Field measurements and modeling simulations of glacier mass balance and watershed hydrology are presented from four Alaska basins: Valdez Glacier Stream, Susitna River, Phelan and Jarvis Creek. The differing trajectories of long-term runoff projections suggest that it is crucial to account for glacier retreat as a negative feedback runoff projections and that watersheds with small glacier coverage (~5 %) may, unlike high-glacier coverage basins, experience a future reduction in decadal-averaged peak annual mean daily runoff.
