Alaska Glacier Erosion Are High but are they representative and robust?
	Peak rates of glacial erosion, inferred from sediment yields of tidewater glaciers, surpass those of fluvial erosion by up to an order of magnitude.  They have recently come into question, however, because •  Biases inherent in the approach (effect of rapid retreat; sediments sloughing off fjord walls) •  Essentially nothing is known about characteristics of the glaciers or of the drainage basins that cause these high sediment yields. •  Little is known about whether peak erosion rates, found in southern Alaska, are representative of other glacial-tectonic settings.