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Maxmoist user-defined value #217

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Jul 27, 2024
Merged

Maxmoist user-defined value #217

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f65fc83
max_moist implementation
christavanijzendoorn Jul 26, 2024
8f60d47
Update constants.py
christavanijzendoorn Jul 26, 2024
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2 changes: 2 additions & 0 deletions aeolis/constants.py
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Expand Up @@ -291,6 +291,8 @@
'Cl_gw' : 0.7, # [m] Groundwater overheight due to runup
'in_gw' : 0, # [m] Initial groundwater level
'GW_stat' : 1, # [m] Landward static groundwater boundary (if static boundary is defined)
'max_moist' : 10., # NEWCH # [%] Moisture content (volumetric in percent) above which the threshold shear velocity is set to infinity (no transport, default value Delgado-Fernandez, 2010)
'max_moist' : 10., # [%] Moisture content (volumetric in percent) above which the threshold shear velocity is set to infinity (no transport, default value Delgado-Fernandez, 2010)
'theta_dyn' : 33., # [degrees] Initial Dynamic angle of repose, critical dynamic slope for avalanching
'theta_stat' : 34., # [degrees] Initial Static angle of repose, critical static slope for avalanching
'avg_time' : 86400., # [s] Indication of the time period over which the bed level change is averaged for vegetation growth
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6 changes: 4 additions & 2 deletions aeolis/threshold.py
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Expand Up @@ -234,9 +234,11 @@ def compute_moisture(s, p):
else:
logger.log_and_raise('Unknown moisture formulation [%s]' % p['method_moist'], exc=ValueError)

th_mg = (p['max_moist']/100 * p['rhow'] / (p['rhog'] * (1. - p['porosity'])))
# should be .04 according to Pye and Tsoar
# should be .64 according to Delgado-Fernandez (10% vol.)
ix = mg > 0.064
# should be .064 according to Delgado-Fernandez (10% vol.)
# .097 corresponds to 15%
ix = mg > th_mg
s['uth'][ix] = np.inf

return s
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