1. The ITF Gateway Program Jae Hak Lee, Dongchull Jeon, Jae-Hun Park (KORDI) Arnold Gordon, Andreas Thurnherr (LDEO)

2. Western tropical Pacific ITF portals N.Pacific S.Pacific ~zero South China Sea portals Luzon Strait NOAA Makassar Mooring HYCOM shows net throughflow at Luzon and Mindanao/Halmahera transports vary out-of-phase with ENSO Sibutu Passage

3. The ITF Gateway Program Objective: to monitor the contribution to the ITF of Mindanao/Halmahera and Luzon Strait; How does leakage into the ITF depend on Mindanao Current transport? 2013 - 2015

4. Luzon Strait Mindanao/Halmahera Makassar Strait GATEWAY ?

5. The imbalance of the westward flow [A] and eastward flow [B] marks the feed of tropical Pacific Water into Makassar Strait and Maluku Sea. A B C C = A - B Gray 1986-1999

6. ~1000 m M M M ~3000 m ~1000 m ~3500 m ~2500 m ~3500 m M ~1000 m PIES CPIES M Current mooring: 2 LR ADCP, upward and downward set 500 m; current meters, 1500 m, near sea floor; microcat at sea floor [approx bottom depth shown] On deployment: CTD/LADCP [yo-yo, tidal cycle] section. Repeat as often as possible in rotation and recovery cruises. 2 yr deployment, 1 yr rotation of all moorings [which upon study enables planning for a possible longer range plan, beyond the 2 nd year] Ships: BJ8?, KORDI?, US?, China?, ??? Luzon Strait by China [SIO: Zhu, Chen] ? PIES CPIES M Current mooring: 2 LR ADCP, upward and downward set 500 m; current meters, 1500 m, near sea floor; microcat at sea floor [approx bottom depth shown] On deployment: CTD/LADCP [yo-yo, tidal cycle] section. Repeat as often as possible in rotation and recovery cruises. 2 yr deployment, 1 yr rotation of all moorings [which upon study enables planning for a possible longer range plan, beyond the 2 nd year] Ships: BJ8?, KORDI?, US?, China?, ??? Luzon Strait by China [SIO: Zhu, Chen] ?

7. TIME TABLE: Interact with collaborators to build a preliminary program design 2011. 3 : KORDI-NOAA meeting, Busan 2011. 9 : LDEO-KORDI meeting, NY [supported by MLTM/Korea-NOAA JPA project (PIs: Gordon,Lee,Jeon)] 2012. 2 : Ocean Science Meeting, Salt Lake City 2012. 3 : CLIVAR ITF TT meeting Korea component: a proposal has been submitted [Ro, Jeon & Indonesia] US component: NSF proposal Aug 2012 [Thurnherr, Gordon,... ] Field work late 2013 to late 2015 TIME TABLE: Interact with collaborators to build a preliminary program design 2011. 3 : KORDI-NOAA meeting, Busan 2011. 9 : LDEO-KORDI meeting, NY [supported by MLTM/Korea-NOAA JPA project (PIs: Gordon,Lee,Jeon)] 2012. 2 : Ocean Science Meeting, Salt Lake City 2012. 3 : CLIVAR ITF TT meeting Korea component: a proposal has been submitted [Ro, Jeon & Indonesia] US component: NSF proposal Aug 2012 [Thurnherr, Gordon,... ] Field work late 2013 to late 2015

8. Apr 1986 - Sep 2010 Drifter Tracks WEAKNESS ? ? WEAKNESS: monitoring of Halmahera Eddy flow into Halmahera Seas However: ITF mainly North Pacific origin; Maybe at ITF TT meeting coverage of the Halmahera Seas will emerge?