Permanent Site: A2 East Transect; Depth: 12.5 Meters (Feet 41.1); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.14130295, -123.58766124; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud. Annual seaweeds are present but not abundant.
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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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A2 East Transect – 2011
Permanent Site: A2 East Transect; Depth: 12.5 Meters (Feet 41.1); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.14130295, -123.58766124; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud. Annual seaweeds are present but not abundant.
A2 West Transect – 2011
Permanent Site: A2 West Transect; Depth: 13.0 Meters (Feet 42.7); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.14130295, -123.5883331; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud with scattered boulders. Annual species of seaweeds are present.
Permanent Site: A2 West Transect; Depth: 13.0 Meters (Feet 42.7); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.14130295, -123.5883331; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud with scattered boulders. Annual species of seaweeds are present.
Time-Lapse From Thermal Camera at Pu`u `Ō`ō
This Quicktime movie shows a timelapse sequence taken from a thermal camera on the south rim of Pu‘u ‘Ō‘ō, beginning just before noon on August 3. Just after 2pm, the lava lake and surrounding floor abruptly drop. As the lava lake drops, solidified portions of the crater floor slide into the fluid lava.
This Quicktime movie shows a timelapse sequence taken from a thermal camera on the south rim of Pu‘u ‘Ō‘ō, beginning just before noon on August 3. Just after 2pm, the lava lake and surrounding floor abruptly drop. As the lava lake drops, solidified portions of the crater floor slide into the fluid lava.
Time-Lapse of Lava Lake Drop at Pu`u `Ō`ō
This Quicktime movie shows a timelapse sequence taken from the webcam on Pu‘u ‘Ō‘ō's north rim. The movie starts just after noon on August 3, with the typical westward flow of lava within the perched lava lake. Just after 2pm, breakouts start on the flank of the perched lava lake and the lake begins to drop.
This Quicktime movie shows a timelapse sequence taken from the webcam on Pu‘u ‘Ō‘ō's north rim. The movie starts just after noon on August 3, with the typical westward flow of lava within the perched lava lake. Just after 2pm, breakouts start on the flank of the perched lava lake and the lake begins to drop.
PubTalk 7/2011 — How is San Francisco Bay Doing?
discoveries from 4 decades of studies
by Jim Cloern, Senior Research Biologist
discoveries from 4 decades of studies
by Jim Cloern, Senior Research Biologist
Climate Connections: Questions from North and South Carolina
America has questions about climate change, and the USGS has real answers. In this episode of Climate Connections, USGS scientists answer questions gathered from North and South Carolina.
America has questions about climate change, and the USGS has real answers. In this episode of Climate Connections, USGS scientists answer questions gathered from North and South Carolina.
Grizzly bear with cubs rubbing on a bridge
Bears rub on many objects other than trees. This clip shows a grizzly bear with two yearlings rubbing on a wooden bridge on a decommissioned forest road. Barbed wire is attached to the wooden bridge beams and the bear rub tree next to the bridge to collect bear hair. This footage is still photos from a remote camera that have been stitched together in sequence.
Bears rub on many objects other than trees. This clip shows a grizzly bear with two yearlings rubbing on a wooden bridge on a decommissioned forest road. Barbed wire is attached to the wooden bridge beams and the bear rub tree next to the bridge to collect bear hair. This footage is still photos from a remote camera that have been stitched together in sequence.
Land Area Change in Coastal Louisiana (1932 to 2010)
Coastal Louisiana wetlands make up the seventh largest delta on Earth, contain about 37 percent of the estuarine herbaceous marshes in the conterminous United States, and support the largest commercial fishery in the lower 48 States.
By
Coastal Louisiana wetlands make up the seventh largest delta on Earth, contain about 37 percent of the estuarine herbaceous marshes in the conterminous United States, and support the largest commercial fishery in the lower 48 States.
By
Recreating baseflow channels, Howards Branch, Baltimore, Maryland
Faith Fitzpatrick (U.S. Geological Survey) and Joe Berg (BioHabitats, Inc.) describe base-flow channels and sand seepage wetlands in a wetland complex at an old millpond setting along a highly urban section of Howards Branch. Recreated baseflow channels enhance changes in width with increased stormwater flow.
Faith Fitzpatrick (U.S. Geological Survey) and Joe Berg (BioHabitats, Inc.) describe base-flow channels and sand seepage wetlands in a wetland complex at an old millpond setting along a highly urban section of Howards Branch. Recreated baseflow channels enhance changes in width with increased stormwater flow.
