Dynamic Mass Loss from Greenland’s Marine-Terminating Peripheral Glaciers

Balance has decreased rapidly over the last two decades, exceeding mass loss from the Greenland and Antarctic ice sheets. In Greenland, peripheral glaciers and ice caps (GICs) cover only ~5% of Greenland’s area but contributed ~20% of the island’s ice mass loss between 2000-18. Although Greenland GIC mass loss due to surface meltwater runoff has been estimated using atmospheric models, mass loss due to changes in ice discharge into oceans (i.e., dynamic mass loss) remains unquantified. We use the flux gate method to estimate discharge from Greenland’s 585 marine-terminating peripheral glaciers between 1985-2018, and compute dynamic mass loss as the discharge anomaly relative to the 1985-98 period. Here we provide the coordinates for the flux gates used to construct discharge time series for these glaciers.