The GEOSS Joint Asia – Africa Water Cycle Symposium
Tokyo, Japan
25 - 27 November 2013

Current Situation & Future Challenges on Water /Disaster Risk Reduction Issues in the PhilippinesJORYBELL A. MASALLOCLIMATOLOGY AND AGROMETEOTOROLOGY DIVISIONPAGASA-DOSTPAGASA - DOSTOUTLINE OF PRESENTATIONPAGASA - DOSTBACKGROUND
Geographical Location of the Philippines
The Philippines climate is
influenced by the complex
interactions of various
factors such as: Philippine Geography
and Topography Ocean currents
 Semi-permanentcyclones and anticyclones
 Principal Air Streams
 Linear systems
 Tropical Cyclones
PAGASA - DOSTEXTREME FLOOD EVENTS IN THE
PHILIPPINES•••••••••

1972 flood in Central Luzon – due to 4 storms in July to August
1979 flood in Bulacan due to unprecedented spill of Angat dam
1991 flash flood in Ormoc City due to Typhoon Uring
2004 flood in Pangasinan & Pampanga and flash floods in Infanta &Quezon provinces due to passages of Typhoons Violata, Winnie andYoyong
2006 floods/flashflood in Albay due to passage of Typhoon (Durian)
2008 floods/flashflood in Panay Island due to passage of Typhoon Frank(Fengshen)2009 floods in Metro Manila & surrounding provinces & Pangasinan
due to spill of San Roque dam
2011 floods in Central Luzon (Typhoons Pedring & Quiel) and Cagayan
de Oro and Iligan cities (Tropical Storm Sendong)
2012 floods in Metro Manila & surrounding provinces due to the surgeof the Southwest monsoon
PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINESAug 2004 floods in Pangasinan & Pampanga and flash floods
in Infanta & Quezon provinces

Mosaic ofDingalan
town andvicinity
showingflood/flashflood
hazardanalysis.
(Data: 2005
aerialphotographs,courtesy ofICDAI)PAGASA - DOST

Source: Cruz, et al, 2005

EXTREME FLOOD EVENTS IN THE PHILIPPINES
29 Nov 2006 flood/flashflood in Albay province

DeadAffectedpopulation

Total
Damage

734

2.0M

P5.5B

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
Jun 2008 flood/flash flood in the Iloilo province

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
26 Sep 2009 flooding in Metro Manila & surrounding provinces (TS Ketsana)

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINESCauses of flooding in Metro Manila and surrounding areas on
26 September 2009 – due to passage of TS Ketsana
Insufficient warnings

Intense rainfall

Insufficient carrying
capacities

Deforestation
Unabated/rampant
development

Informal settlers

High rate ofurbanization

High/dense population

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
09 October 2009 floods in Pangasinan
due to the spill of San Roque dam

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
Sep - Oct 2011 floods in Central Luzon (Typhoons Pedring & Quiel)

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
Flash flood in Cagayan de Oro & Iligan cities on16 Dec 2011 due to passage of TS Washi

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
Severe Flooding occured on August 6-8, 2012 due to Southwest
Monsoon (as enhanced by Typhoon Haikui)

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
Severe Flooding occured on August 17-21, 2013 due to Southwest
Monsoon (as enhanced by Typhoon Trami)
Dead

Affected
population

Total
Damage

531M

$1.5M

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINESStorm surge occured at Eastern Visayas due to Typhoon Haiyan(Nov. 8, 2013)
DeadAffectedpopulation

TotalDamage

5,235

10M

$522M

PAGASA - DOSTEXTREME FLOOD EVENTS IN THE PHILIPPINES
Impacts of flooding

Source: Office of Civil Defense

PAGASA - DOSTPAGASA IN A NUTSHELL
Philippine Atmospheric, Geophysical &Astronomical Services Administration(PAGASA) - Presidential Decree No. 78 (Dec. 1972)
as amended by PD No. 1149 (June 1977)

PAGASA is an attached agency of thePAGASA Headquarter
Department of Science and Technology
Agham Road, Diliman, QC.
(DOST)The Philippines, through the PAGASA, is a Member of theWorld Meteorological Organization (WMO),a specialized body of the United Nations.

