Fig. 3: A2 check-dam feature located just northwest of A1, near Ascope, La Libertad Peru.
From: Towards an antifragility framework in past human–environment dynamics

(1) 1943 aerial photograph of the feature from the Servicio Aerofotográfico Nacional del Perú. Arrow indicating the A2 feature. (2) Google Earth Imagery of A2 feature in 2016—pre-El Niño Costero event; (a) downslope pre-Hispanic field; (b) point of moisture accumulation. (3) Google Earth Imagery of A2 feature in April 2017, just after El Niño Costero rains; (a) downslope pre-Hispanic field; (b) green vegetation clustered at the point of accumulation. (4a) Drone photograph taken in May 2023, commissioned by Ari Caramanica, just after the Yaku Cyclone flood event. (4b) detail of A2 segment with upslope vegetation clustered on the upper right corner and pre-Hispanic fields visible in left side of the photo (downslope of the feature). (5) Photograph of A2 by the Ari Caramanica, taken in 2019 from on top of the upslope berm of the feature. Google Earth 2023 CNES/Airbus.