Study Spatial Distributions of Your Data
Use Spatial Analyst to perform density analysis to show where point or line features are concentrated. For example, managers of a retail store chain may wish to study the distribution of where the customers live.
Perform Distance and Cost of Travel Analysis
You can calculate the distance in a straight line from any location to the nearest source, or create cost-weighted distance surfaces to understand the cost of getting from one location to another based on a set of input criteria you specify. Applying the cost distance functions, you can also create the least cost or shortest paths between different locations.
Analyze Geographic Data Using Mathematical Operators
Map algebra provides an easy-to-use and powerful way to define geographic analyses as algebraic expressions.
Perform Statistical Analysis with Cell-Based Data
Regardless of the raster format, Spatial Analyst allows you to perform calculations on a per-cell basis between multiple datasets, such as calculating the mean crop yield over a 10-year period, studying the variety of species contained within each neighborhood, or determining the mean elevation per forest zone.
Derive New Information from Hydrologic Analysis
ArcGIS Spatial Analyst contains specialized tools for working with and deriving new information from hydrologic and landscape data. The hydrologic modeling functions help you to model where water will flow, create watersheds and stream networks, and derive other hydrologic characteristics.
For more detailed information about Spatial Analyst, take a quick tour.