East Greenland freshwater runoff to the Greenland‐Iceland‐Norwegian Seas 1999–2004 and 2071–2100

摘要: In this paper, we quantify the terrestrial flux of freshwater runoff from East Greenland to Greenland-Iceland-Norwegian (GIN) Seas for periods 1999–2004 and 2071–2100. Our analysis includes separate calculations Ice Sheet (GrIS) land strip area between GrIS ocean. This study is based on validation calibration SnowModel with in situ data only two long-term permanent automatic meteorological hydrometric monitoring catchments Greenland: Mittivakkat Glacier catchment (65°N) SE Greenland, Zackenberg (74°N) NE Greenland. was then used estimate all Modelled glacier recession both period accordance observations, dominates annual by 30–90%. Average Mittivakkat, ∼3·7 × 10−2 km3 y−1, Zackenberg, ∼21·9 dominated percentage cover. input North Atlantic Ocean ∼440 y−1 (1999–2004), contributions ∼40% ∼60% GrIS. contributes ∼10% total export Arctic Sea. The future (2071–2100) climate impact assessment Intergovernmental Panel Climate Change (IPCC) A2 B2 scenarios indicates an increase mean air temperature 2·7 °C today's values. For 2071–2100, modelled be ∼650 y−1: ∼30% ∼70% approximately ∼50% more than double values, largely increasing rather changes net precipitation. Copyright © 2008 John Wiley & Sons, Ltd.