In this video, you can hear the honks and quacks of geese and ducks ring through the air, as birds fly in every direction above a wetland. This video was captured at Sacramento National Wildlife Refuge in November 2019, not long after geese and ducks began to arrive to spend the winter in the California Central Valley.
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The USGS is a science organization that provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information.
Sounds of Yellowstone
Sounds of Yellowstone
The USGS Sounds of Yellowstone series lets you listen to the natural sounds of geysers, hot springs, and mudpots found through Yellowstone National Park in Wyoming, USA.
Image of the Week
Image of the Week
A weekly series from the USGS Earth Resources Observation and Science (EROS) Center highlighting satellite image(s) featuring striking changes to the Earth's surface.
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Wintering Waterfowl at Sacramento National Wildlife Refuge
In this video, you can hear the honks and quacks of geese and ducks ring through the air, as birds fly in every direction above a wetland. This video was captured at Sacramento National Wildlife Refuge in November 2019, not long after geese and ducks began to arrive to spend the winter in the California Central Valley.
Approved euthanasia methods for bats (Microchiroptera)
This video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
This video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
Approved euthanasia methods for bats (Microchiroptera)—Audio-Described
This video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
This video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
Collecting a bat skin biopsy for white-nose syndrome surveillance
This video demonstrates the proper procedure for collecting a skin biopsy from a bat when conducting white-nose syndrome surveillance.
This video demonstrates the proper procedure for collecting a skin biopsy from a bat when conducting white-nose syndrome surveillance.
Collecting a bat skin biopsy for white-nose syndrome surveillance (AD)
This video demonstrates the proper procedure for collecting a skin biopsy from a bat when conducting white-nose syndrome surveillance.
This video demonstrates the proper procedure for collecting a skin biopsy from a bat when conducting white-nose syndrome surveillance.
Collecting a skin swab for white-nose syndrome surveillance
This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
Collecting a skin swab for white-nose syndrome surveillance (AD)
This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
Environmental Sampling for White-Nose Syndrome Surveillance
Environmental samples collected in or near bat roosting locations can be used to supplement samples collected from bats for surveillance for white-nose syndrome (WNS) (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome).
Environmental samples collected in or near bat roosting locations can be used to supplement samples collected from bats for surveillance for white-nose syndrome (WNS) (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome).
Environmental Sampling for White-Nose Syndrome Surveillance —AD
Audio-described version
UV Screening for Bat White-Nose Syndrome Surveillance
Long-wave ultraviolet (UV) light can be used to detect orange fluorescence associated with white-nose syndrome (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome-surveillance) on bat skin.
Long-wave ultraviolet (UV) light can be used to detect orange fluorescence associated with white-nose syndrome (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome-surveillance) on bat skin.
UV Screening for Bat White-Nose Syndrome Surveillance —Audio-Described
Long-wave ultraviolet (UV) light can be used to detect orange fluorescence associated with white-nose syndrome (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome-surveillance) on bat skin.
Long-wave ultraviolet (UV) light can be used to detect orange fluorescence associated with white-nose syndrome (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome-surveillance) on bat skin.
Yellowstone Volcano Observatory Monthly Update: November 1, 2019
Mike Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone during the month of October 2019
Mike Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone during the month of October 2019
Animation depicting seasonal cycles on Alaska's Arctic bluffs
In the spring, winter sea ice thaws and moves offshore leaving the coast exposed to increased wave action and relatively warm water temperatures that, when in contact with the bluff, erodes the toe of the bluff.
In the spring, winter sea ice thaws and moves offshore leaving the coast exposed to increased wave action and relatively warm water temperatures that, when in contact with the bluff, erodes the toe of the bluff.
Image of the Week - Massive Berg Adrift in Antarctica
In September of 2019, a 315 ton iceberg known as D28 broke free from the Amery Ice Shelf in Antarctica. The berg has a surface area of more than 600 square miles, roughly comparable to the size of the Hawaiian island of Oahu. It's the largest iceberg to calve from the ice shelf since the 1960s. (Imagery captured by Landsat satellites.)
