ESA Sentinel-1 Views the Laos Dam Collapse from Space
On July 25, 2018, the Sentinel-1 satellite from the European Space Agency (ESA) Copernicus program captured a clear image of the collapsed Xe-Pian Xe-Namnoy dam and resulting floods. The imagery within the map viewer shows a drastic drop in the reservoir level, the impacts of which were felt on villages downstream.
NASA and SERVIR-Mekong processed satellite imagery to estimate the extent of the flooded areas, particularly along the Xe Pian River and village of Sanamxai along the Xe Khong River in Attapeu province. Since the dam failure on July 23, cloudy skies have prevented clear views of the affected area. A synthetic aperture radar (SAR) sensor onboard Sentinel-1 offers cloud-penetrating technology, providing this first clear view.
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