MISSIONTo provide weather, flood, climate and astronomical products
and services to promote the people’s safety and well-being, andcontribute to national development.
PAGASA - DOSTPAGASA IN A NUTSHELL
OFFICE OF THE ADMINISTRATOR
3 Deputy Administrators• Administration & Engineering Services• Operations & Services• Research & Development

Administrative
Division

Financial, Planningand Management
Division

Weather Division

Climatology andAgrometeorology
Division

Engineering andTechnical Services
DivisionHydroMeteorology
Division

Research &Development andTraining Division

National Capital Region

Synoptic Observation Network

PAGASA Regional
Services Divisions(5)

Northern Luzon
Southern Luzon
VisayasMindanao

Flood Forecasting Warning Centers
Agromet Observation Network
Radar Network
Upper-Air Observation Network
AWS Network
Rainfall Station Network

Field Stations

PAGASA - DOSTPAGASA IN A NUTSHELL

LEGEND:
58 Synoptic Stations
25 Agromet Stations
PAGASA - DOSTPAGASA IN A NUTSHELL

LEGEND:AWS (155)
ARG (87)
Radar (10)Upper Air Stations (6)Marine Buoy (2)MTSAT/WAFSAWOS (1)Wind Profiler (1)VSAT
PAGASA - DOSTPAGASA IN A NUTSHELLPAGASA - DOSTPAGASA IN A NUTSHELL

Monitored telemetered major river basins
River basin / dam
1. Pampanga river basin
2. Agno river basin
3. Bicol river basin
4. Cagayan river basin
5. Pasig-Marikina-Laguna LakeEFCOS (MMDA)
KOICA (PAGASA)ASTI (DOST)
6. Angat dam
5. Pantabangan dam
6. Binga/Ambuklao dam
7. San Roque dam
8. Magat dam
9. Ipo/La Mesa dam

RG
1712115WL
10975Date1973
1983
1983
1983

71779
45636211163321222219932012
2012
1986
1986
1992
2003
1992
2011

Monitored telemetered major reservoirs
PAGASA - DOSTPAGASA IN A NUTSHELLPAGASA - DOSTPAGASA IN A NUTSHELLPAGASA - DOSTPAGASA IN A NUTSHELLPAGASA - DOSTCHALLENGES, OPPORTUNITIESAND WAY FORWARD
 Establishment of FFWS Centers (buildings) in the other13 major river basins in the country
River Basin

Location

Area, km2

1

Abulog

Luzon

3,372

2

AbraLuzon

5,125

3

PanayVisayas

1,843

4

JalaurVisayas1,503

5

Ilog-Hilabangan

Visayas1,945

6AgusanMindanao

10,6217Agus-Lake Lanao

Mindanao

1,645

8

Cagayan de Oro

Mindanao

1,521

9

Tagum-Libuganon

Mindanao

3,064

10

Davao

Mindanao

1,623

11

Buayan-Malungun

Mindanao

1,434

12

Taglaoan

Mindanao

1,704

13

Mindanao

Mindanao

23,16918 Major river basins

PAGASA - DOSTCHALLENGES, OPPORTUNITIESAND WAY FORWARD

 Operationalization of the Project “Establishment of Early
Warning & Monitoring System for Metro Manila”
EFCOS Monitoring & Warning system

KOICA2 Project

Integration of existing & proposed monitoring
systems – Resilience project (UNDP-CIDA)
KOICA Monitoring & warning systemPAGASA - DOSTCHALLENGES, OPPORTUNITIESAND WAY FORWARD

PAGASA - DOSTCHALLENGES, OPPORTUNITIESAND WAY FORWARD
Participation in the implementation ofNationwide Operational Assessment of Hazard s (NOAH)

Eight(8) component projects under theNOAH program
1) Hydro met Sensors Development,
2) DREAM-LIDAR 3-D Mapping Project,3) Flood NET-Flood Modeling Project,
4) Hazards Information Media,
5) Enhancing Geo-hazards Mapping through
LIDAR,
6) Doppler System Development,
7) Landslide Sensors Development
Project, and;
8) Storm Surge Inundation Mapping Project.
PAGASA - DOSTCHALLENGES, OPPORTUNITIESAND WAY FORWARD
 Continue flood hazard mapping activities (1:10K)
 Integration and harmonization of activities under various local& foreign- assisted project which will are on-going and to be
implemented in 2014
 Adoption of the newly upgraded Dam & Flood warning
protocols Promotion of Community Based Flood Early Warning System(CBFEWS)PAGASA - DOSTPAGASA - DOSTPAGASA - DOST