Natural Hazards and the Role of NAMRIA in Geohazard Mapping of

Natural Hazards and the
Role of NAMRIA in
Geohazard Mapping
of the Philippines
Philippines
Archipelago:
7,107 islands
 Capital: Manila
 Land area:
~300,000 sq km
 Population: 90M
 Spoken Language:
Pilipino and English
111 dialects, 8 major
 Time: GMT + 8 hours
 Climate:
Wet and Dry

Natural Hazards
Volcanic Eruptions
Hazards associated with Volcanic Eruption
1. Tephra Fall
2. Pyroclastic Flow
3. Lava Flow
4. Lahar Flow
5. Flood
Mt. Pinatubo
Earthquake
PHILIPPINE
SEISMICITY
Magnitude 4 or greater
(1907 – present)
• Average of 20
recorded per day
• 100 felt
earthquakes per
year
• 91 destructive
quakes for past
400 years
Hazards associated with Earthquake:
1. Ground Shaking
2. Ground Rupture
3. Liquefaction
4. Landslide
5. Tsunami
Tracks of Tropical Cyclones
Philippines
Hazards associated with Tropical Cyclone:
1. Strong Winds
2. Storm Surge
3. Heavy Rainfall
4. Flood
5. Flashflood
6. Landslide
http:// www.ndrrmc.gov.ph
http:// www.ndrrmc.gov.ph

Task force was created headed by NDRRMC, with OCD,
PHIVOLCS, PAGASA, MGB and NAMRIA as members;
National Disaster Risk
Reduction and
Management Council

NAMRIA shall:

Generate digital base maps to be used by the other
agencies for multi-hazard and risk mapping;

Standardize map layout and printing for distribution;

Publish the information in the Philippine Geoportal.
http:// www.namria.gov.ph
NAMRIA provides 1:50,000 topographic base maps to MGB, PHIVOLCS and
PAGASA for use in the production of multi-hazard maps under the READY
Project
Other Hazards:
Earthquake Induced Landslide
Volcanic Eruption
Liquefaction
Ground Shaking
Storm
Ground Rapture
surge
Severe Wind
Tsumani
Flood hazard
Rain-induced
Landslide
Unified Mapping Project
3D Model
IfSAR - DTM
VHRSI
Global Cloud Belt
&
Topographic
Base Map
http:// www.geoportal.gov.ph
Orthorectified Radar
Image (ORI)
Interferometric
Synthetic
Aperture Radar
(IfSAR)
Digital Terrain Model
(DTM)
Digital Surface Model
(DSM)
3D Model of Tacloban City from
IfSAR
Hazard Maps
Flood
Severe Wind
Ground
Shaking
Risk Maps
Estimated
# of Life
Threatening
Injuries
Estimated
Estimated
##of
of
Fatalities
Slight Injuries
Damage
Floor CostHomes
Population
with Inundated
 the realization of the
National Spatial Data
Infrastructure (NSDI)
that envisions a common
technology-based
facility for sharing of
and access to geospatial
information.
http:// www.geoportal.gov.ph
Objectives
 To provide a platform for
ICT-and GIS-based
projects, collaboration,
resource optimization
and R & D initiatives.
 Carries the “One Nation
One Map” advocacy of
government that
promotes one common
multiscale basemap.
Conceptual Framework
Spatial Data Framework
Hazard areas - Phivolcs/PAGASA/MGB
Environment data - DENR
Barangay boundaries - LGUs
Operational Layers
Precinct Districts - Comelec
Data specific to the functions of
each organization
Parcels – LMB/LRA
Health Centers - DOH
Road Network – DPWH/DOTC
School Locations - DepEd
Roads
Boundaries
Geodetic Control Points
DEM/DSM
Building Footprints
Orthoimage
NAMRIA Basemap
Data commonly used by most
organizations
Current Stakeholders
http:// www.geoportal.gov.ph
Data Uploading Options

Submit physically the spatial data and metadata to NAMRIA
for uploading;

Use the Philippine Geoportal Map Builder module;

Provide NAMRIA with the link to Agency’s web map service.
Data Downloading
Start
Client sends Letter of Request to
NAMRIA Administrator indicating the
details of request
Client will input PASSCODE
to download the data
NAMRIA will process
request
Client will receive an email
with PASSCODE, download
link, and forms to be filledout (MOU, Order Slip)
End
Data Sharing
2015 GAA: Section 24
Open Government Data
Departments, bureaus, and offices of the National
Government, including Constitutional Offices enjoying
fiscal autonomy, SUCs, and GOCCs shall adopt a policy of
openness for all datasets created, collected, processed,
disseminated, or disposed through the use of public funds
to the extent permitted by applicable laws and subject to
individual privacy, confidentiality, national security, or
other legally-mandated restrictions. Openness means that
datasets published by agencies shall be machine-readable,
in open formats, and released with open licenses.
The Way Forward
Draft Executive
Order for the
Establishment of the
Philippine
Geospatial Data
Infrastructure
The Way Forward
Conclusion:
Thank You
detailed up-to-date and high-resolution geospatial
data covering the entire country is vital for use in
geohazard mapping for post-disaster relief, rescue and
rehabilitation efforts of the government.