Images

Waterfall in Appalachian Forest

Massanutten Mountain in Virginia

Reston Microbiology laboratory personel Sampling a Stalagtite from the HErrenberg cave for the presence of bacteria.

Benbrook Lake, December 2011. Photograph by Glenn Harwell, U.S. Geological Survey.

SIR 2012–5202

Colorado River, and Roaring Fork River confluence, Glenwood Springs, Garfield County, CO

This image is a screen capture of the ModelMuse Object Properties dialog box with the words ""you can have zero, one, or two third-dimension formulas." It is meant to be used as the thumbnail for a video.

This image is a screen capture of ModelMuse with the words "This video will give a brief example of how to use MODPATH with ModelMuse." It is intended to be used as the thumbnail image for a video.

Screen capture of GW_Chart and ModelMuse showing a time series of simulated river leakage.

Screen capture of ModelMuse with the words "Note that the symbol for the vertex is now a diamond insead of a square."

This image is inteded to be used as the thumbnail for a video.

Pruitt Buffalo National River

A columnar ice spike is observed developing between the ice mounds and weir at Apple Creek. Flow is 20.5 cubic feet per second.

Marker (3' 10") stands next to ice spike at Apple Creek near Menoken, North Dakota.

When ice-rich permafrost thaws, former tundra and forest turns into a thermokarst lake as the ground subsides. The carbon stored in the formerly frozen ground is consumed by the microbial community, who release methane gas. When lake ice forms in the winter, methane gas bubbles are trapped in the ice.

USGS sampled water quality at this location on Chickasawhatchee Creek, Terrell County, Georgia.

Hydrologists Carole Johnson and Alton Anderson (USGS) prepare a borehole nuclear magnetic resonance (NMR) tool for logging.

USGS scientists J. Alton Anderson and Dennis W. Risser prepare to collect a full-waveform sonic log from a 1,000-foot deep stratigraphic test hole drilled by the Pennsylvania Geological Survey at the edge of a Marcellus Shale production well pad in Lycoming County, PA.

Tropical Storm Lee 24-hour precipitation map

Water samples using a CTD rosette were taken down to  4,600m in the Canadian Basin in order to investigate ocean acidification.  The water was analyzed shipboard for pH using a spectrophotometer.

USGS Hydrologist, Guy Foster collects a sample of blue-green algae in Milford Lake, Kansas.

Bald Eagle Lake near the Twin Cities, Minnesota. 

A breach in the coastline of Rodanthe, North Carolina, caused by Hurricane Irene in 2011.  Repeated storm impacts, combined with sea level rise, make the development and improvement of models that help forecast coastal change very important to planners working to build more resilient communities