NetMap's Technical Help Guide

Cumulative Upstream Aggregation

Cumulative Upstream Aggregation
Parameter Description:  Any hillslope (raster, e.g., fire risk, vegetation age, erosion potential etc.), at the scale of drainage wings or a portion thereof encompassed within a stream-adjacent buffer or any channel reach attribute can be aggregated (summed and area weighted) upstream. For example, a user may wish to know how much fish habitat is located downstream from any point in the channel network. See also NetMap’s Downstream Aggregation Tool.
Data Type: Line (stream layer)
Field Name:; Common Name: Cumulative Upstream Length
Field Name: UpMean; Common Name: Cumulative Upstream Mean
Field Name: UpSum; Common Name: Cumulative Upstream Sum
Units: variable
NetMap Module/Tool: Basic Tools/Upstream Aggregation

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