Images

Looking north towards Mono Lake and Mono Craters from the summit of Reverse Peak.

USGS staff--working with partners--released a harmless, fluorescent dye as part of a large-scale test that is being conducted along a 3,000-foot stretch of canals and levees. Its goal is to determine how to best design and formulate plans to reconnect water flows in the Everglades.

USGS staff--working with partners--released a harmless, fluorescent dye as part of a large-scale test that is being conducted along a 3,000-foot stretch of canals and levees. Its goal is to determine how to best design and formulate plans to reconnect water flows in the Everglades.

South Mill Creek near Mozer, WV.

USGS staff--working with partners--released a harmless, fluorescent dye as part of a large-scale test that is being conducted along a 3,000-foot stretch of canals and levees. Its goal is to determine how to best design and formulate plans to reconnect water flows in the Everglades.

USGS staff--working with partners--released a harmless, fluorescent dye as part of a large-scale test that is being conducted along a 3,000-foot stretch of canals and levees. Its goal is to determine how to best design and formulate plans to reconnect water flows in the Everglades.

USGS scientist Monica Langhorst measures gage height with a wire weight at Onion Creek at U.S. Highway 183 in Austin, TX.

USGS scientists Craig Weiss and Michael Scheider make a streamflow measurement at Onion Creek at U.S. Highway 183 in Austin, TX.

USGS scientist Mark Warzecha makes a streamflow measurement with Acoustic Doppler Current Profiler downstream of a USGS streamgage station on the Blanco River at Interstate 35. The streamgage is not currently accessible, so a measurement is being made at the safest downstream location. 

During an October 31 site visit to USGS Station 01011000 on the Allagash River, hydrologic technician Laura Flight took this photo of pancake ice, also known as pan ice, collecting in an eddy on the shore of the Allagash River. 

USGS scientist Monica Langhorst measures gage height with a wire weight at Onion Creek at U.S. Highway 183 in Austin, TX.

A cluster of cones with summit depressions in Coprates Chasma, Mars. These structures, morphologically speaking, resemble cinder cones. More likely, they are mud volcanoes. Mud volcanoes occur when a slurry of liquid, gas, and sediment is forced to the surface from a depth of several meters to several kilometers.

USGS streamflow station 01048000 (Sandy River near Mercer, Maine) is shown during an early morning site visit in October 2013.

Image of ripples in sand, next to a rocky surface on the seafloor 2.5 km (1.5 miles) offshore San Mateo County, California at a depth of 24.6 meters (81 feet). The two red dots in the image (from lasers mounted on the camera and used as reference points) are 15 cm (6 inches) apart.

Stark comparison between bog (no permafrost) in the foreground and a boreal forest (with permafrost) in the background in the Alaskan interior.

Big Thompson River at Loveland, CO; temporary rapid deployment streamgage installed when the nearby permanent gage damaged during September 2013 flooding.

Animas River below Wilverton, CO; Kevin Murphy collecting water quality sample.

This photograph shows Lowe's Bridge off ME-15 in Guilford, Maine, spanning the Piscataquis River. USGS gaging station 01031500 is located on the downstream side of the bridge.

Fourmile Canyon Creek near Sunshine, CO; Zach Martin surveying high-water for indirect flood measurement after 2013 Boulder floods.

The coastal walrus haulouts that form during periods of sea ice scarcity in the Chukchi Sea are composed primarily of adult female walruses and young, as well as some adult male walruses.

 (Photo taken during USGS research efforts permitted under US Fish and Wildlife Service Permit No. MA801652-3)

A close up of a female walrus resting after entering the haulout.  Sand from the beach is evident on her tusks.

(Photo taken during USGS research efforts permitted under US Fish and Wildlife Service Permit No. MA801652-3)