Recreating wetland-stream complexes in urban watersheds, Howards Branch, Baltimore, Maryland
Faith Fitzpatrick (U.S. Geological Survey), Ronald Bowen (Anne Arundel County Department of Public Works), Kevin Smith (Maryland Department of Natural Resources), and Keith Underwood (Underwood and Assoc.) talk about recreating an Atlantic White Cedar wetland at an old millpond setting along a highly urban section of Howards Branch.
Faith Fitzpatrick (U.S. Geological Survey), Ronald Bowen (Anne Arundel County Department of Public Works), Kevin Smith (Maryland Department of Natural Resources), and Keith Underwood (Underwood and Assoc.) talk about recreating an Atlantic White Cedar wetland at an old millpond setting along a highly urban section of Howards Branch.
Bobcat Movement Patterns in Urban Southern California
USGS biologists are using GPS technology to track carnivores as they cross the highways of urban Southern California.
USGS biologists are using GPS technology to track carnivores as they cross the highways of urban Southern California.
Pu`u `Ō`ō Crater Lava Lake Uplift
This Quicktime movie shows the recent uplift of the lava lake and crater floor in Pu‘u ‘Ō‘ō crater, captured by a thermal camera on the crater rim. The time-lapse movie spans July 9 to today, July 18, and is looped several times. The uplift was continuous between July 9 and 16, but had stalled by the 17th.
This Quicktime movie shows the recent uplift of the lava lake and crater floor in Pu‘u ‘Ō‘ō crater, captured by a thermal camera on the crater rim. The time-lapse movie spans July 9 to today, July 18, and is looped several times. The uplift was continuous between July 9 and 16, but had stalled by the 17th.
Grizzly bear rubbing on a bridge
Bears rub on many objects other than trees. This clip shows a grizzly bear rubbing on a wooden bridge on a decommissioned forest road. Barbed wire is attached to the wodden bridge beams and the bear rub tree next to the bridge to collect bear hair. This footage is still photos from a remote camera that have been stitched together in sequence.
Bears rub on many objects other than trees. This clip shows a grizzly bear rubbing on a wooden bridge on a decommissioned forest road. Barbed wire is attached to the wodden bridge beams and the bear rub tree next to the bridge to collect bear hair. This footage is still photos from a remote camera that have been stitched together in sequence.
PubTalk 6/2011 — Exploring California's Amazing Seafloor
--the visionary California Seafloor Mapping Program
by Sam Johnson, USGS Pacific Coastal & Marine Science Center
--the visionary California Seafloor Mapping Program
by Sam Johnson, USGS Pacific Coastal & Marine Science Center
USGS Data Grapher Tutorial - Introduction
This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.
This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.
USGS Data Grapher Tutorial - Setting Up Your First Graph
This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.
This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.
USGS Data Grapher Tutorial - Walkthrough Guide
This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.
This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.
Gas Pistons Within Drainhole Vent at Pu‘u ‘Ō‘ō
Between June 16 and June 23, 2006, the floor of the pit containing the "Drainhole" vent collapsed, revealing a small lava pond about 12 meters across. Gas pistons continued to occur but were much larger, as is evident when comparing this movie to the others with the same title.
Between June 16 and June 23, 2006, the floor of the pit containing the "Drainhole" vent collapsed, revealing a small lava pond about 12 meters across. Gas pistons continued to occur but were much larger, as is evident when comparing this movie to the others with the same title.
Unconventional Oil and Gas—Fueling the Future
The Nation relies on oil and gas to power its economy, and unconventional gas is the fastest-growing energy resource in the United States. The U.S. Geological Survey is the authoritative, unbiased source for assessments of the world's oil and gas endowment. Come learn how these exciting new energy resources may contribute to the energy mix.
The Nation relies on oil and gas to power its economy, and unconventional gas is the fastest-growing energy resource in the United States. The U.S. Geological Survey is the authoritative, unbiased source for assessments of the world's oil and gas endowment. Come learn how these exciting new energy resources may contribute to the energy mix.
Forecast Mekong: Visualizing Shared Waters
The Mekong is one of the world's great rivers cascading through six Asian countries from the Tibetan Plateau to the South China Sea, connecting China, Myanmar, Laos, Thailand, Cambodia and Vietnam. How one country uses or changes the waters of the Mekong upstream can have important implications for the health of the river and people downstream.
The Mekong is one of the world's great rivers cascading through six Asian countries from the Tibetan Plateau to the South China Sea, connecting China, Myanmar, Laos, Thailand, Cambodia and Vietnam. How one country uses or changes the waters of the Mekong upstream can have important implications for the health of the river and people downstream.
Emerging Contaminants
Today on the USGS CoreCast we explore what impact emerging contaminants have on the health and development of aquatic wildlife.
Today on the USGS CoreCast we explore what impact emerging contaminants have on the health and development of aquatic wildlife.