Landlab OverlandFlow
Landlab 2.11 (CSDMS), its OverlandFlow component: the local-inertial 2D flood scheme of de Almeida et al. (2012), written independently in NumPy, with its defaults.
Research code, run with the settings of its own examples. Rank #7 on the leaderboard, OpenHydro rating 792 (95 % interval 640 to 885) over 9 tests; median difference 13 %. Score cards from: Landlab 2.11.0 OverlandFlow.
| Test | Difference, rank | Checks |
|---|---|---|
| Gentle backwater in a channel A1F-001 | #14= 0.085 % off of 15 models | • Average depth error 0.77 mm off; · Water conserved 0.065 % error |
| Dam break onto dry ground A1F-010 | #18 32 % off of 20 models | • Flood front 119 m behind exact; · Water conserved 0.002 % error |
| Dam break into shallow water A1F-011 | #14= 3.1 % off of 20 models | • Average depth error 1.7 cm off; · Water conserved 0.014 % error |
| Calm flow over a hump A1F-040 | #7 28 % off of 12 models | • Average depth error 56 cm off; • Average flow error 1.24 m²/s off |
| Flow speeding up over a hump A1F-041 | #7= 52 % off of 12 models | • Average depth error 33 cm off; • Average flow error 0.46 m²/s off |
| Hump with a hydraulic jump A1F-042 | #7 46 % off of 12 models | • Average depth error 10 cm off; • Average flow error 0.0835 m²/s off |
| Still lake around an island A1F-043 | #13 13 % off of 13 models | • Worst velocity error 0.132 m/s off; • Average depth error 3.1 mm off |
| Water sloshing in a bowl A2A-001 | #9 1.1 % off of 9 models | • Average depth error 0.35 mm off; · Water conserved 0.25 % error |
| Steady flow over a shaped bed A2A-010 | #10= 0.08 % off of 12 models | • Average depth error 0.73 mm off; · Water conserved 0.053 % error |