In September of 2019, a 315 ton iceberg known as D28 broke free from the Amery Ice Shelf in Antarctica. The berg has a surface area of more than 600 square miles, roughly comparable to the size of the Hawaiian island of Oahu. It's the largest iceberg to calve from the ice shelf since the 1960s. (Imagery captured by Landsat satellites.)
Reconnaissance video taken prior to October 26 water sampling mission
Prior to the Unoccupied Aircraft System (UAS) mission that collected a water sample from Halema‘uma‘u at Kīlauea's summit on October 26, reconnaissance UAS missions were flown. This video, taken over a period of 15 minutes, has been sped up 7 times to show the UAS as it approaches Halema‘uma‘u from the southwest.
Prior to the Unoccupied Aircraft System (UAS) mission that collected a water sample from Halema‘uma‘u at Kīlauea's summit on October 26, reconnaissance UAS missions were flown. This video, taken over a period of 15 minutes, has been sped up 7 times to show the UAS as it approaches Halema‘uma‘u from the southwest.
Reconnaissance video taken prior to October 26 water sampling mission
The Unoccupied Aircraft System (UAS) that collected water from the crater lake in Halema‘uma‘u on October 26 was outfitted with both visual and infrared (thermal) cameras. This reconnaissance video shows fumarolic activity on the walls of the crater. Fumaroles appear light in color (yellow and white) in the visual imagery due to alteration of the crater wall rock.
The Unoccupied Aircraft System (UAS) that collected water from the crater lake in Halema‘uma‘u on October 26 was outfitted with both visual and infrared (thermal) cameras. This reconnaissance video shows fumarolic activity on the walls of the crater. Fumaroles appear light in color (yellow and white) in the visual imagery due to alteration of the crater wall rock.
Reconnaissance video taken prior to October 26 water sampling mission
In this October 26 reconnaissance survey, the Unoccupied Aircraft System (UAS) reaches the northeast part of the Halema‘uma‘u crater lake, where large rocks at the lake margin are often used to visually track the rising water level. Taken over a period of about 5.5 minutes, the survey is shown at 3 times the speed it was filmed.
In this October 26 reconnaissance survey, the Unoccupied Aircraft System (UAS) reaches the northeast part of the Halema‘uma‘u crater lake, where large rocks at the lake margin are often used to visually track the rising water level. Taken over a period of about 5.5 minutes, the survey is shown at 3 times the speed it was filmed.
Thermal video of the October 26 Halema‘uma‘u water sampling mission
This thermal video was captured by the UAS as it collected a water sample in Halema‘uma‘u, at Kīlauea's summit.
This thermal video was captured by the UAS as it collected a water sample in Halema‘uma‘u, at Kīlauea's summit.
Video of the October 26 Halema‘uma‘u water sampling mission
This video was captured by the unmanned aircraft system (UAS) as it collected a water sample in Halema‘uma‘u, at Kīlauea's summit. Limited UAS flights in this area are conducted with permission and coordination with Hawai‘i Volcanoes National Park.
This video was captured by the unmanned aircraft system (UAS) as it collected a water sample in Halema‘uma‘u, at Kīlauea's summit. Limited UAS flights in this area are conducted with permission and coordination with Hawai‘i Volcanoes National Park.
Video of UAS water sampling, Kīlauea summit
This video shows the unmanned aircraft system (UAS) collecting a water sample from Halema‘uma‘u. This wider view shows the scale of the UAS relative to the water pond. USGS video by M. Patrick, 26 Oct 2019.
This video shows the unmanned aircraft system (UAS) collecting a water sample from Halema‘uma‘u. This wider view shows the scale of the UAS relative to the water pond. USGS video by M. Patrick, 26 Oct 2019.
Video of UAS water sampling, Kīlauea summit
This video shows another view of the unmanned aircraft system sampling water from Halema‘uma‘u. USGS video by C. Parcheta, 26 Oct 2019.
This video shows another view of the unmanned aircraft system sampling water from Halema‘uma‘u. USGS video by C. Parcheta, 26 Oct 2019.