glacier mapping

Spatial Analysis

Retreat of the Helheim Glacier between 2001 and 2005. Images from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite.

Creating a Time Series Visualization of Two Decades of Changes in a Glacier

September 24, 2017By Elizabeth BornemanSpatial Analysis

NASA has created a time series visualization of Greenland’s Helheim Glacier using 20 years of data from radar, lasers, and high-resolution cameras.

Geospatial Artificial Intelligence: Emerging Trends and Challenges

There are both challenges and opportunities that Artificial Intelligence (AI) has in applying geospatial and GIS knowledge that also addresses issues of time and spatial bias.

Global Dataset of River Widths Developed from Landsat Imagery

Researchers used a combination of satellite imagery and field measurements coupled with statistical modeling to calculate worldwide river and stream surface measurements which is now available as a GIS dataset.

Elements of a Map

Maps are the primary tools by which spatial relationships are visualized. Maps therefore become important documents. There are several key elements that should be included each time a map is created in order to aid the viewer in understanding the communications of that map and to document the source of […]

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There are a few online options to learn GIS for free. Take advantage of resources that provide you access to free courses from some of the world’s best universities and institutions.