, 2001 March, 2002 August, 2002
Development of TRITON buoy array from 1998 to 2002
Purposes; 1. Monitoring ENSO as TAO/TRITON array2. Air-sea interaction over the Pacific and Indian Ocean warm
pool 3. Variability of temperature and salinity in the warm pool - Improvement of the predictability of El Nino
Seventeen (17) TRITON buoys have been maintained since November 2002
New JAMSTEC Budget Initiative Funded・ JAMSTEC received a new 5-year budget starting in
JFY2005 for promoting the Indian Ocean mooring array as a part of "JEPP: Japan EOS (Earth Observation System) Promotion Program" related GEOSS.
・ This fund will enable the development of new small size TRITON buoy (JEPP buoy) and the continuation of the present TRITON sites in the Indian Ocean.
Grand design Current array up to 2007
Wind , Temp, RH, Radiation, Precipitation
1.5mCT
25mCT50mCT75mCT100mCT125mCT150mCT200mCT250mCT300mCTD
500mCT
750mCTD
10mADCM
Floats x 5
release x 2
anchor 4t
Wire rope 750m
Nylonφ20
Nylon φ24
Tem
Sal
Depth
Curr
Release
anchor 2t
Nylon rope φ17
Polypropylene rope φ19
Wire rope 750m
Glass floats
200mT300mTD
500mTD
1mCT
20mCT
60mT80mT100mCT
10mADCM10mCT
40mCT
Comparison JEPP buoy vs Present TRITON system
m-TRITON Present TRITON
Slack line towed lineScope Line : Depth 1.3 0.85
120mT 140mT
From From TOPTOP
From From bottombottom
JEPP test buoy in FY2004JEPP test buoy in FY2004
駿駿 河河 湾湾
Mooring test Mooring test
AreaArea Suruga BaySuruga Bay Date of deployDate of deploy Sep Sep 26,0526,05Date of rec. Dec 7, Date of rec. Dec 7, 0505
JAMSTEC Indian Ocean Mooring Planby Japan EOS Promotion Program (JEPP)Indian Ocean Moored Buoy Network Initiative for Climate Studies ( IOMICS )
Pilot TRITON
JEPP
( IOMICS )
1.5S90E 5S95E Since Oct 2001
FY2005 FY2006 FY2007 FY2008 FY2009
Development Small size buoy system
2 22
2 33 2
One year inter-comparison at 1.5S90E TRITON.
ex..0,90E1.5S90E5S95E
As of February 2006
one monthintensiveobservationat 0,80E
1
Data system Current TRITON data system
Development of Data system for JEPP & merged to current one
? Time of merge is not fixed
Present TRITON ① Cut cost
below half of present construction and maintenance ② Make small and light to enable maintenance by ships in coastal countries ③ Improve data processor reliability and future extension
mini-TRITON
① Indian Ocean mooring array by JEPP② Replace present TRITON array in future
Easy operation
Super site TRITON
Next generation mooring array
Problems ① Require large vessel for maintenance, ② High costs for construction and maintenance, ③ Parts getting old, ④Old fashioned data transmission system.
① Contribute to GEOSS Earth Observing System.② Monitor and study tEl Nino, and Dipole Mode Phenomena.
Super site TRITON High precision,
interdisciplinary sensors
①High precision heat and fresh water flux measurements CO2 ②measurement ③ Utilize present TRITON platform
Relation with OceanSites