?Cold Tropics?: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground-Penetrating Radar and Geoelectrical Soundings - Chacca,V.; Pellitero,R.; Ribolini,A.; Úbeda,J.; del Río,L.M.; Vila,R.; Vilca,O. (Permafrost and Periglacial Processes, 2026)