Generate Point Connectivity

Description

Generate connectivity and watersheds associated to input point features.

The tool generates the following features based on the input points and Flow Direction raster:

• Drainage Line features: created by tracing downstream from every input point. The lines will be split at the points and at the junctions. A small Drainage Line segment is associated to each upstream station.
• Catchment features associated to the Drainage Lines.
• Adjoint Catchment features: this step also sets the connectivity in the Catchment features based on the lines' connectivity.
• Watershed Point features: points associated to input points (not snapped to the center of the cell).Watershed features associated to each point.
• Stream Link Raster: link grid associated to the Drainage Lines and Catchments.

Usage

Tool works on all input point features.

Parameters

Parameter Name	Data Type	Direction	Type	Dialog Reference
Input Point Features	Feature Layer	Input	Required	Input Point features to process. Must contain the HydroID field.
Input Flow Direction Grid	Raster Layer	Input	Required	Input Flow Direction Grid. Used to trace downstream from each input point feature.
Output Watershed Point Feature Class	Feature Layer	Output	Required	Output Watershed Point Feature Class. GridID stores the value of the associated Stream Link raster.
Output Watershed Feature Class	Feature Layer	Output	Required	Output Watershed Feature Class. DrainID field stores the HydroID of the associated Watershed. GridID stores the value of the associated Stream Link raster.
Output Drainage Line Feature Class	Feature Layer	Output	Required	Output Drainage Line Feature Class.
Output Catchment Feature Class	Feature Layer	Output	Required	Output Catchment Feature Class.
Output Adjoint Catchment Feature Class	Feature Layer	Output	Required	Output Adjoint Catchment Feature Class.
Output Stream Link Raster	Raster Layer	Output	Required	Output Stream Link Raster. Associated to the Catchment and Drainage Line feature classes through their GridID attribute.
Output Catchment Raster	Raster Layer	Output	Required	Output Catchment Raster.