FAQ
How can ArkoTech's ONYX solutions provide assistance for LGUs Facing Frequent Flooding (Urban or Downstream)?
1. Real-Time Flood Extent Mapping
(Any Weather, Day or Night)
LGUs can deploy rescue, reroute traffic, and activate evacuation based on actual ground truth, even during heavy rain or zero visibility.
Using SAR imagery, LGUs can see:
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Which roads, barangays, and assets are underwater
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Depth indicators based on water backscatter patterns
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Areas cut off or isolated
2. Drainage & Waterflow Obstruction Monitoring
It gives LGUs the root cause analysis of flooding — fixing drainage, clearing obstructions, enforcing easements — beyond just forecasting.
Using high-resolution optical + change detection, ONYX identifies:
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Blocked drainage lines
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Illegal structures narrowing waterways
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Siltation or sediment build-up
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New encroachments in easements
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Garbage accumulation in flood-prone canals
3. Urban Flood Infrastructure Monitoring
Allows LGUs to prioritize engineering interventions (drainage redesign, pumping, widening, dredging).
Using 15–30 cm imagery + DTM/DSM, ONYX can map:
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Areas where water pools due to elevation issues
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Low-lying roads, underpasses, and depressed zones
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Roof height + building density affecting water routing
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Flood-control structures (levees, gates, pumps) and their condition
4. Catchment Area & Upstream Behavior Tracking
Flooding is often caused upstream — ONYX gives visibility before water reaches downstream urban centers.
ONYX allows LGUs to monitor:
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Upstream developments increasing runoff (new residential, quarrying, denudation).
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Deforestation and land-use change with hyperspectral and optical imagery.
5. Post-Flood Damage Assessment
(Faster than Field Surveys)
LGUs can process payouts, repairs, and rehab planning quickly and accurately.
Optical + SAR change detection helps LGUs:
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Identify damaged homes, buildings, roads, crops
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Compute affected populations and assets
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Create evidence for disaster funds and insurance
6. Flood Hotspot Evolution Monitoring
(Monthly/Quarterly)
Data-driven planning instead of guesswork.
ONYX’s repeat monitoring allows LGUs to:
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Understand how flood patterns change over time
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Detect if mitigation projects are working
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Prioritize barangays for infrastructure upgrades
Summary: