matBRAT - Beaver Restoration Assessment Tool (Matlab based - version 1 to 2.03)

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4. Calculating Upstream Drainage Area

Task 1: Deriving Upstream Drainage Area



Task 2: Capture Maximum Flow Accumulation Values on the Stream Network

In the pilot study we found that the stream network did not always precisely overlay the maximum flow accumulation value due to the coarseness of the input data. To resolve this issue in the statewide run we used a segmented 100 m buffer, and zonal statistics to ensure the maximum flow accumulation values for each buffered segment were captured.

To capture the maximum flow accumulation value:

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