Monday, November 1, 2010

Lab 9b: Spatial Analysis

1. There are 99 counties in Iowa
2. Fulton County
3. There are 31 cities
4. They are 4,105.6 miles long
5.
6. 1,441,652.8 acres of urban area are within LA county
7. 522 zip codes have their centroid in LA county
8. Kitigan Zibi Indian Reserve and Akwesasne Indian Reserve

9.

Lab 9A: Spatial Analysis

Part I. Boldstad Chapter 9 and Lecture
1. Spatial scope is the extent or area of the input data that are used in determining the values at output locations. The three types of spatial scope include local operations, neighborhood operations, and global operations.
2. The two types of algebra used in selection operations are set algebra and Boolean algebra. An example of set algebra would be “<” (less than). An example of Boolean algebra would be “and”, which narrows the selection.
3. The different spatial selection operations include: adjacency, containment, dissolving, overlay analyses (clip, intersect, or union), buffer, and spatial join.

Part II. Ormsby Chapters 10 & 11
4. Yes, there is a feature dataset in the geodatabase called “LosAngeles”
5. The features present include: PtDumeQuad, Vegetation, and Wetlands Part III. Exercise 1
6. There are 10,896 records
7. There are 9 records after the dissolve operation
8. There are 8 records in the “vegCov_Clip” feature class

Part IV. Exercise 2
9. 404 records were selected
10. 123 records were selected