Spatial Analysis

The spatial analysis category looks at data manipulation techniques in GIS.

Map of GIS Job Listings in the US

Heat Maps in GIS

Caitlin Dempsey

Heat mapping, from a GIS perspective, is a method of showing the geographic clustering of a phenomenon.

Map showing Rhode Island. Areas in red have a high GEMI index.

How to use ArcGIS Pro and Landsat 8 Imagery to Calculate Chlorophyll Index and Global Environmental Monitoring Index

Jeff Oppong

Learn to create a chlorophyll index using Landsat 8 imagery in ArcGIS Pro with this step-by-step GIS tutorial.

Screenshot from a GIS software program showing an aerial image with geospatial data overlays for Missouri.

Finding GIS Data and Using QGIS to Map Caves

GIS Contributor

Dackery Geiman outlines the challenges he encountered finding geospatial data about caves and using QGIS to map cave density in Missouri.

Elevation map with shades of green.

GIS in Land Use Planning and Surveying

GIS Contributor

Michael Parks explains how he used GIS data and imagery to develop geospatial analysis and maps to recommend potential base camp sites.

Satellite imagery over the Gulf of Mexico showing oil slicks in the water.

Mapping Oil Slicks With Satellite Imagery

Mark Altaweel

Sentinel-1 synthetic aperture radar (SAR) satellite data has been used in a study to map oil slicks.