Map of American Samoa and study area of the American Samoa Mapping Project.
Multimedia
Images
Map of American Samoa and study area
Map of American Samoa and study area of the American Samoa Mapping Project.
Rotating x-ray computed tomography scanner with coral core
Rotating x-ray computed tomography scanner with coral coreRotating x-ray computed tomography scanner with coral core. Inset photograph shows a coral core (Orbicella spp.) inside an aluminum sleeve together with coral density standards on the top used for calibration.
Rotating x-ray computed tomography scanner with coral core
Rotating x-ray computed tomography scanner with coral coreRotating x-ray computed tomography scanner with coral core. Inset photograph shows a coral core (Orbicella spp.) inside an aluminum sleeve together with coral density standards on the top used for calibration.
Seasonal teleconnections between ENSO and shoreline positions, waves, and water levels throughout the PNW
Seasonal teleconnections between ENSO and shoreline positions, waves, and water levels throughout the PNWSeasonal teleconnections between ENSO and shoreline positions, waves, and water levels throughout the PNW.
Seasonal teleconnections between ENSO and shoreline positions, waves, and water levels throughout the PNW
Seasonal teleconnections between ENSO and shoreline positions, waves, and water levels throughout the PNWSeasonal teleconnections between ENSO and shoreline positions, waves, and water levels throughout the PNW.
Scientists analyzing material extracted from sediment cores
Scientists analyzing material extracted from sediment coresUSGS scientists collect core samples from estuaries, lakes, coasts, and marine environments to study a range of physical and chemical properties preserved in sediments over time. They process and analyze these core samples in the Pacific Coastal and Marine Science Center’s Core Labs.
Scientists analyzing material extracted from sediment cores
Scientists analyzing material extracted from sediment coresUSGS scientists collect core samples from estuaries, lakes, coasts, and marine environments to study a range of physical and chemical properties preserved in sediments over time. They process and analyze these core samples in the Pacific Coastal and Marine Science Center’s Core Labs.
Scientists wrapping a split sediment core in plastic
Scientists wrapping a split sediment core in plasticUSGS scientists collect core samples from estuaries, lakes, coasts, and marine environments to study a range of physical and chemical properties preserved in sediments over time. They process and analyze these core samples in the Pacific Coastal and Marine Science Center’s Core Labs.
Scientists wrapping a split sediment core in plastic
Scientists wrapping a split sediment core in plasticUSGS scientists collect core samples from estuaries, lakes, coasts, and marine environments to study a range of physical and chemical properties preserved in sediments over time. They process and analyze these core samples in the Pacific Coastal and Marine Science Center’s Core Labs.
Scientists sub-sampling split sediment cores_2
USGS scientists collect core samples from estuaries, lakes, coasts, and marine environments to study a range of physical and chemical properties preserved in sediments over time. They process and analyze these core samples in the Pacific Coastal and Marine Science Center’s Core Labs.
USGS scientists collect core samples from estuaries, lakes, coasts, and marine environments to study a range of physical and chemical properties preserved in sediments over time. They process and analyze these core samples in the Pacific Coastal and Marine Science Center’s Core Labs.
Videos
Ozette Lake Paleoseismology
Ozette Lake is located above the locked portion of the northern Cascadia megathrust and is relatively isolated from other active faults.
Ozette Lake is located above the locked portion of the northern Cascadia megathrust and is relatively isolated from other active faults.
Ozette Lake Paleoseismology (AD)
Ozette Lake is located above the locked portion of the northern Cascadia megathrust and is relatively isolated from other active faults.
Ozette Lake is located above the locked portion of the northern Cascadia megathrust and is relatively isolated from other active faults.
Hawai'i Abyssal Nodules Expedition
In Fall 2025 the Hawaiʻi Abyssal Nodules and Associated Ecosystems Expedition, led by USGS scientists, will investigate the geology, minerals, and environmental setting of the deep seabed offshore Moku o Keawe (Hawaiʻi Island) in the U.S. Exclusive Economic Zone. This work is part of ongoing collaborative efforts with BOEM and NOAA.
In Fall 2025 the Hawaiʻi Abyssal Nodules and Associated Ecosystems Expedition, led by USGS scientists, will investigate the geology, minerals, and environmental setting of the deep seabed offshore Moku o Keawe (Hawaiʻi Island) in the U.S. Exclusive Economic Zone. This work is part of ongoing collaborative efforts with BOEM and NOAA.
Hawai'i Abyssal Nodules Expedition (AD)
In Fall 2025 the Hawaiʻi Abyssal Nodules and Associated Ecosystems Expedition, led by USGS scientists, will investigate the geology, minerals, and environmental setting of the deep seabed offshore Moku o Keawe (Hawaiʻi Island) in the U.S. Exclusive Economic Zone. This work is part of ongoing collaborative efforts with BOEM and NOAA.
In Fall 2025 the Hawaiʻi Abyssal Nodules and Associated Ecosystems Expedition, led by USGS scientists, will investigate the geology, minerals, and environmental setting of the deep seabed offshore Moku o Keawe (Hawaiʻi Island) in the U.S. Exclusive Economic Zone. This work is part of ongoing collaborative efforts with BOEM and NOAA.
USGS Coastal and Marine Field Operations
To conduct the science needed to understand coastal and marine geohazards, support habitat and resource management, and monitor how these environments change over time, the USGS Coastal and Marine Hazards and Resources Program relies on engineering, mechanical, and electronics expertise for field operations along the coast, in the nearshore environment, and in the d
To conduct the science needed to understand coastal and marine geohazards, support habitat and resource management, and monitor how these environments change over time, the USGS Coastal and Marine Hazards and Resources Program relies on engineering, mechanical, and electronics expertise for field operations along the coast, in the nearshore environment, and in the d
Characterizing organic carbon at Escanaba Trough (AD)
Characterizing organic carbon at Escanaba Trough (AD)The global ocean is a significant carbon sink, absorbing about a third of all atmospheric carbon dioxide (CO2) emissions (Gruber et al., 2019).
Characterizing organic carbon at Escanaba Trough (AD)
Characterizing organic carbon at Escanaba Trough (AD)The global ocean is a significant carbon sink, absorbing about a third of all atmospheric carbon dioxide (CO2) emissions (Gruber et al., 2019).
Audio
Eyes on Earth Episode 120 – Mapping the California Coastline
Eyes on Earth Episode 120 – Mapping the California CoastlineIn this episode of Eyes on Earth, we begin a series on Landsat’s usefulness in coastal studies. First, we talk with Sean Vitousek, a USGS research oceanographer, about changes to beaches in California and how he is using Landsat and other data to create models that can predict how the coastline may change in the future because of sea level rise and coastal erosion.
Eyes on Earth Episode 120 – Mapping the California Coastline
Eyes on Earth Episode 120 – Mapping the California CoastlineIn this episode of Eyes on Earth, we begin a series on Landsat’s usefulness in coastal studies. First, we talk with Sean Vitousek, a USGS research oceanographer, about changes to beaches in California and how he is using Landsat and other data to create models that can predict how the coastline may change in the future because of sea level rise and coastal erosion.
Webcams
Nuvuk video camera 2 dark image
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Nuvuk video camera 2 bright image
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Nuvuk video camera 1 dark image
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Nuvuk video camera 2 variance image
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Nuvuk video camera 2 snapshop
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Nuvuk video camera 2 time exposure
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.
Two video cameras are installed atop a utility pole near the northernmost point of land in the United States at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes.