How to Use Project NOAH

Prepared by AMF Lagmay

DOST-Project NOAH

DOST Project NOAHNationwide Operational Assessment of Hazards

Source: Interaksyon

Typhoon Pablo on 4 December 2012

AVOIDING DISASTERS

August 21Friday

August 22Saturday

Department of Science and TechnologyNationwide Operational Assessment of Hazards

DOPPLER RADAR

Yolanda Doppler Radar image as it traverses the central Philippines region

Department of Science and TechnologyNationwide Operational Assessment of Hazards 17

DOPPLER RADAR

• Aparri• Subic• Tagaytay• Virac• Cebu• Hinatuan

Cagayan de Oro City

Department of Science and TechnologyNationwide Operational Assessment of Hazards

Storm Surge

NOAH Storm Surge Project, 2013

Community scale maps, development planning, emergency planning, identifying blocked access routes, evacuation routes, safe a

Safe Areas: 0.01%

MGB Landslide & Flood Hazard MapOrmoc City, Leyte

From Landslide and Flood hazards

Safe Areas: 36.87%

NOAH Landslide, Flood and Storm Surge Hazard MapOrmoc City, Leyte

From Landslide, Flood and Storm Surge hazards

Safe Areas: 0.00%

MGB Landslide & Flood Hazard MapKananga, Leyte

From Landslide and Flood hazards

Safe Areas: 41.04%

NOAH Landslide & Flood Hazard MapKananga, Leyte

From Landslide and Flood hazards

MGB Landslide & Flood Hazard MapTacloban, Leyte

Safe Areas: 0.02%

TACLOBAN AREA – 106 SQ KMLANDSLIDE AREA – 61.7 SQ KMFLOOD AREA – 41.8 SQ KM

From Landslide and Flood hazards

NOAH Landslide, Flood & Storm Surge Hazard MapTacloban, Leyte

Safe Areas: 26%

TACLOBAN AREA – 106 SQ KMLANDSLIDE AREA – 50.2 SQ KMFLOOD AREA – 23.4 SQ KMSTORM SURGE AREA – 10.8 SQ KMTOTAL HAZARD AREA – 78.4 SQ KM

From Landslide, Flood and Storm Surge hazards

Summary of results – safe areas for landslide and flood hazards Location Safe areas identified by DENR-

MGB multi-hazard mapSafe areas identified by DOST-Project NOAH hazard map

Ormoc, Leyte 0.01% 40.34%

Kananga, Leyte 0.00% 41.04%

Tacloban, Leyte 0.02% 32.6%

Guiuan, Eastern Samar 9% 66.8%

Hernani, Eastern samar 6.32% 54.77%

Quinapondan, Eastern Samar 1.57% 39.79%

Salcedo, Eastern Samar 2.21% 66.35%

Gen. Mac Arthur, Eastern Samar 0.37% 38.16%

Portion of Eastern Iloilo 1.2% 56.4%

Landslide Validation in Leyte Province

Landslide inventory of DOST-Project NOAH -summary

• The landslide inventory was used for validation of the DOST Project NOAH maps

•A total of 12,588 landslide events were used for validation of the hazard maps.

•On average, the accuracy of the DOST-Project NOAH landslide maps based on the 12,588 landslide events from 2003-2014 is >95%

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94.51% of matched pixels were classified as high hazard

RMSE = 1.44 m

Make maps readily accessible to the public

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Disaster mitigation efforts against landslides is far from complete even if 100% of the country have landslide hazard maps

Make maps readily accessible to the public

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