Seguimiento del cambio global en el lago Enol: procesos geomorfológicos en las márgenes favorecidos por la actividad antrópica

Abstract

Lake Enol is a mountain glacial lake placed at the ‘Picos de Europa’ National Park (Asturias, Northern Spain). The most significant geomorphological processes in its drainage basin are due to rill erosion and solifluxion. The increase in erosion by antropic activity induces changes in the aquatic system (turbidity, organic matter). To evaluate the order of magnitude of the volume of sediment and organic matter incorporated into the lake from the margins, the multitemporal comparison of high resolution MDE is being used, obtained by means of automatic photorestitution of images from Two sources: oblique aerial photographs taken with drones and georeferenced with total station and differential GPS; and vertical field photographs from fixed support for eight transversal profiles along the two main gullies. With the data obtained, in collaboration with the National Park managers, corrective measures can be designed to minimize the impacts caused by global change in this lake.