Application for Consent to Conduct Marine Scientific Research in Areas Under National Jurisdiction of. Philippines

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1 Date: July 29, 2008 Application for Consent to Conduct Marine Scientific Research in Areas Under National Jurisdiction of Philippines 1. General Information 1.1 Cruise name and/or #: Philippine Archipelago Experiment: High- Resolution Towed-Body Surveys of Submesoscale Variability 1.2 Sponsoring institution: U.S. Office of Naval Research Name: Dr. Scott Haper Address: 875 North Randolph Street, Suit 1425 Arlington, VA Name of Director: Dr. Tony Haymet, SIO Director 1.3 Scientist in charge of the project (include CV and passport photo): Name: Dr. Craig M. Lee Address: Applied Physics Laboratory University of Washington 1013 NE 40th St Seattle, WA USA Telephone: Fax: Scientist(s) from coastal state involved in the planning of the project: Name(s): Dr. Cesar Villanoy, Dr. Laura David Address: Marine Science Institute University of the Philippines Manila 1.5 Submitting officer: Name and address: Rose M. Dufour / Elizabeth Brenner Scripps Institution of Oceanography University of California, San Diego La Jolla, California USA Nationality: Telephone: (858) Fax: (858) shipsked@ucsd.edu 2. Description of Project (Attach additional pages as necessary) 2.1 Nature and objectives of the project: This research program seeks to understand: 1. Means and direction by which information gets routed through the archipelago. We know that the interior is forced to some extent by fluctuating pressure distributions around the edge. On the Pacific side these come from westward propagating Rossby waves that hit the Philippine coastline and from

2 Kelvin or other coastal waves propagating along the coast. There is undoubtedly forcing from the South China Sea as well. To what extent do these signals propagate into the archipelago interior? Is the flow of information primarily westward? Are the signals important in establishing the interior flow, or is the latter primarily driven by wind and other local forcing? Processes governing flow partition in multiply-connected domains, including investigations of flow separations, internal waves, instabilities and sidewall eddy generation. The dominant dynamical balances that characterize the flow at different locations and scales. Response to (relatively) small-scale wind shear created by orographic effects on monsoon winds. Directed by remotely sensed sea surface temperature, wind speed and ocean color images, we will characterize the temporal evolution and three-dimensional structure of selected features by occupying repeated survey patterns with two towed profiling platforms. The proposed measurement program exploits two towed profiling vehicles (Triaxus and) to address the challenges posed by the rapidly-evolving, three-dimensional nature of submesoscale features within Lombok Strait. The vehicles offer complementary sampling capabilities that allow rapid, broad-reaching surveys, measurements near the surface and bottom boundaries, provide lateral resolutions of O( m) and support a dense array of physical and optical sensors. Triaxus offers rapid tow speeds that allow broad, synoptic coverage. The Triaxus E model (Fig. 6a) is a new-generation towed profiler that has recently passed its sea trials. Triaxus profiles from the surface to 350 m (or deeper, depending on sea state) at tow speeds of 2 10 knots and can profile offset to the side, outside of the towing vessel s wake (providing improved surface layer characterization). Large foils control pitch and yaw, while smaller trim tabs stabilize the vehicle against roll. Vertical speed remains nearly constant (typically chosen as 1 m/s) throughout the profile. We also operate a hybrid SeaSoar (TriSoarus, Fig. 6b) that has been modified to improve flight performance when operating on unfaired tow cables. Dual single-mode fibers provide high-bandwidth telemetry to support a broad range of sensors. Both vehicles accommodate extensive payloads including dual Seabird CT, 1200 khz ADCPs, SBE43 dissolved oxygen, Wetlabs transmissometer, chlorophyll and CDOM flurometers, additional optical sensors to be added by Jones, Boss and Marra (see below), attitude package, dual Tritech altimeters and an acoustic transponder. (a) Figure 6. (a) Triaxus and (b) TriSoarus towed profilers. Triaxus can exert lateral control and operates over a wide range of tow speeds. TriSoarus is a hybrid SeaSoar with electric wing actuation and over-sized flight surfaces. Both carry SBE911+ CTD systems and an advanced fiber-optic MUX that eases sensor integration. An electro-optical tow cable provides high-bandwidth telemetry. The two vehicles share winch, tow cable, electronics, terminations, control and data acquisition systems. Vehicles can be

3 exchanged rapidly, with minimal reconfiguration, as part of routine operations. (b) 2.2 Relevant previous or future research cruises: Related cruises include the exploratory cruise conducted by Dr. Arnold Gordon and colleagues during summer, 2007, the December 2007 collaborative cruise led by Drs. Pierre Flament, Cesar Villinoy and Laura David, and the regional survey and towed profiler cruises that took place in early Also the Dr. Gordon s regional survey cruise which will follow this effort in March Previously published research data relating to the project: None 3. Methods and Means to be Used 3.1 Particulars of vessel: Name: Nationality (Flag state): Owner: Operator: Overall length (meters): Maximum draught (meters): Displacement/Gross tonnage: Propulsion: Cruising & Maximum speed: Call sign: Method and capability of communication (including emergency frequencies): R/V Melville USA Office of Naval Research Scripps Institution of Oceanography 85 m 5m 2,516 Two 1385 hp Z-Drive 11.7 knots, 14 knots WECB master@rv-melville@ucsd.edu F77 Voice Telephone Pacific F-77 FAX Pacific Telex (AnsBk=WECB) Vessels guard standard GMDSS frequencies for calling, distress and dissemination of marine safety information.

