Images

Commo shack at Deadhorse geomagnetic observatory.

Total field pier at Deadhorse geomagnetic observatory.

Display computer in Commo shack at Deadhorse geomagnetic observatory.

Data acquisition system at Deadhorse geomagnetic observatory.

Water flowing over the baffles of the overflow chute at streamgage 05059715 Maple River at Maple River Dam near Sheldon, North Dakota, streamflow 1,750 cubic feet per second, March 28 or 29, 2010.

Absolutes electronics at Deadhorse geomagnetic observatory.

Fluxgate pier at Deadhorse geomagnetic observatory.

Commo shack at Deadhorse geomagnetic observatory.

Instrument piers in newly constructed building after equipment installation at Deadhorse geomagnetic observatory.

Image of  several species of coral growing on and near the prop roots of red mangrove trees.  Sponges, feather duster worms, and sea grass also appear in the picture.

The USGS has been monitoring the Kennebunk River near Kennebunk, Maine since June 2008 and the peak discharge for the period of record occurred in February 2010.

Water sample collection on ice-covered Cheney Reservoir, Kansas

A curious manatee calf encounters a snorkeling scientist as the USGS Sirenia Project conducts fieldwork at Crystal River National Wildlife Refuge, Florida

Fresno geomagnetic observatory.

Janelle Dyer dispenses a filtered ash leachate sample into a sample bottle for ion chromatography analysis for anions such as fluoride, chloride, sulfate, and nitrate.

Eco-Hydrologist Karen Balentine directs a sling-load drop in Everglades National Park.

House engulfed by debris flows generated in response to a rainstorm on February 6, 2010. This house was west of Briar Wood Canyon in southern California. The small, but steep and rugged drainage basin above this home was burned the previous summer by the Station Fire, the largest fire in the history of Los Angeles County.

House damaged by debris flows generated in Mullally Canyon in response to a rainstorm on February 6, 2010. The drainage basin above this home was burned the previous summer by the Station Fire, the largest fire in the history of Los Angeles County.

The USGS gages the Wild River at Gilead, Maine at station 01054200. This photo was taken during a winter trip to the site. During this trip, the gage equipment was checked and a discharge measurement was made by drilling holes through the ice and lowering velocity meters into the water.

Graduate student Allison Payne (USGS ARRA student appointment) uses a binocular microscope to pick out minerals that contain tiny melt inclusions from 2009 Redoubt tephra samples. Melt inclusions are then analyzed with a SHRIMP - Sensitive High Resolution Ion Microprobe - for their volatile (H2O and CO2) content.

Massive rock slides were caused by strong ground shaking during the main shock of the magnitude-7 earthquake that struck Haiti on Jan. 12, 2010 and several of the stronger aftershocks. This mountain road leads north to the city of Dufort, located near the larger city of Leogane.