Fig. 2: Monitoring of spillway activation on key dates illustrated through PlanetScope images. | Communications Earth & Environment

Fig. 2: Monitoring of spillway activation on key dates illustrated through PlanetScope images.

From: Pre-failure operational anomalies of the Kakhovka Dam revealed by satellite data

Fig. 2

a, b Before and after bridge damage near the right bank of the spillway on November 11, 2022. c Small portion of the spillway activated on November 14, 2022. d The spillway structure started overtopping on April 23, 2023. e The bridge near the left bank began to show signs of compromise on June 2, 2023. f Additional parts were missing by June 4, 2023. The white polygons represent the focus areas of anomaly events. The white arrow in (a) indicates the extent of the spillway structure. Image © 2022–2023 Planet Labs PBC.

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