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View looking to the northwest of western fissure area of Halema‘uma‘u lava lake at the Kīlauea summit on March 11, 2021. There is a small incandescent opening at the top of the main (southern) west vent spatter cone (middle-left), and a few smaller incandescent openings at the top of the northern west vent spatter cone (right of the main cone).
View looking to the northwest of western fissure area of Halema‘uma‘u lava lake at the Kīlauea summit on March 11, 2021. There is a small incandescent opening at the top of the main (southern) west vent spatter cone (middle-left), and a few smaller incandescent openings at the top of the northern west vent spatter cone (right of the main cone).
This time-lapse sequence shows the growth of the lava lake in Halema‘uma‘u, at the summit of Kīlauea. The sequence starts on December 28, about a week after the start of the eruption and ends on March 10, 2021. The lake rises rapidly at first but then eventually slows down as the eruption rate gradually declines.
This time-lapse sequence shows the growth of the lava lake in Halema‘uma‘u, at the summit of Kīlauea. The sequence starts on December 28, about a week after the start of the eruption and ends on March 10, 2021. The lake rises rapidly at first but then eventually slows down as the eruption rate gradually declines.
How did the May 18, 1980 eruption of Mount St. Helens change peoples’ lives? Carolyn Driedger talks about events that led up to the 1980 eruption and influenced scientists’ response to it, as well as what happened on May 18, and how the eruption changed people's lives and professions.
How did the May 18, 1980 eruption of Mount St. Helens change peoples’ lives? Carolyn Driedger talks about events that led up to the 1980 eruption and influenced scientists’ response to it, as well as what happened on May 18, and how the eruption changed people's lives and professions.
Grinnell Glacier in 1910 (Elrod photo, U of M Collection) and 2016 (McKeon photo, USGS). Retreat resulted in glacier fragmentation, so the 2016 scene shows both Grinnell Glacier, hugging the base of the cliff, and The Salamander Glacier, perched above, along the right edge of the photograph.
Grinnell Glacier in 1910 (Elrod photo, U of M Collection) and 2016 (McKeon photo, USGS). Retreat resulted in glacier fragmentation, so the 2016 scene shows both Grinnell Glacier, hugging the base of the cliff, and The Salamander Glacier, perched above, along the right edge of the photograph.
Shepard Glacier: 9/6/1913, WC Alden, USGS Photo Library – 8/21/2005, B. Reardon, USGS
Shepard Glacier: 9/6/1913, WC Alden, USGS Photo Library – 8/21/2005, B. Reardon, USGS
Sperry Glacier: circa 1930, MJ Elrod, U of M Library – 9/17/2008, L McKeon, USGS
Repeating this photo from the same photo point was impossible since the historic photo was shot from the elevated perspective of the glacier’s surface.
Sperry Glacier: circa 1930, MJ Elrod, U of M Library – 9/17/2008, L McKeon, USGS
Repeating this photo from the same photo point was impossible since the historic photo was shot from the elevated perspective of the glacier’s surface.
Barrier islands off the coast of northern Pinellas County, Florida including Anclote Key, Three Rooker Island, and the northern tip of Honeymoon Island. These barriers protect a highly populated coastline.
Barrier islands off the coast of northern Pinellas County, Florida including Anclote Key, Three Rooker Island, and the northern tip of Honeymoon Island. These barriers protect a highly populated coastline.
Grinnell and The Salamander Glaciers from the summit of Mt. Gould: 1938, TJ Hileman, GNP Archives – 9/4/2019, L McKeon, USGS
Upper Grinnell Lake has formed as the glacier has retreated. The change in height of Grinnell Glacier along the cliff face hints at volume loss during this timespan.
Grinnell and The Salamander Glaciers from the summit of Mt. Gould: 1938, TJ Hileman, GNP Archives – 9/4/2019, L McKeon, USGS
Upper Grinnell Lake has formed as the glacier has retreated. The change in height of Grinnell Glacier along the cliff face hints at volume loss during this timespan.
Jackson Glacier: 1912, MJ Elrod, U of M Library – 9/3/2009, L McKeon, USGS
Trees and vegetation continue to establish themselves at the base of Jackson Glacier as the glacier retreats.
Jackson Glacier: 1912, MJ Elrod, U of M Library – 9/3/2009, L McKeon, USGS
Trees and vegetation continue to establish themselves at the base of Jackson Glacier as the glacier retreats.
Logan and Red Eagle Glaciers: Aug. 1914, EC Stebinger, USGS Photo Library – 9/2/2009, L McKeon, USGS
These glaciers were once a continuous glacier, but became separate glaciers as retreat progressed.
Logan and Red Eagle Glaciers: Aug. 1914, EC Stebinger, USGS Photo Library – 9/2/2009, L McKeon, USGS
These glaciers were once a continuous glacier, but became separate glaciers as retreat progressed.
Swiftcurrent Glacier: circa 1910, M. Elod, GNP Archives - 9/27/2016, L McKeon, USGS
During the timespan between these photos, it is evident that Swiftcurrent Glacier has retreated and wildfire has consumed a patch of trees at the base of Swiftcurrent Mountain, the broad, beige slope in the background.
Swiftcurrent Glacier: circa 1910, M. Elod, GNP Archives - 9/27/2016, L McKeon, USGS
During the timespan between these photos, it is evident that Swiftcurrent Glacier has retreated and wildfire has consumed a patch of trees at the base of Swiftcurrent Mountain, the broad, beige slope in the background.
