GIS and Geospatial Technologies

Articles focusing on the application of geographic information systems (GIS), geospatial technologies, remote sensing, LiDAR, and Global Positioning System (GPS). These technologies serve as critical tools for understanding and interacting with our physical environment. GIS allows for the mapping and analysis of spatial data Geospatial technologies refer to the various tools used to measure and analyze Earth’s lands and resources. Remote sensing provides a way to collect data from a distance, often via satellites or high-flying aircraft, and is commonly used for environmental monitoring and military applications.

GIS subcategories :

GIS Career | GIS Data | GIS Industry | GIS Learning | GIS Software | GPS | Remote Sensing | Spatial Analysis

Dominant institutions in the field in North America include well-known programs at the University of California Santa Barbara, Ohio State University, University at Buffalo, and the University of Wisconsin–Madison. Figure: GIS faculty working in North American institutions based on whether they earned their doctoral degrees in North America or in other regions, Kang & Chen, 2025.

Where are GIS Professors Hired From?

Caitlin Dempsey

Researchers analyzed GIS faculty hiring data to identify geographic patterns influencing job placement.

A screenshot of an application showing a basemap of the SF bay area with blue lifework on top of it.

Shapefile Viewers

Caitlin Dempsey

Explore viewers for visualizing GIS vector data in shapefile format, available for both desktop and web browsers.

With pansharpening, the panchromatic Landsat spectral band can be used to increase the resolution of Landsat imagery.

Pan Sharpen Landsat Imagery in QGIS

Caitlin Dempsey

This QGIS tutorial guides you through pan sharpening Landsat imagery by combining the 15-meter panchromatic band with lower-resolution multispectral bands.

A pan sharpened Landsat 8 satellite image of Mount Jefferson in Oregon on the right with the unsharpened natural color image on the left. Images: NASA, public domain,

Pan Sharpening in GIS

Caitlin Dempsey

Enhance spatial detail in multispectral images with pan sharpening. Learn how this GIS technique combines data for sharper, more detailed satellite imagery.

Earthrise over the Moon: partly-illuminated Earth rising over the lunar horizon. In this photo, the Earth is about 400,000 miles away. Photo: Apollo 11, AS11-44-6552, July 20, 1969.

Overview Effect: Quotes from Astronauts After Seeing the Earth from Space

Caitlin Dempsey

The Overview Effect is a shift in awareness by astronauts seeing Earth from outer space as a “tiny, fragile ball of life.”

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