Recent mapping of the Tropical Cyclone Senyar aftermath reveals the scale of inundation in Aceh Tamiang. By analyzing Sentinel-1 VH SAR backscatter shifts between October and December 2025, approximately 3,149 hectares of flooded land were identified (shown in grey).
To assess humanitarian risk, the flood extent was overlaid with critical infrastructure data from the Google Places API. The spatial intersection of floodwaters with health facilities (red) and education centers (blue) identify high-vulnerability zones where essential services faced the greatest disruption.
Hydrological Baseline: Aceh Tamiang River Network
The dashboard below shows a permanent water baseline for Aceh Tamiang by integrating HydroSHEDS and JRC Global Surface Water datasets. By visualizing the region’s frequent river networks and natural drainage patterns, the map provides the necessary hydrological context to distinguish between seasonal water bodies and temporary inundation. This foundational data serves as a critical tool for long-term water management and urban resilience planning in flood-prone areas.