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Everglades National Park in South Florida is the largest subtropical wetland ecosystem in North America, consisting of about 1.5 million acres of mangrove forests and other coastal wetlands. Mangroves are salt-tolerant trees that thrive amidst the harsh growing conditions of the coast.

Examples of monitoring buoys deployed in (A) 2018 and (B) 2019 and (C) example of a bottom cage containing a sensor.

In the Mississippi River Birdfoot Delta, there is intense vegetation loss in marshes farthest away from the river, as indicated by high values of UVVR (shown in pink).

Ocean engineer Gerry Hatcher, of the USGS Pacific Coastal and Marine Science Center (PCMSC), sits at a desk on board the USGS boat Sallenger. He and a team of scientists from PCMSC and sister team St.

The Prime Hook National Wildlife Refuge in Delaware is the site of a \$40 million tidal marsh restoration project—one of the largest restoration projects ever in the eastern U.S. With this project, the U.S.

Looking across the back deck/stern of the R/V Robert Gordon Sproul. The wire going through the block in the A-frame leads to the CHIRP sonar fish towed in the water. Oil platforms are shown in the distance.

USGS station ID 01075000 Pemigewasset River at Woodstock, New Hampshire. The high-water mark monument was installed in May 2021, and shows the peak for the period of record at this gage was from Tropical Storm Irene. It still remains the highest peak to this day.

Wetland Ecologist Coloring Page

On Friday, April 30, lava continued to erupt from the west vent in Halema‘uma‘u at the summit of Kīlauea Volcano. Active surface lava (center of the photo) was limited to the center of the previously active lake surface, where the north (right) and south (left) sides have cooled and crusted over (appearing darker in the image). This photo was taken around 2 p.m.

Hydrologic technicians deploying a flow sensor on a shoal in San Francisco Bay.

Scientists heading out to deploy sensors for sediment nutrient storage and release.

USGS scientist, Katy O'Donnell, monitoring instruments onboard a high-speed mapping boat. 

While hiking along the rim of the 2018 collapse area at the summit of Kīlauea, HVO scientists visited a site to the southeast of Halema‘uma‘u known as Akanikōlea—a culturally-significant place that is featured in Hawaiian legends.

HVO scientists hiked along the closed Crater Rim Road on April 30th to retrieve acoustic (sound) sensors for a scientific study. This section of the road was damaged by earthquake activity during the 2018 Kīlauea summit caldera collapse. This stretch of road traverses part of the September 1982 lava flow, visible as a lobe of black rock on the right of the road.

This rock is covered with invertebrate animals over nearly the entire surface including orange and purple sea stars, green anemones spotted with shell debris of other animals, and black mussels.

Large Array of Laboratory Glassware, USGS - NMWSC

Technician Kathryn Cahalane using an analytical balance to measure resin for SPATT production. 

Thermo Scientific Muffle Furnace, USGS - NMWSC

Tsunami Evacuation Route Sign

https://www.usgs.gov/science-explorer-results?es=tsunamis 

Tsunami Evacuation Route Sign

https://www.usgs.gov/science-explorer-results?es=tsunamis