The crew of research vessel Bold Horizon with USGS science crew prepare to launch the Chirp sub-bottom profiler off the west coast near northern California and southern Oregon.
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Lowering Chirp from R/V Bold Horizon
The crew of research vessel Bold Horizon with USGS science crew prepare to launch the Chirp sub-bottom profiler off the west coast near northern California and southern Oregon.
Active Layer Network, Alaska.
From left to right: Ryan Toohey, Bernard TKTKTK, Jeremy Littell (AK CASC Lead Scientist), Malinda Chase (AK CASC Tribal Liaison), Philomena Keyes, and Victor Tonuchuk, Jr. at the Active Layer Network site in Kotlik, Alaska.
From left to right: Ryan Toohey, Bernard TKTKTK, Jeremy Littell (AK CASC Lead Scientist), Malinda Chase (AK CASC Tribal Liaison), Philomena Keyes, and Victor Tonuchuk, Jr. at the Active Layer Network site in Kotlik, Alaska.
Core recovery
USGS scientists Pete Dal Ferro and Jenny McKee securing a recently collected jumbo piston core (JPC) on the back deck of M/V Bold Horizon for preliminary core processing.
USGS scientists Pete Dal Ferro and Jenny McKee securing a recently collected jumbo piston core (JPC) on the back deck of M/V Bold Horizon for preliminary core processing.
Dale Griffin is interviewed about dust and harmful algal blooms
Dale Griffin is interviewed about dust and harmful algal bloomsDale Griffin of the St. Petersburg Coastal and Marine Science Center is interviewed about the links between Saharan dust and harmful algal blooms off the coast of Florida.
Dale Griffin is interviewed about dust and harmful algal blooms
Dale Griffin is interviewed about dust and harmful algal bloomsDale Griffin of the St. Petersburg Coastal and Marine Science Center is interviewed about the links between Saharan dust and harmful algal blooms off the coast of Florida.
Hooray for sediment cores!
Dr. Nora Nieminski is a research geologist and Mendenhall Fellow at the USGS Pacific Coastal and Marine Science Center in Santa Cruz, California. She is pictured here, on board Marine Vessel Bold Horizon, with a piston core sample collected from the southern Cascadia subduction zone offshore of northern California/southern Oregon.
Dr. Nora Nieminski is a research geologist and Mendenhall Fellow at the USGS Pacific Coastal and Marine Science Center in Santa Cruz, California. She is pictured here, on board Marine Vessel Bold Horizon, with a piston core sample collected from the southern Cascadia subduction zone offshore of northern California/southern Oregon.
Jumbo piston corer with mud from the seafloor
After recovery, the jumbo piston corer sits on the deck of research vessel Bold Horizon in its launch and recovery system. This muddy collar is removed to reveal the removable length of the core, which sits within a stiff plastic tube inside the metal tube.
After recovery, the jumbo piston corer sits on the deck of research vessel Bold Horizon in its launch and recovery system. This muddy collar is removed to reveal the removable length of the core, which sits within a stiff plastic tube inside the metal tube.
Making a shear vane measurement on a gravity core
USGS scientist Janet Watt making a shear vane measurement on a gravity core to understand how the seafloor responds to earthquake shaking.
USGS scientist Janet Watt making a shear vane measurement on a gravity core to understand how the seafloor responds to earthquake shaking.
Members of the Kotlik (Querrullik) governance
Various members of the Kotlik (Querrullik) governance talking about environmental changes for the Building Resilience Project.
Various members of the Kotlik (Querrullik) governance talking about environmental changes for the Building Resilience Project.
Preparing the jumbo piston corer
USGS marine technician Jenny McKee prepares the jumbo piston corer for launching off research vessel Bold Horizon off the coast of California and Oregon. The corer will collect sediment samples from the seafloor. Scientists will examine the sediment to determine its age, character, and distribution. This area off the west coast of the U.S.
USGS marine technician Jenny McKee prepares the jumbo piston corer for launching off research vessel Bold Horizon off the coast of California and Oregon. The corer will collect sediment samples from the seafloor. Scientists will examine the sediment to determine its age, character, and distribution. This area off the west coast of the U.S.
Taking Active Layer Network measurements, Alaska
Malinda Chase (AK CASC Tribal Liaison), Jeremy Littell (AK CASC Lead Scientist), Victor Tonuchuk, Jr., Philomena Keyes, and Bernard TKTKTK taking Active Layer Network measurements in Kotlik, Alaska.
Malinda Chase (AK CASC Tribal Liaison), Jeremy Littell (AK CASC Lead Scientist), Victor Tonuchuk, Jr., Philomena Keyes, and Bernard TKTKTK taking Active Layer Network measurements in Kotlik, Alaska.
Yellowstone Volcano Observatory Monthly Update: October 1, 2019
Yellowstone Volcano Observatory Monthly Update: October 1, 2019Mike Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone during the month of September 2019.
Yellowstone Volcano Observatory Monthly Update: October 1, 2019
Yellowstone Volcano Observatory Monthly Update: October 1, 2019Mike Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone during the month of September 2019.
The governance of Kotlik (Querrullik), Alaska
The governance of Kotlik (Querrullik) in Alaska.
The governance of Kotlik (Querrullik) in Alaska.
