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class
SimpleRunoff
¶
SimpleRunoff¶
terrainbento SimpleRunoff.
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class
SimpleRunoff
(grid, runoff_proportion=1.0)[source]¶ Bases:
object
Generate runoff proportional to precipitation.
SimpleRunoff populates the field “water__unit_flux_in” with a value proportional to the “rainfall__flux”.
The “water__unit_flux_in” field is accumulated to create discharge.
Examples
>>> import numpy as np >>> np.random.seed(42) >>> from landlab import RasterModelGrid >>> from terrainbento import RandomPrecipitator, SimpleRunoff >>> grid = RasterModelGrid((5,5)) >>> precipitator = RandomPrecipitator(grid) >>> runoff_generator = SimpleRunoff(grid, runoff_proportion=0.3) >>> np.round( ... grid.at_node["rainfall__flux"].reshape(grid.shape), ... decimals=2) array([[ 0.37, 0.95, 0.73, 0.6 , 0.16], [ 0.16, 0.06, 0.87, 0.6 , 0.71], [ 0.02, 0.97, 0.83, 0.21, 0.18], [ 0.18, 0.3 , 0.52, 0.43, 0.29], [ 0.61, 0.14, 0.29, 0.37, 0.46]]) >>> np.round( ... grid.at_node["water__unit_flux_in"].reshape(grid.shape), ... decimals=2) array([[ 0.11, 0.29, 0.22, 0.18, 0.05], [ 0.05, 0.02, 0.26, 0.18, 0.21], [ 0.01, 0.29, 0.25, 0.06, 0.05], [ 0.06, 0.09, 0.16, 0.13, 0.09], [ 0.18, 0.04, 0.09, 0.11, 0.14]])