Abstract
Data for daily ice ablation on two outlets from the Greenland ice sheet, Nordbogletscher (1978-83) and Qamanarssup sermia (1980-86), are used to test a simple energy-balance model which calculates ablation from climate data. The mean errors of the model are only -1.1 and -1.3 mm water d-1 for Nordbogletscher (14 months) and Qamanarssup sermia (21 months), respectively. The larger error for Qamanarssup sermia may be due to variations in ice albedo but the model also underestimates ablation during Fohn events. According to the model, radiation accounts for about two-thirds of mean ablation for June-August at the two sites, while turbulent fluxes account for about one-third. -from Authors
Original language | English |
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Pages (from-to) | 222-228 |
Number of pages | 6 |
Journal | Journal of Glaciology |
Volume | 36 |
Issue number | 123 |
Publication status | Published - 1990 |