Landsat satellites have monitoring the Earth’s surface for nearly 50 years, providing critical information for countless areas of study and real-world applications. But with observations only collected every 8-16 days, there are limits to what can be tracked.
Landsat satellites have monitoring the Earth’s surface for nearly 50 years, providing critical information for countless areas of study and real-world applications. But with observations only collected every 8-16 days, there are limits to what can be tracked.
USGS scientists Jason Sorenson and Andrea Tokranov (out of the image) collecting lake-bottom sediments from Ashumet Pond on Cape Cod, Massachusetts for use in laboratory experiments on the fate of PFAS at groundwater/surface-water boundaries. The sediments are collected by pushing a tube into the lake bottom and transferring the sediment and pore water in
USGS scientists Jason Sorenson and Andrea Tokranov (out of the image) collecting lake-bottom sediments from Ashumet Pond on Cape Cod, Massachusetts for use in laboratory experiments on the fate of PFAS at groundwater/surface-water boundaries. The sediments are collected by pushing a tube into the lake bottom and transferring the sediment and pore water in
A close-up of the western fissure on Sunday, March 7, within Halema‘uma‘u at the summit of Kīlauea. The photos shows a minor change in the vent configuration over the preceding few days. A new lava stream was active north of the normal lava stream entering the lake. This new lava stream was perched above the lake surface, and fed a narrow channel entering the lake.
A close-up of the western fissure on Sunday, March 7, within Halema‘uma‘u at the summit of Kīlauea. The photos shows a minor change in the vent configuration over the preceding few days. A new lava stream was active north of the normal lava stream entering the lake. This new lava stream was perched above the lake surface, and fed a narrow channel entering the lake.
A wider view of the western portion of the lava lake within Halema‘uma‘u, at the summit of Kīlauea on Sunday, March 7. The lake has developed a subtle levee on its south margin (just below the center of the photo), with several lava streams cascading down onto the lower level on the eastern end of the levee. USGS photo by M. Patrick.
A wider view of the western portion of the lava lake within Halema‘uma‘u, at the summit of Kīlauea on Sunday, March 7. The lake has developed a subtle levee on its south margin (just below the center of the photo), with several lava streams cascading down onto the lower level on the eastern end of the levee. USGS photo by M. Patrick.
This timelapse sequence shows several hours of activity in the lava lake in Halema‘uma‘u, at the summit of Kīlauea. Between March 5-7 a small lava pond developed near the vent. At approximately 1 pm on March 7, the levee of the pond collapsed, allowing the pond lava to drain into the main lake.
This timelapse sequence shows several hours of activity in the lava lake in Halema‘uma‘u, at the summit of Kīlauea. Between March 5-7 a small lava pond developed near the vent. At approximately 1 pm on March 7, the levee of the pond collapsed, allowing the pond lava to drain into the main lake.
No matter the season, groundwater science continues! In this March photo, Hydrologic Technician Jeremiah Pomerleau is making groundwater measurements and inspecting the USGS groundwater site monitoring equipment. Due to snowy terrain, Pomerleau used a utility terrain vehicle (UTV) to access the well, requiring a trek of about 15 miles from the main road.
No matter the season, groundwater science continues! In this March photo, Hydrologic Technician Jeremiah Pomerleau is making groundwater measurements and inspecting the USGS groundwater site monitoring equipment. Due to snowy terrain, Pomerleau used a utility terrain vehicle (UTV) to access the well, requiring a trek of about 15 miles from the main road.
On Friday, HVO geologists observed a breakout from the west vent within Halema‘uma‘u crater at the summit of Kīlauea Volcano. This photo shows the vent about an hour before the breakout occurred on the northern side of the cone.
On Friday, HVO geologists observed a breakout from the west vent within Halema‘uma‘u crater at the summit of Kīlauea Volcano. This photo shows the vent about an hour before the breakout occurred on the northern side of the cone.
Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour during daylight hours, the video camera collects imagery for 10 minutes and processes it. This is the snapshot image, like a photo, taken at the beginning of the 10-minute window and looking northeast.
Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour during daylight hours, the video camera collects imagery for 10 minutes and processes it. This is the snapshot image, like a photo, taken at the beginning of the 10-minute window and looking northeast.
Mendenhall postdoctoral fellow Daniel Ciarletta captured this view of the modern beach ridge system at Caladesi Island, along the Gulf coast of central Florida. Ciarletta and colleagues are studying the island as part of a project to explore barrier island response to long-term changes in sediment availability.
Mendenhall postdoctoral fellow Daniel Ciarletta captured this view of the modern beach ridge system at Caladesi Island, along the Gulf coast of central Florida. Ciarletta and colleagues are studying the island as part of a project to explore barrier island response to long-term changes in sediment availability.
The lava lake in Halema‘uma‘u crater remains active. This view looking to the northwest on Wednesday, March 4, 2021, focuses on the active portion of the lake; the eastern stagnant portion is out of view to the right. Lava enters the lake at the base of the western vent spatter cone (left).
The lava lake in Halema‘uma‘u crater remains active. This view looking to the northwest on Wednesday, March 4, 2021, focuses on the active portion of the lake; the eastern stagnant portion is out of view to the right. Lava enters the lake at the base of the western vent spatter cone (left).
