evol - firn
- evolution of conduit
- evolution of conduit size
- evolution of englacial drainage
- evolution of glacier drainage system
- evolution of internal glacier drainage
- evolution of subglacier drainage system
- evolution of supraglacial drainage
- evorsion hollow
- excavation velocity
- exit tunnel
- expanding subglacial reservoir
- expected width of conduit
- extensive drainage system
- extremes of daily discharge
