1. 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

2. 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 N,156E (longest TRITON record)

3. 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.

4. March, 1998March, 1999March, 2000 March, 2001March, 2002 August, 2002 Development of TRITON buoy array from 1998 to 2002 Purposes; 1. Monitoring ENSO as TAO/TRITON array 2. 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

5. Seventeen (17) TRITON buoys have been maintained since November 2002

6. 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

7. Wind, Temp, RH, Radiation, Precipitation 1.5mCT 25mCT 50mCT 75mCT 100mCT 125mCT 150mCT 200mCT 250mCT 300mCT D 500mCT 750mCT D 10mADCM Floats release 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 200mT 300mTD 500mTD 1mCT 20mCT 60mT 80mT 100mCT 10mADCM 10mCT 40mCT Comparison JEPP buoy vs Present TRITON system m-TRITON Present TRITON Slack line towed line Scope Line Depth 1.3 0.85 120mT 140mT

8. From TOP From bottom JEPP test buoy in FY2004

9. Mooring test Area Suruga Bay Area Suruga Bay Date of deploy Sep 26,05 Date of rec. Dec 7, 05

10. JAMSTEC Indian Ocean Mooring Plan by 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 FY2007FY200 8 FY2009 Developme nt Small size buoy system 222 2 3 3 2 One year inter- comparison at 1.5S90E TRITON. ex.. 0,90E 1.5S90E 5S95E As of February 2006 one month intensive observati onat 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

11. Present TRITON Cut cost below half of present construction and maintenance Make small and light to enable maintenance by ships in coastal countries Improve data processor reliability and future extension mini-TRITON Indian Ocean mooring array by JEPP Replace present TRITON array in future Easy operation Super site TRITON Next generation mooring array Problems Require large vessel for maintenance, High costs for construction and maintenance, Parts getting old, Old fashioned data transmission system. Contribute to GEOSS Earth Observing System. Monitor and study tEl Nino, and Dipole Mode Phenomena. Super site TRITON High precision, interdisciplinary sensors High precision heat and fresh water flux measurements CO2 measurement Utilize present TRITON platform Relation with OceanSites