Greenland freshwater runoff for glaciated and non-glaciated landscapes – distribution and trends, 1960-2010
Figure 1: (a) Greenland simulation domain with topography (500-m contour interval) and the location of the coastal and GrIS meteorological tower stations (red dots) used for the simulations. The GrIS is marked with a color scale from gray to white (related to elevation), and the area outside the GrI...
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.682.3924 http://conference2011.wcrp-climate.org/posters/C17/C17_Mernild_T153A_0.pdf |
| Summary: | Figure 1: (a) Greenland simulation domain with topography (500-m contour interval) and the location of the coastal and GrIS meteorological tower stations (red dots) used for the simulations. The GrIS is marked with a color scale from gray to white (related to elevation), and the area outside the GrIS with black color. (b) Simulated individual Greenland drainage basins (represented by multi colors). (c) A close-up example of the individual drainage basins and flow network for the Helheim Glacier region, at the innermost part of the Sermilik Fjord, SE Greenland. The Greenland simulation domain, individual modeled drainage catchments, and a detailed example of the simulated flow network for the Helheim Glacier region in SE Greenland, are illustrated in Figure 1. HydroFlow divided the GrIS into ~400 individual drainage basins and Greenland into ~3,150 individual basins (Figure 1b). Each of these basins include their own flow network that drains runoff to down-slope areas and into the adjacent seas (Figure 1c). For Greenland, the individual simulated drainage basins range in area from 50 km2 to 154,800 km2 (averaging ~700 km2), with 85 % of the drainage basins equal to or less than 250 km2; these relatively small basins cover 10 % of the total Greenland area, and are mainly located in the land area between the GrIS and the oceans. Figure 2: (a) GrIS simulated net precipitation (P), surface mass balance (SMB = ΔS), and surface runoff (R) time series for 1960–2010; and (b) simulated surface GrIS runoff, land strip area (area outside the GrIS) runoff, and Greenland runoff time series for 1960–2010. The Agung |
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