exercises week 8 assignment 1

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Exercises: Week 8 Assignment
Use the data in the BlackHillsSturgis83 geodatabase to answer the following questions. Set the Environment cell size to 30 meters for all problems and make sure any masks are off:
1. Create a Boolean raster showing areas where the density of vegetation is open (DENSITY 96 is 0 or A) and the land is owned by the Forest Service (OWNER is NFS). Capture the map.
2. Create a Boolean raster showing the areas that are within 1000 meters of a primary or secondary road (TYPE = P or S). Capture your map.
3. Use Block Statistics on the slope30m raster to calculate average slopes over 300 × 300-meter areas. Then create a Boolean raster showing where the average slopes are < 10 degrees. Capture your map.
4. Imagine that you are looking for a good landfill site. Use the rasters produced in Exercises 1 to 3 to create a Boolean raster showing the areas where all three conditions are met. What is the total area of these potential sites? Capture the map.
5. The site must be at least 1 sq km in area to be considered for the landfill. Create a helpful map of the sites meeting this criterion, labeled with the site area in square kilometers and including helpful information, such as streams and roads, for the final selection. How many potential sites have the minimum area? (Hint: Convert the sites to polygons.)
6. Which geological unit has the highest average slope? Which has the lowest? What is the average slope for each one?
7. The canopy raster contains the forest canopy percentage. Create a map of wshds2c showing the average canopy percentage over each watershed. Capture your map.
8. Prime harvestable timber in the Black Hills has SSTAGE96 = 4C or 5 and is more than 200 meters from a stream. How much good timber is left, in square kilometers? Create a map showing the timber and streams. Capture the map.
9. Which of the summits has the highest elevation? Which has the lowest?
10. Create a raster with an integer canopy index that ranges from 1 to 5. Create another raster with an integer slope index that ranges from 1 to 5. From these, produce a raster showing an erosion potential index based on canopy and slope. Capture the map. (Hint: Use Reclassify.)”
Exercises: Week 8 Assignment
Use the data in the BlackHillsSturgis83 geodatabase to answer the following questions. Set the Environment cell size to 30 meters for all problems and make sure any masks are off:
1. Create a Boolean raster showing areas where the density of vegetation is open (DENSITY 96 is 0 or A) and the land is owned by the Forest Service (OWNER is NFS). Capture the map.
2. Create a Boolean raster showing the areas that are within 1000 meters of a primary or secondary road (TYPE = P or S). Capture your map.
3. Use Block Statistics on the slope30m raster to calculate average slopes over 300 × 300-meter areas. Then create a Boolean raster showing where the average slopes are < 10 degrees. Capture your map.
4. Imagine that you are looking for a good landfill site. Use the rasters produced in Exercises 1 to 3 to create a Boolean raster showing the areas where all three conditions are met. What is the total area of these potential sites? Capture the map.
5. The site must be at least 1 sq km in area to be considered for the landfill. Create a helpful map of the sites meeting this criterion, labeled with the site area in square kilometers and including helpful information, such as streams and roads, for the final selection. How many potential sites have the minimum area? (Hint: Convert the sites to polygons.)
6. Which geological unit has the highest average slope? Which has the lowest? What is the average slope for each one?
7. The canopy raster contains the forest canopy percentage. Create a map of wshds2c showing the average canopy percentage over each watershed. Capture your map.
8. Prime harvestable timber in the Black Hills has SSTAGE96 = 4C or 5 and is more than 200 meters from a stream. How much good timber is left, in square kilometers? Create a map showing the timber and streams. Capture the map.
9. Which of the summits has the highest elevation? Which has the lowest?
10. Create a raster with an integer canopy index that ranges from 1 to 5. Create another raster with an integer slope index that ranges from 1 to 5. From these, produce a raster showing an erosion potential index based on canopy and slope. Capture the map. (Hint: Use Reclassify.)”

 
 
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