HR: 16:00h
AN: C22B-01    [PDF]
TI: Alpine Glacier Mass Balance Modelling: Development and Application of an Indexed Temperature and Radiation Model
AU: * Anslow, F S
EM: fsanslow@ucalgary.ca
AF: University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4 Canada
AU: Marshall, S J
EM: shawn.marshall@ucalgary.ca
AF: University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4 Canada
AB: A mass balance model utilizing a temperature and radiation indexed approach is presented addressing the need for high temporal and spatial resolution capabilities with moderate demand for input data. This fully distributed model relies on inputs of short wave radiation, temperature, and elevation fields and incorporates an albedo submodel and surface shading algorithms to compute net short wave radiation and a time varying lapse rate for temperature distribution. Model development is described and performance is compared to a fixed DDF positive degree-day model and a temperature and radiation variable DDF positive degree-day model. We show that the described indexed approach is effective at capturing melt on hour-long timescales and has application to mass balance and discharge studies on alpine glaciers.
DE: 1655 Water cycles (1836)
DE: 1827 Glaciology (1863)
DE: 1863 Snow and ice (1827)
DE: 3322 Land/atmosphere interactions
SC: Cryosphere [C]
MN: 2003 Fall Meeting