Images

Samples are recovered from the sediment trap once every 9-12 months. Cruises to recover and redeploy the mooring take place on the UNOLS vessel, R/V Pelican, operated by LUMCON, in Cocodrie, Louisianna.

Huron River at Milan, OH - gage house equipment

Huron River at Milan, OH - view from the bank

2" aluminum pipe, structural pipe fittings, and square tubing are utilized to create a dock servicable uplooking ADVM mount.

Wildfires fueled by dry conditions, high temperatures, and strong winds are scorching central Chile at a level Chilean officials say they haven’t seen in decades.

The desmid family of single-celled green algae are never found in abundance, says USGS biologist Barry Rosen. They inhabit the soft, slightly acidic water of wetlands that depend on rainwater, like Florida’s Arthur R. Marshall Loxahatchee National Wildlife Refuge. They don’t “bloom” en masse, but their presence is an indicator of good water quality.

A stony islet in one of the many ponds of Icy Point.

Installing large boulders as rip rap to armor the shore against further erosion at Goleta Beach in Southern California. The tide is very low (negative).

Beach loss and armoring at Goleta Beach, very low (negative) tide

The hot crack near the sea cliff, in the immediate area of the ocean entry, has widened significantly over the past four days. On Saturday, January 28, the crack was 30 cm wide (1 foot). Today, HVO geologists in protective gear briefly entered the area and measured the crack as being 75 cm (2.5 feet).

This remote area along the southern Idaho-Oregon border was affected by the 2015 Soda Fire, which burned nearly 400 square miles of sagebrush habitat important to many species of wildlife, as well as federal and private ranchlands.

Exposed bedrock on the beach during very low (negative) tide at Isla Vista, California

Bedrock exposed at low tide along the beach at Isla Vista, California

Exposed bedrock on the beach, below the University of California, Santa Barbara.

Ice jam on Little Wind River near Riverton, Wyoming (06235500), February 2017. The streamgage was destroyed soon after this photo taken.

Physical Scientist Serena Matt inserting a fiberglass snow tube during the Snow Depth and Snow Water Equivalent (SWE) measurement. Sleepers River Research Watershed, Danville, Vermont.

Physical Scientist Serena Matt posing next to a snow scale during the Snow Depth and Snow Water Equivalent (SWE) measurement. Sleepers River Research Watershed, Danville, Vermont.

National Geodetic Survey vertical control bench mark W990 CADWR in Merced County, California. W 990 CADWR is on the Mariposa Bypass Bridge on Washington Rd. This is one of several bench mark locations used to help measure the largest recent subsidence in the area using repeat surveys.

National Geodetic Survey vertical control bench mark H1235 RESET in Merced County, California. H 1235 RESET is in the median of State Highway 15. This is one of several bench mark locations used to help measure the largest recent subsidence in the area using repeat surveys.

USGS conducts a health assessment on a mantee in Crystal River, Florida.

USGS conducts a health assessment on a mantee in Crystal River, Florida.