Lab 08: Spatial Analysis Buffering and Overlay

Author

Jim Pan

1 Introduction

In this lab, we will explore spatial analysis techniques using buffering and overlay operations in ArcGIS. These techniques are fundamental in geographic information systems (GIS) and are often used to determine spatial relationships between various features.

2 Objectives

  • Apply the concepts of buffering and overlay in GIS.
  • Create maps demonstrating buffer zones and suitable areas for specific land use.
  • Perform spatial analysis to identify potential campgrounds based on proximity to lakes and roads.

3 Tasks

3.1 1. Create Buffer Zones

Using the provided data (lakes.shp, roads.shp), generate buffer zones around lakes and roads. Apply variable distance buffers for lakes based on their size and fixed distance buffers for roads.

3.2 2. Perform Overlay Analysis

Overlay the buffer zones to identify areas that meet both the criteria for being near a lake and a road. Use the union operation to combine these layers and identify suitable areas for potential campgrounds.

3.3 3. Analyze Suitable Areas

Determine the size of the suitable areas identified in the overlay analysis. Calculate the area in hectares and create maps that display these areas.

4 Results

4.1 Hugo Minnesota Lakes and Roads - Buffer Zones

Buffer Zones

4.2 Hugo Minnesota Lakes and Roads - Overlay Analysis

Overlay Analysis

4.3 Hugo Minnesota Lakes and Roads - Campground Locations

Campground Locations

5 Conclusion

This lab demonstrated the use of buffering and overlay operations in GIS to identify suitable areas for campgrounds. By applying these spatial analysis techniques, we can make informed decisions about land use based on proximity to key features such as lakes and roads.

Back to top