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ocean, beach, and blue sky with clouds
Puerto Rico beach
Puerto Rico beach
Puerto Rico beach

Scenic photo of Domes Beach in Rincon, Puerto Rico. Photo credit: Emily Himmelstoss.

Scenic photo of Domes Beach in Rincon, Puerto Rico. Photo credit: Emily Himmelstoss.

Scientists viewing data from a thermal camera installed in the National Park of American Samoa
Scientists viewing data from a thermal camera installed in the National Park of American Samoa on Ofu
Scientists viewing data from a thermal camera installed in the National Park of American Samoa on Ofu
Scientists viewing data from a thermal camera installed in the National Park of American Samoa on Ofu

Scientists viewing data from a thermal camera installed in the National Park of American Samoa on Ofu.

USGS and NPS scientists collecting a coral core within the National Park of American Samoa on Ofu
USGS and NPS scientists collecting a coral core within the National Park of American Samoa on Ofu
USGS and NPS scientists collecting a coral core within the National Park of American Samoa on Ofu
USGS and NPS scientists collecting a coral core within the National Park of American Samoa on Ofu

USGS and NPS scientists collecting a coral core within the National Park of American Samoa on Ofu.

Underwater image of Valonia fastigiata algae growing on a reef at Ofu
Underwater image of Valonia fastigiata algae growing on a reef at Ofu
Underwater image of Valonia fastigiata algae growing on a reef at Ofu
Underwater image of Valonia fastigiata algae growing on a reef at Ofu

Underwater image of Valonia fastigiata algae growing on a reef in the National Park of American Samoa on Ofu.

Animated GIF showing corrected thermal imagery from Ofu
Animated GIF showing corrected thermal imagery from Ofu, American Samoa
Animated GIF showing corrected thermal imagery from Ofu, American Samoa
Animated GIF showing corrected thermal imagery from Ofu, American Samoa

Animated GIF showing corrected thermal imagery of a groundwater plume discharging onto a reef at Ofu, American Samoa.

Scientists installing a wind and rain gauge in American Samoa
Scientists installing a wind and rain gauge on Ofu, American Samoa
Scientists installing a wind and rain gauge on Ofu, American Samoa
Scientists installing a wind and rain gauge on Ofu, American Samoa

Scientists installing a wind and rain gauge in the National Park of American Samoa on Ofu.

Map of Ofu, American Samoa, showing study sites
Map of Ofu, American Samoa, showing study sites
Map of Ofu, American Samoa, showing study sites
Map of Ofu, American Samoa, showing study sites

Map of Ofu, American Samoa, showing study sites to investigate outbreaks of Valonia fastigiata algae.

Aerial image of a reef flat from a thermal drone that captures both regular images and radiometric images
Aerial image of a reef flat from a thermal drone that captures both regular images and radiometric images
Aerial image of a reef flat from a thermal drone that captures both regular images and radiometric images
Aerial image of a reef flat from a thermal drone that captures both regular images and radiometric images

Aerial image of a reef flat on Ofu, American Samoa, from a thermal drone that captures both regular images and radiometric images.

USGS scientist collects water samples from a groundwater plume on a reef in American Samoa
USGS scientist collects water samples from a groundwater plume on a reef in American Samoa
USGS scientist collects water samples from a groundwater plume on a reef in American Samoa
USGS scientist collects water samples from a groundwater plume on a reef in American Samoa

A USGS scientist standing in ~2 feet of water collects water samples from a groundwater plume on a reef in American Samoa.

Scientists installing thermal camera on Ofu
Scientists installing thermal camera on Ofu
Scientists installing thermal camera on Ofu
Scientists installing thermal camera on Ofu

Scientists installing thermal camera in the National Park of American Samoa on Ofu.

Scientists conducting Electrical Resistivity Tomography surveys in American Samoa
Scientists conducting Electrical Resistivity Tomography surveys in American Samoa
Scientists conducting Electrical Resistivity Tomography surveys in American Samoa
Scientists conducting Electrical Resistivity Tomography surveys in American Samoa

Scientists conducting Electrical Resistivity Tomography surveys in American Samoa.

