Philippines - Modelled Storm Surge Map of Agusan Del Norte - 2 metres height - NOAH

Storm Surge Hazard maps based on predicted storm surge height.

Storm Surge Advisory 1 (SSA1): 2 meters

HAZ values in the attribute table corresponding to the following:

1. Knee deep surge height
2. Chest deep surge height
3. Surge height above the head

The project is a DOST Grant-In-Aid project under Project NOAH implemented by PAGASA. The project aims to enhance the disaster-forecasting capabilities of PAGASA by beginning to generate detailed maps of storm surge and inundation susceptibilities by using Japan Meteorological Agency storm surge model in simulating 721 tropical cyclones that entered the Philippine Area of Responsibility from 1951-2013. Maximum tide levels from the WXTide software were added to the result of storm surge simulation. The storm tide levels were categorized into four groups based on their peak height to create the SSA – SSA 1 (2.01m to 3m), SSA 2 (3.01m to 4m), SSA 3 (4.01m to 5m), and SSA 4 (5m and above). The time series for each advisory level was used in inundation modelling using FLO-2D, a two-dimensional flood modelling software that uses continuity and dynamic wave momentum equation. The project completed all 67 coastal provinces in the country using a 1:20,000 scale Digital Terrain Model from NAMRIA as a base map for the storm surge hazard simulations.

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