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Photo Contest Winner | July 2021 | USGS at Work
Certified USGS Heavy Equipment Operators Cameron Ensor and Nick Grim demolish a broad-crested weir at USGS Station 01574500 at Cordorus Creek in Spring Grove, PA
Photo Contest Winner | July 2021 | USGS at Work
Certified USGS Heavy Equipment Operators Cameron Ensor and Nick Grim demolish a broad-crested weir at USGS Station 01574500 at Cordorus Creek in Spring Grove, PA
The invasive species hemlock woolly adelgid is a threat to eastern hemlocks, filling some southeastern U.S. forests with what are called “gray ghosts” of the trees. Until recently, the insect had stayed in the southern part New York, but late last summer, an infestation was discovered in the Adirondacks.
The invasive species hemlock woolly adelgid is a threat to eastern hemlocks, filling some southeastern U.S. forests with what are called “gray ghosts” of the trees. Until recently, the insect had stayed in the southern part New York, but late last summer, an infestation was discovered in the Adirondacks.
Greenhouse study comparing plant performance during drought will help land managers choose plant species for restoring degraded lands. To find out more, follow the Restoration Assessment and Monitoring Program of the Southwest, housed at the Southwest Biolobigical Science Center. www.ugs.gov/sbsc/ramps
Greenhouse study comparing plant performance during drought will help land managers choose plant species for restoring degraded lands. To find out more, follow the Restoration Assessment and Monitoring Program of the Southwest, housed at the Southwest Biolobigical Science Center. www.ugs.gov/sbsc/ramps
A view of Halema‘uma‘u on June 11, 2021, at 12:20 p.m. HST. Although eruptive activity has paused at the Kīlauea summit, HVO geologists still monitor the lava lake and summit area regularly. They make observations to note any physical changes in the landscape or visual changes in gas emissions.
A view of Halema‘uma‘u on June 11, 2021, at 12:20 p.m. HST. Although eruptive activity has paused at the Kīlauea summit, HVO geologists still monitor the lava lake and summit area regularly. They make observations to note any physical changes in the landscape or visual changes in gas emissions.
Join USGS Hawaiian Volcano Observatory retired geologist Don Swanson on a virtual field visit to an exposure of the Keanakāko‘i Tephra near the summit of Kīlauea as part of Volcano Awareness Month.
Join USGS Hawaiian Volcano Observatory retired geologist Don Swanson on a virtual field visit to an exposure of the Keanakāko‘i Tephra near the summit of Kīlauea as part of Volcano Awareness Month.
Comparison of Porkchop Geyser in September 1984 (left) and August 1986 (right). The Geyser entered a period of near-constant eruption in 1985, and the pool disappeared; it exploded on September 5, 1989.
Comparison of Porkchop Geyser in September 1984 (left) and August 1986 (right). The Geyser entered a period of near-constant eruption in 1985, and the pool disappeared; it exploded on September 5, 1989.
A collage of images taken by UGS-GLSC employees during the 2020 field season.
A collage of images taken by UGS-GLSC employees during the 2020 field season.
Map of Yellowstone National Park showing the major rivers and the continental divide (red dashed). Yellowstone Caldera is oulined by purple dashed line. Water flowing south and west of the divide ends up in the Pacific Ocean, whereas water north and east of the divide ends up in the Gulf of Mexico.
Map of Yellowstone National Park showing the major rivers and the continental divide (red dashed). Yellowstone Caldera is oulined by purple dashed line. Water flowing south and west of the divide ends up in the Pacific Ocean, whereas water north and east of the divide ends up in the Gulf of Mexico.
This rat snake is a preserved museum specimen with snake fungal disease that was collected in Tennessee in 1973. The photo was taken at the USGS National Wildlife Health Center in 2017 as part of a study.
This rat snake is a preserved museum specimen with snake fungal disease that was collected in Tennessee in 1973. The photo was taken at the USGS National Wildlife Health Center in 2017 as part of a study.
Upper map shows the flow path of hot spring water from the Old Faithful area through the Firehole, Madison, Missouri and Mississippi Rivers to the Gulf of Mexico. Lower map shows the flow path of hot spring water from south of the continental divide through the Lewis, Snake and Columbia Rivers to the Pacific Ocean.
Upper map shows the flow path of hot spring water from the Old Faithful area through the Firehole, Madison, Missouri and Mississippi Rivers to the Gulf of Mexico. Lower map shows the flow path of hot spring water from south of the continental divide through the Lewis, Snake and Columbia Rivers to the Pacific Ocean.
View downstream from the bridge at USGS site 07241520, North Canadian River at Britton Rd at Oklahoma City, OK
View downstream from the bridge at USGS site 07241520, North Canadian River at Britton Rd at Oklahoma City, OK
I Am A...Wildlife Biologist coloring page
I Am A...Wildlife Biologist coloring page
On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of Kīlauea. Here, a geophysicist returns to the helicopter after making Global Positioning Systems (GPS) measurements. These surveys measure small changes in the ground surface caused by subsurface magma movement.
