feat: add LgarParams

python/ngen_conf/src/ngen/config/lgar.py

@@ -1,13 +1,58 @@
 from __future__ import annotations
 
-from pydantic import Field
+from typing import Optional
+from pydantic import BaseModel, Field
 
 from .bmi_formulation import BMICxx
 
 
+class LgarParams(BaseModel):
+    smcmin: Optional[float]
+    """
+    residual volumetric water content
+    Unit: cm3/cm3
+    """
+    smcmax: Optional[float]
+    """
+    water content of the soil at natural saturation;
+    Unit: cm3/cm3
+    """
+    van_genuchten_alpha: Optional[float]
+    """
+    van Genuchten parameter related to inverse of air entry pressure
+    Unit: 1/cm
+    """
+    van_genuchten_n: Optional[float]
+    """
+    van Genuchten parameter related to pore size distribution
+    Unit: -
+    """
+    hydraulic_conductivity: Optional[float]
+    """
+    saturated hydraulic conductivity of the soil
+    Unit: cm/h
+    """
+    soil_depth_layers: Optional[float]
+    """
+    soil layer thickness
+    Unit: cm
+    """
+    ponded_depth_max: Optional[float]
+    """
+    maximum allowed ponded water depth
+    Unit: cm
+    """
+    field_capacity: Optional[float]
+    """
+    negative capillary head representing field capacity, used in reduction of PET to AET
+    Unit: cm
+    """
+
+
 class LGAR(BMICxx):
     """A BMIC++ implementation for LGAR module"""
 
+    model_params: Optional[LgarParams]
     registration_function: str = "none"
     main_output_variable: str = "precipitation_rate"
     model_name: str = Field("LGAR", const=True, alias="model_type_name")