Photo roundup: November-December 2023

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Breadcrumbs Photo roundup: November-December 2023 Using sound to map the ocean floor Tubeworms found in eastern Galapagos Islands Beach Amaranth on Assateague Island over the past two decades Collect LiDAR and thermal data before restoration Get our news

A collection of coastal and ocean videos and photos from the U.S. Geological Survey.

Animated GIF of a ship using multibeam sonar to map the seafloor, adapted from a video provided by NOAA Ocean Exploration.

Using sound to map the ocean floor

The ocean covers 71% of the Earth’s surface. We have only scratched the surface of what lies beneath the sea.

Tube worms found in the Eastern Galapagos Dispersal Center during the October-November 2023 Ultra-Detailed Seafloor Mapping Expedition.

Tubeworms found in eastern Galapagos Islands

A research team including scientists from the U.S. Geological Survey returned to the Eastern Galapagos Spreading Center to investigate its deep-sea hydrothermal vents, where massive sulfide deposits form that may contain key marine minerals.

Time series of beach amaranth populations observed by NPS biologists during end-of-season surveys. Shaded areas indicate years with prolonged droughts during the amaranth growing season. Vertical lines indicate severe storms that occurred during the observation period. Inset is a photo of beach amaranth plants photographed on Assateague Island (Photo credit: NPS staff). Links: Developing a habitat model to support management of endangered seashore amaranth (Amaranthus pumilus) at Assateague Island National Seashore in Maryland and Virginia (usgs.gov)

Beach Amaranth on Assateague Island over the past two decades

The U.S. Geological Survey assessed the habitat preferences of seashore amaranth to better understand the factors that have led to the species’ significant decline in numbers at Assateague Island National Seashore. The National Park Service can use this information to make management decisions that can help increase seashore amaranth populations.

Unmanned Aircraft Systems (UAS) pilots from the U.S. Forest Service and U.S. Geological Survey in Kootenai National Forest, Montana.

Collect LiDAR and thermal data before restoration

In July and October, Jen Cramer and Jin-Si Over assisted USGS Unmanned Aircraft System (UAS) pilots from the USGS National Unmanned Systems Office (NUSO) and the Fort Collins Science Center to collect pre-restoration lidar and thermal survey data of the Vermillion River in the Kootenai National Forest in Montana before beginning to improve bull trout habitat. The project is a joint project of the USGS Fort Collins Science Center, the USGS Wyoming-Montana Water Science Center, and the U.S. Forest Service.

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