Prototype Earthquake Early Warning System (Interview)
Prototype Earthquake Early Warning System (Interview)Retired seismologist David Oppenheimer reflects on the first prototype earthquake early warning system used during the 1989 Loma Prieta earthquake. Scientists deployed an analog system to notify first responders of impending earthquake activity as they worked on rescue efforts at the Cypress Viaduct collapse in Oakland, CA.
Prototype Earthquake Early Warning System (Interview)
Prototype Earthquake Early Warning System (Interview)Retired seismologist David Oppenheimer reflects on the first prototype earthquake early warning system used during the 1989 Loma Prieta earthquake. Scientists deployed an analog system to notify first responders of impending earthquake activity as they worked on rescue efforts at the Cypress Viaduct collapse in Oakland, CA.
Santa Barbara survey
Goleta Beach in Santa Barbara experienced an unusual storm and large wave event in the Spring of 2014. Gaviota Pier, seen far off in the background, sustained heavy damage as did the restaurants on the pier and nearby. The USGS conducts seasonal surveys throught the year to see how the beaches are changing through time.
Goleta Beach in Santa Barbara experienced an unusual storm and large wave event in the Spring of 2014. Gaviota Pier, seen far off in the background, sustained heavy damage as did the restaurants on the pier and nearby. The USGS conducts seasonal surveys throught the year to see how the beaches are changing through time.
Finley, a female Kemp's ridley sea turtle
A female Kemp's ridley sea turtle, named Finley, shows off the popoff ADL (orange) and satellite tag (blue).
A female Kemp's ridley sea turtle, named Finley, shows off the popoff ADL (orange) and satellite tag (blue).
Pondering the pond: what Halema‘uma‘u water chemistry tells us
Pondering the pond: what Halema‘uma‘u water chemistry tells usUSGS Hawaiian Volcano Observatory and DOI Office of Aviation staff prepare the sampling mechanism (on blue tarp) and inspect the Unmanned Aircraft System (UAS) just before it took off to collect water from the Halema‘uma‘u crater lake. Brightly-colored flagging tape tied to a cable attached to the UAS indicated depth as the sampling tool was lowered into the water.
Pondering the pond: what Halema‘uma‘u water chemistry tells us
Pondering the pond: what Halema‘uma‘u water chemistry tells usUSGS Hawaiian Volcano Observatory and DOI Office of Aviation staff prepare the sampling mechanism (on blue tarp) and inspect the Unmanned Aircraft System (UAS) just before it took off to collect water from the Halema‘uma‘u crater lake. Brightly-colored flagging tape tied to a cable attached to the UAS indicated depth as the sampling tool was lowered into the water.
Pondering the pond: what Halema‘uma‘u water chemistry tells us
Pondering the pond: what Halema‘uma‘u water chemistry tells usWater collected from the lake at the bottom of Halema‘uma‘u is prepared for laboratory analyses at the USGS California Volcano Observatory. Results thus far reveal chemistry indicative of complex reactions between the water, magmatic gases, and Kīlauea's basaltic rocks. USGS photo by S. Peek, October 2019.
Pondering the pond: what Halema‘uma‘u water chemistry tells us
Pondering the pond: what Halema‘uma‘u water chemistry tells usWater collected from the lake at the bottom of Halema‘uma‘u is prepared for laboratory analyses at the USGS California Volcano Observatory. Results thus far reveal chemistry indicative of complex reactions between the water, magmatic gases, and Kīlauea's basaltic rocks. USGS photo by S. Peek, October 2019.
Landsat image of Star dunes, Sossusvlei, Namibia.
Star dunes, colored red by iron oxide sand, are seen in this Landsat scene from Sossusvlei in Namibia.
Star dunes, colored red by iron oxide sand, are seen in this Landsat scene from Sossusvlei in Namibia.
Photomicrographs from a wing roll of a little brown bat
Photomicrographs from a wing roll of a little brown batPhotomicrographs from a wing roll of a little brown bat (Myotis lucifugus). PAS. (A) At low magnification, PAS-positive foci are easily detectable. (B) Multifocal cup-shaped ulcers (thick arrow) of the epidermis are scattered over the wing membrane surface. Inflammatory response is lacking.
Photomicrographs from a wing roll of a little brown bat
Photomicrographs from a wing roll of a little brown batPhotomicrographs from a wing roll of a little brown bat (Myotis lucifugus). PAS. (A) At low magnification, PAS-positive foci are easily detectable. (B) Multifocal cup-shaped ulcers (thick arrow) of the epidermis are scattered over the wing membrane surface. Inflammatory response is lacking.
USGS gage 11451800 Cache Creek at Rumsey, CA
Water appears in Halemaʻumaʻu - Kīlauea Volcano
USGS Hawaiian Volcano Observatory scientists Matt Patrick and Jim Kauahikaua talk about the water that appeared at the bottom of Halemaʻumaʻu, a crater at the summit of Kīlauea Volcano, in July 2019 and continues to rise today. They address why it appeared, how it’s monitored, and its potential hazards.
USGS Hawaiian Volcano Observatory scientists Matt Patrick and Jim Kauahikaua talk about the water that appeared at the bottom of Halemaʻumaʻu, a crater at the summit of Kīlauea Volcano, in July 2019 and continues to rise today. They address why it appeared, how it’s monitored, and its potential hazards.