satellite imagery

Is this a ridge or a canyon? Relief inversion plays tricks on the brain with this image of the Colorado River in Arizona. Photo: NASA

Relief Inversion

Caitlin Dempsey

Telling the difference between a canyon and a mountain on aerial or satellite imagery can sometimes be tricky due to an optical illusion known as relief inversion.

A four-paneled diagram showing a vertical slice of a satellite imagery with forest damage, a second panel with land use change, a third panel symbolized to show the date of changes, and the fourth panel shows the magnitude of the change.

Mapping Long-term Land Use Change with Remote Sensing Data

Mark Altaweel

The USGS’ Land Change Monitoring, Assessment, and Projection (LCMAP) initiative is helping to better monitor the Earth and long-term land use change.

Screenshot of a mapping application showing satellite imagery with areas that have hurricane damage outlined in orange.

Using Geospatial Technologies to Map Hurricane Response

Mark Altaweel

Using satellite data and artificial intelligence, researchers have developed a way to rapidly map hurricane destruction.

A group of tan colored jellyfish against a deep blue background.

Mapping Jellyfish

Mark Altaweel

Mapping swarms of jellyfish has significantly improved due to a combination of remote sensing data, UAV and satellite data, and algorithms that estimate jellyfish migration based on current data.

A shaded orange map showing areas of the United States with higher than normal carbon dioxide in the atmosphere.

Remote Sensing for Carbon Offsetting

Mark Altaweel

Remote sensing and geospatial technologies are being harnessed for carbon offsetting efforts.

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