4 MMSI # SELCAL # Name of master: Captain Christopher Curl Number of crew: 22 Number of scientists on board: Aircraft or other craft to be used in the project: No aircraft. 3.3 Particulars of methods and scientific instruments Types of samples and data Methods to be used Instruments to be used T, S, chlorophyll fluorometer, Shipboard CTD profiling Seabird CTD and rosette light attenuation (660nm), DOM fluorescence, dissolved oxygen profiles Water velocity profiles Ship-based surveys Shipboard ADCP, GPS, GPS attitude Metorological variables (e.g. wind speed, heat flux, air tempertature, etc) Ship-based surveys Shipboard meteorological sensors T, S, dissolved oxygen, chlorophyll fluorescence, blue/red light backscatter, water velocity shear Underway (UW) multibeam and single beam Synoptic towed profiling surveys Swath mapping Sub-Bottom Profiler Triaxus towed profiler, Seasoar towed profiler and the Shallow Water Integrated Mapping System (SWIMS). EM120 multibeam, 12khz and Knudsen 320 B 3.5 / 12 UW Mags Magnetometer deployment Marine Magnetics total field gradiometer UW Gravity Gravimeter Bell Gravimeter T, S, chlorophyll fluorometer, water velocity, optical backscatter, dissolved oxygen concentration Deployment of gliders Seagliders 3.4 Indicate whether harmful substances will be used: No harmful substances 3.5 Indicate whether drilling will be carried out: No drilling 3.6 Indicate whether explosives will be used: No explosives 4. Installations and Equipment Details of installations and equipment (dates of laying, servicing, recovery; exact locations and depth): Satellite remote sensing (sea surface temperature, ocean color) will guide sampling to important features within the Philippine Archipelago. Repeated three-dimensional surveys (using Triaxus, Seasoar or SWIMS) will then characterize the feature. Surveys durations will range from hours to several days, after which a new feature will be chosen and the process repeated.

5 Sampling will take place within the grey box defined below. Survey location depends on the configuration of mesoscale variability at the time of deployment, so we cannot tell in advance exactly where within the box a given survey will occur. Similarly, we cannot know in advance exactly what times these operations will occur, though we expect all sampling to happen roughly between January and March, Also, depending on timing, we might recover or deploy Seagliders during this. Should any gliders malfunction during the period of this cruise, we would likely recover the failing instruments. 5. Geographical Areas 5.1 Indicate geographical areas in which the project is to be conducted (with reference in latitude and longitude): We request permission to conduct towed profiler surveys within Philippine waters within the grey shaded areas in the chart attached below. Sampling will likely focus on the region west of Mindoro and Panay, though, time permitting, we respectfully request permission to sample in the Bohol Sea and Surigao Strait (as depicted in the chart). 5.2 Attach chart(s) at an appropriate scale (1 page, high-resolution) showing the geographical areas of the intended work and, as far as practicable, the positions of intended stations, the tracks of survey lines, and the locations of installations and equipment. 6. Dates 6.1 Expected dates of first entry into and final departure from the research area of the research

6 vessel: First entry between late January and February 2009, final departure roughly one month after first entry Therefore, clearance approval is requested from 25 January 2009 through 15 March, 2009, where up to a 25 days cruise would take place within this window of time. 6.2 Indicated if multiple entry is expected: All sampling will take place within the Philippine EEZ. 7. Port Calls 7.1 Dates and names of intended ports of call: Embark and debark science party in Manila. Dates TBD. 7.2 Any special logistical requirements at ports of call: None. 7.3 Name/Address/Telephone of shipping agent (if available): GAC 8. Participation: 8.1 Extent to which coastal state will be enabled to participate or to be represented in the research project: Participation from the Institute of Marine Science will be encouraged. We anticipate that Dr. Villanoy, Dr. David and their colleagues and/or students may wish to participate. 8.2 Proposed dates and ports for embarkation/disembarkation: All operations to occur from Manila. 9. Access to data, samples and research results 9.1 Expected dates of submission to coastal state of preliminary reports, which should include the expected dates of submission of the final results: No more than 30 days from the end date of the cruise. 9.2 Proposed means for access by coastal state to data and samples: Due to data volume (many GB), we request permission to provide download access to all data via web or ftp. 9.3 Proposed means to provide coastal state with assessment of data, samples and research results or provide assistance in their assessment or interpretation: Participation in international data analysis workshops and science symposia during the analysis phase of the project. 9.4 Proposed means of making results internationally available: Publication in scientific journals and reports. (form revised June 5, 2002)

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