Christa's GIS Archive

It's the last leg of the race to the end, Module 5 - Part 2. This last part of Module 5 consisted of the corridor analysis , which showcased the migration path of black bears between two sections of Coronado National Park. Several tools were utilized, similar to the first Module 5 blog post. Reclassify was used to get our values where we needed them based on the provided suitability values. To note, we had to ensure the rasters were set to a 30cm cell size. Then, we applied the Weighted Overlay tool to specify percentages for each raster (landcover was 60% while elevation and roads distance were set to 20%), followed by the Raster Calculator tool and inverting the values to prepare for the final corridor tool, which accounted for the Coronado polygon layers . The map below represents my final results. Coronado National Park Black Bear Movement. A corridor analysis of the travel pathways black bears are likely to take based on roads, elevation, and land cover. Overall, I do wish I h...

We're starting the last Module 5 on Suitability and Least Cost analysis, where we walk through several hypothetical situations to identify the best-suited conditions for construction as well as to identify conservation zones. I started these last labs with high hopes of finishing at a decent time, so I wouldn't be juggling work, classes, and traveling -- but alas, this colossal titan of a final lab separated into 4 parts/scenarios got to me and has followed me out of state. Haha! For this first half of the lab, we created two maps: equal-weighting and slope-priority, which offer different perspectives for potential construction in Jackson County, Oregon. We reclassified several rasters: landcover, soils, slope, roads, and rivers. We then used the Weighted Overlay tool to set values in a range from 1-5, with all 5 layers weighted equally at 20% each for the equal-weighted map. Afterward, we applied alternative weight values to each of the previous 5 layers, which were  more sl...