Images

USGS personnel preparing to dive in Yucatan Peninsula.

Collecting water samples in Yucatan Peninsula, Mexico.

Tulum, Mexico jungle panorama 

Hike through the jungle in Tulum, Mexico

This lava fountain, which erupted on September 6, 1969, during the Mauna Ulu eruption, was about 540 m (1770 ft) tall. The tephra cone, eventually named Mauna Ulu, can be seen in the fallout area (right of the fountains. in middle of image). It is now a 121 m (397 ft) tall lava shield in Hawai‘i Volcanoes National Park.

Teaching Through Technology (T3) Alliance students in the University of Hawai‘i at Hilo Upward Bound summer program install a large display showing measurements from their air-quality monitoring station outside the Pāhoa Community Center, which was used as a temporary shelter for displaced residents from Kīlauea Volcano's 2018 eruption.

Good weather provided clear views of Halema‘uma‘u during a routine visit to the webcam on the northwest rim of the caldera.

Students from the Teaching Through Technology (T3) Alliance, University of Hawai‘i at Hilo Upward Bound summer program, install an air-quality monitoring station outside the Dragon's Eye Learning Center on Papaya Farms Road. Photo courtesy of Adam Low, T3 Alliance.

HVO geologist Matthew Patrick being interviewed on the Kīlauea lava-flow field for a documentary about Hawaiian volcanism. Growing lava delta (left background) steaming at the point of ocean entry.

William Clark's 1814 map, indicating the route of John Colter during the winter of 1807-1808. (Library of Congress, Geography and Map Division, Washington, D.C.)

A view of a vegetated inland coastline overlooking the water on Dauphin Island, Alabama. The island protects mainland Alabama’s coastal communities and resources from storms, while also providing recreational opportunities (fishing, beach tourism, etc.) and other economic benefits to the local community and state.

A panoramic view on Dauphin Island, Alabama. The island protects mainland Alabama’s coastal communities and resources from storms, while also providing recreational opportunities (fishing, beach tourism, etc.) and other economic benefits to the local community and state.

 Major ions such as Sulfate and Chloride are measured with an Ion Chromatograph

Image from video camera along Sunset State Beach in Watsonville, CA, looking northwest. Every half hour during daylight hours, the camera shoots video for 10 minutes.

Meagan Gonneea checks on instruments at a tidal creek in Great Pond, Falmouth, MA. Daily tides drive exchange between coastal wetlands and adjacent estuaries. Here we have instrumented a tidal channel to measure those fluxes over a tidal cycle. When the marsh floods, material is imported from the estuary.

A well sensor continuously monitors salinity, temperature, and water level in a salt marsh, Cape Cod, MA

Amphitheater Mountain and Soda Butte Creek viewed from the northeast entrance road. National Park Service photo by Jacob Frank, June 29, 2017.

Gamma well detectors are used to determine the ages of sediments based on activities of natural and anthropogenic radionuclides

Dissolved inorganic carbon (DIC) in water samples is measured with a UIC, Inc. Coulometer

The urban reef at Isla Verde supports various species of protected corals, sea turtles, and crustaceans, as well as many Caribbean fish. It also protects the International Airport and numerous homes and resorts on the coast.

Aerial photograph looking southwest along Breton Island, Louisiana, taken July 2013