Creating a Summary Report (Optional)
After running the BRAT tool, it can sometimes be useful calculate additional metrics on the output. The Summary Report tool adds and calculates a number of fields that further contextualize the results of a BRAT run.
Running the Tool
Running the tool is fairly simple. The tool takes three inputs:
- The Conservation Restoration Model output network
- An optional shapefile containing points that correspond to observed beaver dams
- The name of the output If not given a beaver dam shapefile, the tool will not produce the fields that rely on dams data. Be warned, the tool will snap the points of the beaver dam shapefile to the nearest reach, which will change the file given to it. If you want to retain the original position of the beaver dams, give the tool a copy of your shapefile.
Output of the Tool
The tool produces eight new fields. Three of these fields are reliant on the dams input. The fields are as follows:
e_DamCt: The observed number of dams per segment (based on the beaver dam shape file).
e_DamDens: The number of dams per kilometer. Calculated by dividing
e_DamCtby the segment length.
e_DamPcC: The ratio between the observed dam count and the calculated existing capacity. Calculated by dividing
Ex_Categor: The category of the calculated existing capacity. It is determined based on the
oCC_EX(the calculated existing capacity), as follows:
- If 0 <
- If 1 <
- If 5 <
- If 15 <
Hpe_Categor: The category of the calculated historic capacity. It is determined based on the
oCC_HPE(the calculated historic capacity), as follows:
- If oCC_HPE = 0, Hpe_Categor = “None”
- If 0 < oCC_HPE <= 1, Hpe_Categor = “Rare”
- If 1 < oCC_HPE <= 5, Hpe_Categor = “Occasional”
- If 5 < oCC_HPE <= 15, Hpe_Categor = “Frequent”
- If 15 < oCC_HPE, Hpe_Categor = “Pervasive”
mCC_EX_Ct: The existing capacity density. Calculated by dividing
oCC_EXby the segment length.
mCC_HPE_Ct: The historic capacity density. Calculated by dividing
oCC_HPEby the segment length.
mCC_EXtoHPE: The ration between existing and historic capacity. Calculated by dividing