Core Science Systems

Multimedia

Our multimedia gallery represents a collection of high-quality images, videos, webcams, posters, presentations, and documents produced by Core Science Systems.

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Landsat 8 Collection 2 image of the Richat Structure
April 25, 2021

Landsat 8 Collection 2 image of the Richat Structure

This Landsat 8 Collection 2 image was acquired over the Richat Structure near the western edge of the Sahara Desert on April 25, 2020 and is shown as a natural color composite using the red, green, and blue bands (Bands 4,3,2).

Also known as the Eye of the Sahara or Guelb er Richat, the Eye is a symmetrical dome of eroded sedimentary and volcanic rock. The outermost

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Color photo of Henry Bastian and Frank Fay with USGS EROS Eyes on Earth podcast logo
April 16, 2021

Eyes on Earth Episode 51 – LANDFIRE 2019 Limited

The fire science community is always on the lookout for the freshest satellite-derived fire disturbance maps. Aiming to meet those needs, the multi-agency partnership known as LANDFIRE has just released an update that adds three new years of disturbances across the U.S. to its 20-plus layers of GIS data. LANDFIRE 2019 Limited is a step toward annual updates for the program

April 12, 2021

Terra MODIS & S-NPP VIIRS Observe Snowpack in Sierra Nevada Mt. Range

The Moderate Resolution Imaging Spectroradiometer (MODIS) sensor is located aboard NASA’s Terra and Aqua satellites. The Visible Infrared Imaging Radiometer Suite (VIIRS) sensor is aboard the Suomi National Polar-orbiting Partnership (S-NPP) satellite. Together these sensors provide us with over two decades of crucial data for studying changes that have occurred on the

April 8, 2021

Image of the Week - Tides in the Bay of Fundy

The Bay of Fundy in Canada has a unique geography funneling the Atlantic Ocean into some of the world's highest tides. At some points the water level can rise and fall over forty feet. The water's edge at Minas Basin shown in these Landsat 8 images changes dramatically depending on the day and time. Because Landsat 8 passes over quickly, the imagery cannot reveal the

Color photo of Karen Schleeweis with the logo for the USGS EROS podcast Eyes on Earth
April 1, 2021

Eyes on Earth Episode 48 – Satellites and the Forest Census

It’s possible to map vegetation type with Landsat, but getting the maps right requires more than satellites alone. The teams behind LANDFIRE use an extensive network of ground control points to check their work, thereby bolstering the reliability and utility of their multi-layer GIS product suite. On this episode of Eyes on Earth, we meet scientist Karen Schleeweis, who

March 31, 2021

Image of the Week: Mudslide Cuts Through Big Sur Burn Scar

A mudslide near the 2020 Dolan Fire's ignition point chopped through a chunk of California's scenic State Highway 1 in late January. 

The Dolan Fire began near Big Sur on August 18th, 2020. It scarred nearly 125,000 acres before being fully contained in December. 

The damage is clear in false color Landsat 8 imagery from August and October. The scar is still

March 31, 2021

Landsat in the Cloud: LandsatLook 2.0

With existing USGS tools you can search for scenes, view thumbnail browse images of scenes, and download scene-based data, all derived from the USGS archive of scene-based products. Now that Landsat scene data has been unpacked and stored in the cloud, LandsatLook 2.0 can access that data and present it to users in ways that were not previously possible. Thanks to the

March 22, 2021

Getting Started With GeMS, Part A

Getting Started With GeMS, Part A - An introduction to the GeMS schema, the GeMS Tools ArcGIS toolbox, and how to prepare ArcMap for digitizing.

The Geologic Map Schema (GeMS) defines a standard database schema — a database design — for digital publication of geologic maps. This tutorial is one of six

March 22, 2021

Digitize an Analog Map With GeMS, Part B1

Digitize an Analog Map With GeMS, Part B1 - How to create an empty GeMS geodatabase in ArcMap, digitize contacts from a scanned geologic map, and create map unit polygons.

The Geologic Map Schema (GeMS) defines a standard database schema — a database design — for digital publication of geologic maps. This

March 22, 2021

Digitize an Analog Map With GeMS, Part B2

Digitize an Analog Map With GeMS, Part B2 - Digitize orientation points and check topology.

The Geologic Map Schema (GeMS) defines a standard database schema — a database design — for digital publication of geologic maps. This tutorial is one of six originally presented as part of a short course at the 2021

March 22, 2021

Digitize an Analog Map With GeMS, Part B3

Digitize an Analog Map With GeMS, Part B3 - How to complete nonspatial tables, validate a GeMS database, and symbolize features.

The Geologic Map Schema (GeMS) defines a standard database schema — a database design — for digital publication of geologic maps. This tutorial is one of six originally presented as

March 22, 2021

Translate a Digital Map With GeMS, Part C1

Translate a Digital Map With GeMS, Part C1 - How to load map unit polygons, lines, and cross section data from another schema to GeMS.

The Geologic Map Schema (GeMS) defines a standard database schema — a database design — for digital publication of geologic maps. This tutorial is one of six originally