Feasibility of Using UMRR Land Cover Data to Map Delta Formations in Backwaters of the Upper Mississippi River: Scripts
Summary
This Python script creates a shapefile containing features that are deltas. Data inputs: LCU data for 1989, 2000, and 2010 for Pools 3 through 13 (https://doi.org/10.5066/F77M0771, F73X85X2, F77942QN); Aquatic Area Level 2 data for Pools 3 through 13 (http://dx.doi.org/10.5066/F7VD6WH8). Pre-script procedures: Setup a tool in an ArcMap toolbox to call the script. Change directory names as needed in script. Intersect the three LCU datasets for all pools. Critical processing steps of script: 1. Remap attributes into three LCU classes (0 = Salix and Wm, 1=land, 2=water). 2. Remap attributes into three change classes (0 = no change - terrestrial, 2 = no change - aquatic, 3 = change from aquatic to terrestrial). 3. Dissolve on the [...]
Summary
This Python script creates a shapefile containing features that are deltas.
Data inputs: LCU data for 1989, 2000, and 2010 for Pools 3 through 13 (https://doi.org/10.5066/F77M0771, F73X85X2, F77942QN);
Aquatic Area Level 2 data for Pools 3 through 13 (http://dx.doi.org/10.5066/F7VD6WH8).
Pre-script procedures:
Setup a tool in an ArcMap toolbox to call the script.
Change directory names as needed in script.
Intersect the three LCU datasets for all pools.
Critical processing steps of script:
1. Remap attributes into three LCU classes (0 = Salix and Wm, 1=land, 2=water).
2. Remap attributes into three change classes (0 = no change - terrestrial, 2 = no change - aquatic, 3 = change from aquatic to terrestrial).
3. Dissolve on the three change classes.
4. Remove polygons < 1000 sq. meters for change Class 3.
5. Intersect change Class 3 polygons with polygons of the three LCU classes.
6. Calculate LCU Class 1 length / change Class 3 perimeter for each polygon.
7. Select change Class 3 polygons meeting a land connection criteria.