Although the surfaces vary between simulations, most portions of the interpolation domain drain through consistent boundaries.
At the boundary between the bulk and the source and drain diffusions, Neumann boundary conditions of continuous density gradients are imposed, due to the lack of any sources/sinks of carriers.
For applied biases of V g, Vb, Vs, and Vd, to the gate, body, source, and drain, respectively, the boundary conditions are given in the following equation: (7).
In the absence of body leakage current, the boundary chosen can be the source or the drain contact or any boundary in the path of lateral current flow, such as the boundary between the source diffusion and the body.
The disagreements among the field-scale contributing areas mapped from the 10 m LiDAR DEM and photogrammetric DEM were large, with nearly half of the study area draining to alternate field boundaries.
Simulation of drains and corresponding boundary conditions are discussed.
The catchments draining to each boundary of 7933 agricultural fields were delineated using the surface drainage patterns modeled from LiDAR data, interpolated to a 1 m, 5 m, and 10 m resolution DEMs, and from a 10 m resolution photogrammetric DEM.
Boundary conditions, river, drain, wells were well data based in the model.
Fig. 1 Study area, indicating the state of California, the boundaries of watersheds draining into the state in gray shaded relief, and the Russian River watershed boundary.
The South Forty-Foot Drain serves as a district boundary over the length where it runs roughly south to north.
The surface potential model is established by using two-dimensional solution of Poisson's equation, with essential boundary conditions near the drain and source ends.
