Week 4 Vector Analysis Labs

 

Week 4 Vector Analysis labs

Vector Lab One

Student Learning Outcomes:

▪ Recognize the different types of shapefiles and feature classes

▪ Recall basic components of a geodatabase

▪ Implement the GIS analytical process

▪ Differentiate between attribute and location queries

▪ Identify parts of an attribute query expression

▪ Use various spatial selection methods to perform a location query

▪ Use the statistics tool in an attribute table to sum values

▪ Describe what is happening behind the scenes when data is being queried

▪ Execute a spatial join between two tables to create a new layer

Vector lab one focused on the concepts listed above in order to create a geodatabase which we used to create a map depicting Pensacola county where we later identified through various processes the location of several key features as well as joined tables to create a new layer

Tasks

▪ Explore and Create a geodatabase

▪ Import an .mxd

▪ Select feature by Location

▪ Find Intersecting Features

▪ Spatially Join Tables

Vector Lab Two

Student Learning Outcomes:

▪ Define and use two of the most common modeling tools in ArcGIS: buffer and overlay

▪ Analyze vector data using spatial queries

▪ Use the overlay modeling tool to combine or exclude multiple features

▪ Distinguish multipart and singlepart layers

▪ Create a report that explains data being utilized in the GIS project (metadata), answers important

questions, and summarizes the process of creating deliverables from beginning to end

For the second Vector Lab assignment we focused on creating buffer and overlay layers in order to accurately depict were features intersect to determine where possible camping sites may be located within an area.

Tasks

▪ Create a fixed distance buffer ▪ Perform a union

▪ Use ArcPy to run buffer analysis ▪ Separate and exclude Areas

▪ Create a variable distance buffer

 In order to accomplish this we had to use spatial queries combined with several modeling tools to first to create a buffer zone around key features-and then combine multiple layers using the Union tool in order to create a final layer which I later summarized on the layout map featured below. 

This map depicts a parcel of land located in Mississippi and features both roadways and waterways that run throughout. The colored features represent areas where locations within a specific proximity to these road and waterways intersect allowing for possible camping usage. This map excludes areas where these features intersect on known conservation land. The colored features are depicted using graduated colors to represent percentage of overlap in total.