Table 1 Modeling parameters for the three-dimensional discrete element model with simplified fjord geometries
From: Seasonal changes of mélange thickness coincide with Greenland calving dynamics
Symbol | Value | Unit | Variable |
|---|---|---|---|
L | 3 | km | Initial length of the ice mélange |
Hini | [30, 380] with a mean step size 15 | m | Initial thickness of the ice mélange |
Np | [1634, 15,264] with a mean step size 1238 | Total number of icebergs in a simulation | |
W | 1 | km | Fjord width |
Vter | 43.2 | m/day | Terminus velocity |
Cw | 0.5 | Dimensionless drag coefficient for icebergs in seawater | |
E | 2.6 | MPa | Iceberg elastic modulus |
\({a}_{\min }\) | 17.7 | m | Minimum side length of a cubic iceberg |
\({a}_{\max }\) | 141.4 | m | Maximum side length of a cubic iceberg |
dr | 150 | m | Spacing between bulges on the rugged wall |
ar | 60 | m | Side length of bulges on the rugged wall |
hr | 20 | m | Thickness of bulges on the rugged wall |
Δt | 0.1 | s | Modeling time step |
δtbuoy | 5 | s | Time step to update the buoyant force for icebergs |
μ | 0.3 | Kinetic friction coefficient between the particle and the wall | |
μp | 1.0 | Kinetic friction coefficient between particles | |
β | 0.7 | Iceberg critical damping ratio | |
ν | 0.3 | Iceberg Poisson’s Ratio | |
ρi | 910 | kg/m3 | Iceberg density |
ρw | 1028 | kg/m3 | Seawater density |
