Ocean
observing andinformation
systems in thePhilippines
Cesar Villanoy
Marine Science Institute
University of the Philippines

Philippine archipelago consists ofcomplex system of islands, sea
passages and basins withcomplicated topography

Orographic effects important
making it also challenging toconduct ocean and atmosphereobservations

Spatial variable wind stress produces sub-meso-scale ocean features. From Flament, Chavanne

Tracks and intensity of all tropical
cyclones

http://eoimages.gsfc.nasa.gov/images/imagerecords/7000/7079/tropical_cyclone_map_lrg.gifHottest of the Hotspots

Observation programs• National Mapping and Resource Information

Authority (operational agency foroceanograpy-also designated as the national
oceanographic data center)• Philippine Atmospheric, Geophysical,

Astronomical Services Administration(operational meteorological agency)• Bureau of Fisheries and Aquatic Resources• Research-based observations (e.g. academicinstitutions)coral monitoring, water quality in aquaculture
areas• Meteorology/Oceanography• Project NOAH•NAMRIA TIDE STATIONSBASCOSAN VICENTE

EXISTING TIDE STATIONS = 47

CURRIMAO

IOC NEAR-REAL-TIME TELEMETRY STATIONS = 6
NEAR-REAL-TIME TELEMETRY STATIONS = 34

SAN FERNANDO

NON-TELEMETRY STATIONS = 7

REALMARIVELESPORT JOSEPANGANIBANVIRA
CBALANACAN

SUBICBALE
R

BULA
N

LEGAZPICALAPANMANILACORON

LUBANGMAMBURAOODIONGANBATANGASEL NIDOSAN JOSE

SAN JOSE
N.SAMARSANCARLOSCATBALOGAN

MASBATE

PULUPANDANTACLOBANCEBUCATICLANPUERTO PRINCESASAN JOSE
ANTIQUETANDAGBALINTANGSURIGAOGUIUANBROOKESPOINT
MATI
PAGADIAN
ZAMBOANGAGEN SANDUMAGUETE
MAMBAJAODAVAOBONGAOCAGAYAN DE ORO
TAGBILARAN

Observation Platformsresearch vessels, met buoys, coastal hf
radarsCoral Reef Monitoring Sites
Sta. Ana, Cagayan
Bolinao and Anda, Pangasinan
Caramoan
Lian, Batangas
Sablayan, Occidental Mindoro
Taytay, Palawan
Tubbataha
Camotes, Cebu
Loon, Bohol
Samal
Bongao, Tawi-Tawi

Ocean and Atmosphere ModelingRegional 1/25° HYCOM
Domain99.04°E to 130°E, 0.32°N to 25.0061°N

Grid

1/25° (~4.4 km) ; hybrid 32 layers; 875 by 639 grid
cells

BoundaryCondition

Open Boundary – Nested Boundary

Bathymetry

ETOPO2v2Forcing

NAVy Global Environmental Model (NAVGEM 1.2)

Initial Condition

Polar science center Hydrographic Climatology(PHC)

Implementation

Open MPI using DOST-ASTI’s and PGC’s HPCs

OutputNative *[ab] files

Temporal Span(target)

Sept 2013 - Dec 2016

StatusSuccessfully run until May 2016, waiting for the
release of NAVGEM 1.3 for 2016

1/25° Regional HYCOM
results (left) vs Shipboard
ADCP data

0.2

0.4
1.4

0.6
1.6
Speed (m/s)

0.8
1.8

1.0
2.0

1.2
2.2

Zonal sections across Luzon

Atmospheric Modeling using WRF

Need for access to observations,data, information, analysis,predictions to manage disasterrisk and resource utilization
http://www.geoportal.gov.ph/

http://noah.dost.gov.ph/#/http://meteopilipinas.gov.ph/Applications of ocean model
data (reef connectivity)

Cooperative Programs ongoingand in the near future• Year of the Maritime Continent – Western

Luzon, SCS/Sulu Sea)

• PISTON (Propagation of Intraseasonal

Tropical Oscillations) – western Luzon• Kuroshio andMindanao Currents• Proposed JICA-SATREPS

Ocean EWS

Gordon et al 2014

Thank you forlistening