Images

After recovery, the jumbo piston corer sits on the deck of research vessel Bold Horizon in its launch and recovery system. This muddy collar is removed to reveal the removable length of the core, which sits within a stiff plastic tube inside the metal tube.

USGS scientist Janet Watt making a shear vane measurement on a gravity core to understand how the seafloor responds to earthquake shaking.

Various members of the Kotlik (Querrullik) governance talking about environmental changes for the Building Resilience Project.

USGS marine technician Jenny McKee prepares the jumbo piston corer for launching off research vessel Bold Horizon off the coast of California and Oregon. The corer will collect sediment samples from the seafloor. Scientists will examine the sediment to determine its age, character, and distribution. This area off the west coast of the U.S.

Malinda Chase (AK CASC Tribal Liaison), Jeremy Littell (AK CASC Lead Scientist), Victor Tonuchuk, Jr., Philomena Keyes, and Bernard TKTKTK taking Active Layer Network measurements in Kotlik, Alaska.

 The governance of Kotlik (Querrullik) in Alaska.

Goleta Beach in Santa Barbara experienced an unusual storm and large wave event in the Spring of 2014. Gaviota Pier, seen far off in the background, sustained heavy damage as did the restaurants on the pier and nearby. The USGS conducts seasonal surveys throught the year to see how the beaches are changing through time.

A female Kemp's ridley sea turtle, named Finley, shows off the popoff ADL (orange) and satellite tag (blue).

USGS Hawaiian Volcano Observatory and DOI Office of Aviation staff prepare the sampling mechanism (on blue tarp) and inspect the Unmanned Aircraft System (UAS) just before it took off to collect water from the Halema‘uma‘u crater lake. Brightly-colored flagging tape tied to a cable attached to the UAS indicated depth as the sampling tool was lowered into the water.

Water collected from the lake at the bottom of Halema‘uma‘u is prepared for laboratory analyses at the USGS California Volcano Observatory. Results thus far reveal chemistry indicative of complex reactions between the water, magmatic gases, and Kīlauea's basaltic rocks. USGS photo by S. Peek, October 2019.

Star dunes, colored red by iron oxide sand, are seen in this Landsat scene from Sossusvlei in Namibia. 

Photomicrographs from a wing roll of a little brown bat (Myotis lucifugus). PAS. (A) At low magnification, PAS-positive foci are easily detectable. (B) Multifocal cup-shaped ulcers (thick arrow) of the epidermis are scattered over the wing membrane surface. Inflammatory response is lacking.

USGS gage 11451800 Cache Creek at Rumsey, CA

The "Short-term Sulfur Dioxide Advisory Level Information" table (http://www.hiso2index.info/assets/FinalSO2Exposurelevels.pdf) uses a six-tiered color-coded system to depict sulfur dioxide (SO2) concentrations and provide guidance for different groups of people exposed to SO2.

Scientists collected marine vibracores from a research vessel in Mississippi Sound to study shelf geology as part of a collaboration between Mississippi State University and the USGS St. Petersburg Coastal and Marine Science Center.

Cykl Hydrologiczny, The Natural Water Cycle, Polish

Czym jest cykl hydrologiczny?

Looking upstream at the Delaware River at Montique (01438500) USGS gage house tower.

Still image from November 1, 2019, YVO video monthly update.

Stream gaging in Puerto Rico after Tropical Storm Karen: finishing the visit – Manuel Rosario, with the Caribbean-Florida Water Science Center, walks to the gage house after completing a discharge measurement September 25.

Stream gaging in Puerto Rico after Tropical Storm Karen: computing gage height – Manual Rosario does some math required to compute the gage height September 25.

Stream gaging in Puerto Rico after Tropical Storm Karen: Crest Stage Gage – The distance of a cork line from a known gage height is measured September 25. The cork line was left on a crest stage gage after a high flow event.