On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of Kīlauea. Here, a geophysicist returns to the helicopter after making Global Positioning Systems (GPS) measurements. These surveys measure small changes in the ground surface caused by subsurface magma movement.
No eruptive activity or major changes were observed during a USGS Hawaiian Volcano Observatory Kīlauea summit monitoring shift on June 8, 2021. An area near the north wall of Halema‘uma‘u continues to visibly emit gases, though the eruption has paused. The most recent sulfur dioxide emission rate, measured on June 4, remains slightly elevated at 54 tonnes per day.
No eruptive activity or major changes were observed during a USGS Hawaiian Volcano Observatory Kīlauea summit monitoring shift on June 8, 2021. An area near the north wall of Halema‘uma‘u continues to visibly emit gases, though the eruption has paused. The most recent sulfur dioxide emission rate, measured on June 4, remains slightly elevated at 54 tonnes per day.
Portions of Crater Rim Drive, which was damaged during the 2018 Kīlauea summit collapse, are visible from the south rim of Halema‘uma‘u. The lava lake within Halema‘uma‘u and the east wall of Halema‘uma‘u crater are visible in the background. This area of Hawai‘i Volcanoes National Park remains closed to the public due to hazardous conditions.
Portions of Crater Rim Drive, which was damaged during the 2018 Kīlauea summit collapse, are visible from the south rim of Halema‘uma‘u. The lava lake within Halema‘uma‘u and the east wall of Halema‘uma‘u crater are visible in the background. This area of Hawai‘i Volcanoes National Park remains closed to the public due to hazardous conditions.
A view of the crusted over lava lake within Halema‘uma‘u at Kīlauea summit, taken during a helicopter overflight on June 8, 2021. No incandescence (red lava) has been visible on the solidified lava lake surface for over two weeks. Light degassing continues in a few areas around the margin of the lava lake, mainly along the north crater wall (bottom left).
A view of the crusted over lava lake within Halema‘uma‘u at Kīlauea summit, taken during a helicopter overflight on June 8, 2021. No incandescence (red lava) has been visible on the solidified lava lake surface for over two weeks. Light degassing continues in a few areas around the margin of the lava lake, mainly along the north crater wall (bottom left).
AQSh Geologiya xizmati va Birlashgan Millatlar Tashkilotining Oziq-ovqat va qishloq xo'jaligi tashkiloti (FAO) maktablar uchun suv aylanishining sxemasini ishlab chiqdi.
Shahriyor Toshevning tarjimasi Geologiya fanlari universiteti magistranti
AQSh Geologiya xizmati va Birlashgan Millatlar Tashkilotining Oziq-ovqat va qishloq xo'jaligi tashkiloti (FAO) maktablar uchun suv aylanishining sxemasini ishlab chiqdi.
Shahriyor Toshevning tarjimasi Geologiya fanlari universiteti magistranti
The eruption in Halema`uma`u crater, at the summit of Kilauea, is no longer active. The lava lake that was active between December 2020 and May 2021 remains solidified at the surface. A routine summit overflight observed no signs of residual incandescence in cracks, and only a diffuse gas plume rising from the northern portion of the lake.
The eruption in Halema`uma`u crater, at the summit of Kilauea, is no longer active. The lava lake that was active between December 2020 and May 2021 remains solidified at the surface. A routine summit overflight observed no signs of residual incandescence in cracks, and only a diffuse gas plume rising from the northern portion of the lake.
Welcome to the "The I Am A..." series. This is the eighth video in a series of USGS whiteboard animations that highlight USGS careers.
Welcome to the "The I Am A..." series. This is the eighth video in a series of USGS whiteboard animations that highlight USGS careers.
332,5 million kub mil suvning 96 foizdan ko'prog'ini sho'r suv bilan ta'minlaydigan dunyoning umumiy suv ta'minoti qanday ekanligiga e'tibor bering. Umumiy chuchuk suvlarning 68 foizdan ko'prog'i muz va muzliklarda yashiringan. Chuchuk suvning yana 30 foizi er ostidadir.
332,5 million kub mil suvning 96 foizdan ko'prog'ini sho'r suv bilan ta'minlaydigan dunyoning umumiy suv ta'minoti qanday ekanligiga e'tibor bering. Umumiy chuchuk suvlarning 68 foizdan ko'prog'i muz va muzliklarda yashiringan. Chuchuk suvning yana 30 foizi er ostidadir.
Photo Contest Winner | June 2021 | Honorable Mention
USGS Natiave Bee Lab, Magicicada cassinii, super rare Blue eyed variant
Photo Contest Winner | June 2021 | Honorable Mention
USGS Natiave Bee Lab, Magicicada cassinii, super rare Blue eyed variant