Coral cores collected within the National Park of American Samoa on Ofu
Coral cores collected within the National Park of American Samoa on Ofu
Coral cores collected within the National Park of American Samoa on Ofu
Coral cores collected within the National Park of American Samoa on Ofu

Coral cores collected within the National Park of American Samoa on the island of Ofu.

Graph showing corrected thermal camera imagery
Graph showing corrected thermal camera imagery
Graph showing corrected thermal camera imagery
Graph showing corrected thermal camera imagery

Graph showing corrected thermal camera imagery from the National Park of American Samoa on Ofu.

Image of drone with infrared camera on a beach in American Samoa
Image of drone with infrared camera on a beach in American Samoa
Image of drone with infrared camera on a beach in American Samoa
Image of drone with infrared camera on a beach in American Samoa

Drone used to collect infrared imagery of reefs in the National Park of American Samoa on Ofu.

Diagram showing thermal camera method
Diagram showing thermal camera method on Ofu, American Samoa
Diagram showing thermal camera method on Ofu, American Samoa
Diagram showing thermal camera method on Ofu, American Samoa

Thermal camera tower method. 1) Original oblique view data 2) Orthorectified nadir view 3) thermal corrections for angular and distance dependence 4) Calibrated thermal image. 

Thermal camera tower method. 1) Original oblique view data 2) Orthorectified nadir view 3) thermal corrections for angular and distance dependence 4) Calibrated thermal image. 

Diagram showing oceanographic and hydrogeologic processes on a reef-lined island
Diagram showing oceanographic and hydrogeologic processes on Ofu, American Samoa
Diagram showing oceanographic and hydrogeologic processes on Ofu, American Samoa
Diagram showing oceanographic and hydrogeologic processes on Ofu, American Samoa

Diagram showing oceanographic and hydrogeologic processes including submarine groundwater discharge on Ofu, American Samoa.

Graph showing component contributions to extreme water levels
Graph showing component contributions to extreme water levels
Graph showing component contributions to extreme water levels
Graph showing component contributions to extreme water levels

Component contributions to extreme water levels. Panel (a) shows GTSM-ERA5 stations (in black) with highlighted “multi-POT” node locations marked in red and numbered to correspond with panel (c).

Component contributions to extreme water levels. Panel (a) shows GTSM-ERA5 stations (in black) with highlighted “multi-POT” node locations marked in red and numbered to correspond with panel (c).

Study area for Modeling Coastal Flooding Dynamics Along the U.S. Southeast Atlantic Coast
Study area for Modeling Coastal Flooding Dynamics Along the U.S. Southeast Atlantic Coast
Study area for Modeling Coastal Flooding Dynamics Along the U.S. Southeast Atlantic Coast
Study area for Modeling Coastal Flooding Dynamics Along the U.S. Southeast Atlantic Coast

Study region with GTSM-ERA5 output locations marked as black circles and tide gauge locations marked as blue squares. Gray labels denote NOAA designated tide gauge station IDs. Information on tide gauges, including ID number, latitude, longitude, and the date when observations start, are listed in the table to the right of the map.

Study region with GTSM-ERA5 output locations marked as black circles and tide gauge locations marked as blue squares. Gray labels denote NOAA designated tide gauge station IDs. Information on tide gauges, including ID number, latitude, longitude, and the date when observations start, are listed in the table to the right of the map.

Cover image for the geonarrative "Paleoclimate: Lessons from the past, roadmap for the future"
Cover image for the geonarrative "Paleoclimate: Lessons from the past, roadmap for the future"
Cover image for the geonarrative "Paleoclimate: Lessons from the past, roadmap for the future"
Cover image for the geonarrative "Paleoclimate: Lessons from the past, roadmap for the future"

Cover image for the geonarrative "Paleoclimate: Lessons from the past, roadmap for the future". In this interactive geonarrative, viewers can explore the different applications of USGS paleoclimate research.

Cover image for the geonarrative "Paleoclimate: Lessons from the past, roadmap for the future". In this interactive geonarrative, viewers can explore the different applications of USGS paleoclimate research.