Images

Time-exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is time-averaged over 10 minutes of video.

Bright image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the brightest pixels through 10 minutes of motion.

Variance image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and shows areas of more movement as brighter colors.

USGS scientists work with heavy machinery to collect sediment through the full thickness of the San Juan and Colorado River deltas. 

Core processing hut provides a sheltered environment for scientists to process the cores for shipment to the National Lacustrine Core Facility

Amphitheater Mountain and Soda Butte Creek viewed from the northeast entrance road. National Park Service photo by Jacob Frank, June 29, 2017.

Satellites have captured views of the numerous major fires burning in California.

Grand River near Painesville, OH - construction

Grand River near Painesville, OH - construction at gage

Grand River near Painesville, OH - construction at site

Grand River near Painesville, OH - downstream

Grand River near Painesville, OH - downstream view

Grand River near Painesville, OH - low flow

Grand River near Painesville, OH - railway bridge

Grand River near Painesville, OH - railway bridge at site

Grand River near Painesville, OH - railway bridge at site

Grand River near Painesville, OH - view from bridge

Meagan Gonneea checks on instruments at a tidal creek in Great Pond, Falmouth, MA. Daily tides drive exchange between coastal wetlands and adjacent estuaries. Here we have instrumented a tidal channel to measure those fluxes over a tidal cycle. When the marsh floods, material is imported from the estuary.

Dark image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the darkest pixels through 10 minutes of motion.

Time exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image represents a time-averaged image from 10 minutes of video.

Variance image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and shows areas of more movement as brighter colors.