HR: 0800h
AN: H31C-03    [Abstracts]
TI: A micro-hydrometeorological study on the Peyto Glacier.
AU: * Munro, D S
EM: scott.munro@utoronto.ca
AF: Department of Geography, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
AB: A micrometeorological experiment was conducted in the summer of 2008, at Peyto Glacier, during three periods of dry, warm weather and one of moist, cool weather. The data include a breakdown of net radiation into its short- and long-wave components, as well as wind speed, temperature and humidity profile data for use in bulk transfer estimates of sensible heat and moisture transfer. In addition, a micro-hyrological experiment was conducted, the data comprising sonic sounder measurements of ablation and stage level records of discharge from a supra-glacial catchment. As expected, there is short-term divergence between energy budget and ablation estimates of meltwater production because of weathering crust development. Also, the conversion of stage level data into discharge from a supra-glacial catchment presents challenges, not the least of which is to define the area of the catchment. Nevertheless, it is clear that peak discharge can lag peak meltwater energy input by periods of four to six hours. This suggests that a substantial part of the delay in runoff from a glacierized basin is tied up in ice surface hydrological processes.
DE: 0720 Glaciers
DE: 0764 Energy balance
DE: 1814 Energy budgets
DE: 1827 Glaciology (0736, 0776, 1863)
DE: 1840 Hydrometeorology
SC: Hydrology [H]
MN: 2009 Joint Assembly