Calculates Gage watersheds grid. Each grid cell is labeled with the identifier (from column id) of the gage to which it drains directly without passing through any other gages.
Command Prompt Syntax:
mpiexec -n <number of processes> GageWatershed -p <pfile> -gw <gwfile> [ -o <outletfile>] [ -lyrname <layer name>] [ -lyrno <layer number>] [ -id idfile]
pfile: File name for D8 flow direction grid (input)
gw: File name for gage watersheds grid (output)
idfile: File name for text file giving watershed downslope connectivity (output)
outletfile: input outlets file (OGR readable dataset)
layer name: OGR layer name if outlets are not the first layer in outletfile (optional)
layer number: OGR layer number if outlets are not the first layer in outletfile (optional)
Layer name and layer number should not both be specified.
GageWatershed (Input_D8_Flow_Direction_Grid,
Input_Gages_file, Input_Number_of_Processes, Output_GageWatershed,
{Output_Downstream_Identefier})
| Parameter | Explanation | Data Type |
|---|---|---|
| Input_D8_Flow_Direction_Grid | Dialog
Reference A grid of D8 flow directions which are defined, for each cell, as the direction of the one of its eight adjacent or diagonal neighbors with the steepest downward slope. There is no python reference for this parameter. |
Raster Layer |
| Input_Gages_file | Dialog
Reference A point feature defining the gages to which watersheds will be delineated. This feature should have a colmun 'id'. Grid cells draining directly to each point in this feature will be labeled with this id. There is no python reference for this parameter. |
Feature Layer |
| Input_Number_of_Processes | Dialog
Reference The number of stripes that the domain will be divided into and the number of MPI parallel processes that will be spawned to evaluate each of the stripes. There is no python reference for this parameter. |
Long |
| Output_GageWatershed | Dialog
Reference This output grid identifies each gage watershed. Each grid cell is labeled with the identifier (from column id) of the gage to which it drains directly without passing through any other gages. There is no python reference for this parameter. |
Raster Dataset |
| Output_Downstream_Identefier (Optional) | Dialog
Reference Text file giving watershed downslope connectivity There is no python reference for this parameter. |
File |
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