Images

Photographs from an adult female mountain cottontail rabbit (Sylvilagus nuttallii) found dead in Montana, U.S.A. (A) Liver with random foci of necrosis (asterisk) characterized by accumulation of cellular detritus intermingled with fibrin and colonies of small coccoid bacteria (inset). H&E stain.

Cross section through the Earth showing the ground surface with an embedded pressure source (red circle)—the so-called “Mogi model”—beneath the ground.  When this pressure source expands, the ground surface inflates like a balloon (the opposite occurs when the pressure in the source decreases).  Dashed black line shows, in an exaggerated way, how the shape

Example of the Landsat 8 OLI/TIRS Collection 2 level-1 product. This Landsat 8 image was acquired on August 18, 2020 over Lake Everard and Lake Harry in southern Australia and is shown as a false color composite using the shortwave infrared, near infrared, and red bands (bands 6,5,4).

Field Photo Friday August 2020 - Scott George holding 2 crabs

Photo looking north from the north shore of Yellowstone Lake. The photo was taken from a level bench, or terrace, which marks a previous high stand of the lake.  In the middle distance (between the two red lines), the ground slopes up to second, higher-level terrace that indicates an even higher past lake level.

Bathymetric map of offshore Oregon with Stonewall, Heceta, and Siltcoos Banks labeled.

Topo-bathymetric map of the Cascadia subduction zone. Cascadia megathrust fault (white line); approximate shelf break along 200-m isobath (yellow line); MTJ, Mendocino triple junction.

Bathymetric map of offshore northern California reveals seafloor features and submarine canyons.

Schematic cross-section of the accretionary wedge along the Cascadia subduction zone. Modified from Moore and others, 2007.

 01328770 Hudson River at Thompson, Justin Rappold making an Acoustic Doppler Current Profiler (ADCP) discharge measurement.

Interior of the SNIF multi-GAS enclosure on Mount St. Helens, Washington

USGS scientist Laura Clor performing maintenance on the SNIF multi-GAS station on Mount St. Helens, Washington.

Black streak on caldera wall (center) is about 50 m (yards) long, and white steam plume (lower right) rises from northwestern part of Halema‘uma‘u. Photo from Volcano House Hotel on July 4, 2018. The configuration of this area changed considerably after the photo was taken, as collapse continued into early August. USGS photo.

Lake George, New York, in the fall with a dock and watercraft.

Small plants grow beneath the needles of a Bishop pine

The KWcam webcam at Kīlauea's summit captured a rainbow over the water lake in Halema‘uma‘u this afternoon, as light mist moved across the caldera.

Now that Forster’s terns have returned to nesting in Pond A16, an important nesting colony has been re-established, with hopes that this tern colony will grow in future years and help reverse the decline of the Forster’s tern population in San Francisco Bay.

USGS Scientists Map Nutrients on Sacramento Delta

The USGS Remote Sensing Coastal Change Project collected aerial imagery of the northern Outer Banks, North Carolina coastline from pre- and post-Hurricane Isaias, in order to use Structure-from-Motion techniques to produce digital elevation models (DEMs) and orthomosaic photos, to be used in evaluating the storm-induced coastal change, such as sand transported onto

This USGS streamgage on Schantz Spring near Wescosville, Pennsylvania was partially submerged after floodwaters from Tropical Storm Isaias quickly rose and flooded the area.

Fisseha Mengistu, USGS hydrologic technician, uses a device that lowers a water sampler into the creek below to collect samples used for water quality testing. Experts will be able to use this data to track how Tropical Storm Isaias impacted water quality in the area. This work was done on Rock Creek in Washington, D.C.