L A N T A W

initialising…
Building Cagayan de Oro block by block, then draping real UP NOAH flood-hazard data over 27,000 rooftops.
Experimental · Urban scale
Exploratory model - not an official hazard map. Flood layers are legacy DOST–UP DREAM / Phil-LiDAR 1 products published around 2017 and do not reflect later construction or flood-control works. Building heights are model estimates, not surveys. This shows hazard, not risk, and is not accurate for any individual building - verify with your LGU and current official maps before any decision.
LANTAW · URBAN

Cagayan de Oro

The river mouth on Macajalar Bay - ground zero of Tropical Storm Sendong (Dec 2011). Real flood-hazard maps, rendered onto every building.

Flood return period
100-yr flood = ~1% chance each year (not “once a century”)
Time of day
Building height ×1.0
Flood depth (Phil-LiDAR)
High > 1.5 m
Medium 0.5–1.5 m
Low < 0.5 m
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Legacy Phil-LiDAR 1 hazard model · published c. 2017 · excludes later works
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About this scene

A block-scale experiment: every building footprint in a ~4 km window over downtown Cagayan de Oro, extruded in 3D and coloured by whether it floods.
Flood hazard - UP NOAH / DOST Phil-LiDAR 1 flood-hazard maps (10 m), served live from the DREAM LiPAD GeoServer as WMS tiles. 5 / 25 / 100-year return periods.
Buildings - 27,691 OpenStreetMap footprints, extruded with height estimates from Google Open Buildings 2.5D (Temporal, 2023; effective resolution ~4 m). 76% receive a model-estimated height (median ~4.5 m, capped near 90 m); the remainder use a footprint-size fallback. Google notes alignment drift, tiling artifacts and potentially larger height errors in the Global South.
Imagery - Esri World Imagery. Ground is flattened to the delta (30 m SRTM is too coarse under a dense city).
Story - On 16 Dec 2011, Sendong (Washi) sent the Cagayan de Oro river over its banks overnight, killing over 1,200 across the region. The 100-year layer shows why: almost the entire downtown delta is in the floodplain.
Data: © OpenStreetMap contributors (ODbL) · Google Open Buildings 2.5D (CC BY 4.0 / ODbL) · Includes Copyrighted Material of Phil-LiDAR Program & DREAM, All Rights Reserved · Esri, Maxar. Prototype - not for operational use.
Flood: DOST–UP DREAM · Phil-LiDAR 1 (LiPAD), All Rights Reserved · Buildings: © OpenStreetMap contributors · Estimated heights: Google Open Buildings 2.5D · Imagery: Esri World Imagery