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February 26, 2021—Kīlauea summit eruption contour map

 

February 26, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

Improved Automated Identification and Mapping of Iron Sulfate Minerals, Other Mineral Groups, and Vegetation using Landsat 8 Operational Land Imager Data, San Juan Mountains, Colorado, and Four Corners Region

Multispectral remote sensing data acquired by the Landsat 8 Operational Land Imager (OLI) sensor were analyzed using a new, automated technique to generate a map of exposed mineral and vegetation groups in the western San Juan Mountains, Colo., and the Four Corners Region of the United States. Band ratio results were combined into displayed mineral and vegetation groups using Boolean algebra. New

February 16, 2021—Kīlauea summit eruption thermal map

February 16, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery

February 11, 2021—Kīlauea summit eruption contour map

February 11, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

Machine-learning predictions of redox conditions in groundwater in the Mississippi River Valley alluvial and Claiborne aquifers, south-central United States

Machine-learning models developed by the U.S. Geological Survey were used to predict iron concentrations and the probability of dissolved oxygen (DO) concentrations exceeding a threshold of 1 milligram per liter (mg/L) in groundwater in aquifers of the Mississippi embayment physiographic region. DO and iron concentrations are driven by and reflect the oxidation-reduction (redox) conditions in grou

February 09, 2021—Kīlauea summit eruption thermal map

February 9, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery

February 5, 2021—Kīlauea summit eruption contour map

Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

February 01, 2021—Kīlauea summit eruption thermal map

February 1, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery

January 29, 2021—Kīlauea summit eruption contour map

Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

January 25, 2021—Kīlauea summit eruption contour map

January 25, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

January 13, 2021—Kīlauea summit eruption thermal map compilation

A compilation of nine thermal maps created for the ongoing eruption in Halema‘uma‘u, at the summit of Kīlauea.

January 12, 2021—Kīlauea summit eruption thermal map

January 12, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery