1. Characterizing late Quaternary lake-level variability in Lago de Tota, Colombian Andes, with CHIRP seismic stratigraphy Author Gibson, Derek K., Bird, Broxton W., Wattrus, Nigel J., Escobar, Jaime, Ahmed, Maliha, Fonseca, Hector, Velasco, Felipe, Fernandez, Alejandro, and Polissar, Pratigya J. Published 2019 Full Text View/download PDF