The first priority of any eruption is to assess current status and what might happen next. To accomplish this, Mount St. Helens became one of most heavily monitored volcanoes. At the start of the 2004–08 eruption, 13 permanent seismic stations operated within about 12 miles of Mount St. Helens.
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Mount St. Helens: Instrumentation and Dome Growth, April-May 2006
The first priority of any eruption is to assess current status and what might happen next. To accomplish this, Mount St. Helens became one of most heavily monitored volcanoes. At the start of the 2004–08 eruption, 13 permanent seismic stations operated within about 12 miles of Mount St. Helens.
Mount St. Helens: Instrumentation and Dome Growth, May-Sept 2006
Throughout the eruption, scientists installed monitoring stations to track volcanic activity, deployed temporary monitoring ""spiders"", monitored the temperature of lava spines and created time-lapse of dome growth. During the 3+ years of the eruption, lava piled up to form a new dome 460 m (1,500 ft) high.
Throughout the eruption, scientists installed monitoring stations to track volcanic activity, deployed temporary monitoring ""spiders"", monitored the temperature of lava spines and created time-lapse of dome growth. During the 3+ years of the eruption, lava piled up to form a new dome 460 m (1,500 ft) high.
Rainforest Vegetation and Waterfall
Tree ferns and a waterfall visible in the background in a mountainous rainforest garden.
Tree ferns and a waterfall visible in the background in a mountainous rainforest garden.
Rainforest Vegetation and Waterfall
Tropical rainforest vegetation including tree ferns, epitphytes, vines, bromeliads, and a waterfall in a mountainous rainforest garden.
Tropical rainforest vegetation including tree ferns, epitphytes, vines, bromeliads, and a waterfall in a mountainous rainforest garden.
Rainforest Vegetation and Waterfall
Tree ferns and profuse tropical vegetation framing a mountainside waterfall, visible in the background, in a rainforest garden.
Tree ferns and profuse tropical vegetation framing a mountainside waterfall, visible in the background, in a rainforest garden.
Rainforest Vegetation and Waterfall
Tree ferns, ephiphytes, bromeliads, banana plants, and other rainforest vegetation framing a waterfall, visible in the background, in the tropical rainforest mountains.
Tree ferns, ephiphytes, bromeliads, banana plants, and other rainforest vegetation framing a waterfall, visible in the background, in the tropical rainforest mountains.
Sediment core from lake for PAH analysis
Sediment cores from lakes and reservoirs can be used to reconstruct contaminant histories in watersheds. Sediment-core analyses indicate that concentrations of PAHs in many U.S. urban lakes are increasing, and multiple lines of evidence indicate that the source of the PAHs in coal-tar-based pavement sealants.
Sediment cores from lakes and reservoirs can be used to reconstruct contaminant histories in watersheds. Sediment-core analyses indicate that concentrations of PAHs in many U.S. urban lakes are increasing, and multiple lines of evidence indicate that the source of the PAHs in coal-tar-based pavement sealants.
Lava Tube Bubble Bursts on the East Lae‘apuki Lava Delta
(May 29, 2006, 10:45:46 to 19:30:49) The interaction of sea water and lava creates a volatile situation (Mattox and Mangan, 1997). When this happens inside the confined space of a lava tube, or a narrow, water-filled crack, the results can be impressive.
(May 29, 2006, 10:45:46 to 19:30:49) The interaction of sea water and lava creates a volatile situation (Mattox and Mangan, 1997). When this happens inside the confined space of a lava tube, or a narrow, water-filled crack, the results can be impressive.
Pouring dust from sealcoated pavement into sample jar
Dust was collected from sealcoated pavements across the U.S. Concentrations of polycyclic aromatic hydrocarbons (PAHs) in dust from sealed pavement in the East, where coal-tar-based products are used, was about 1,000 times higher than in dust from sealed pavement in the West, where asphalt-based products are used.
Dust was collected from sealcoated pavements across the U.S. Concentrations of polycyclic aromatic hydrocarbons (PAHs) in dust from sealed pavement in the East, where coal-tar-based products are used, was about 1,000 times higher than in dust from sealed pavement in the West, where asphalt-based products are used.
Bubble Bursts at East Lae'apuki Ocean Entry (May 29, 2006)
The interaction of sea water and lava creates a volatile situation. When this happens inside the confined space of a lava tube, or a narrow, water-filled crack, the results can be impressive. In this video, which was made from time-lapse images cropped to focus on the activity, bursting lava bubbles put on quite a show for several hours.
The interaction of sea water and lava creates a volatile situation. When this happens inside the confined space of a lava tube, or a narrow, water-filled crack, the results can be impressive. In this video, which was made from time-lapse images cropped to focus on the activity, bursting lava bubbles put on quite a show for several hours.
PubTalk 5/2006 — What Lies Beneath?
Concealed sedimentary basins and hidden oil under Silicon Valley
By Richard G. Stanley, Geologist
Concealed sedimentary basins and hidden oil under Silicon Valley
By Richard G. Stanley, Geologist
Black-necked Stilt Female
Birds found in and around the Salton Sea, California.
Birds found in and around the Salton Sea, California.
Black-necked Stilt Nest
Birds found in and around the Salton Sea, California.
Birds found in and around the Salton Sea, California.
Cattle Egret
Birds found in and around the Salton Sea, California.
Birds found in and around the Salton Sea, California.
Eared Grebe Breeding Plumage
Birds found in and around the Salton Sea, California.
Birds found in and around the Salton Sea, California.
Great Blue Heron and Northern Pintail
Birds found in and around the Salton Sea, California.
Birds found in and around the Salton Sea, California.
Catching Ticks for Research
Ticks spread the widest variety of diseases that are harmful to humans, including Lyme disease. Here, a University of Tennessee scientist examines a drag cloth used to catch ticks in the field for research purposes.
Ticks spread the widest variety of diseases that are harmful to humans, including Lyme disease. Here, a University of Tennessee scientist examines a drag cloth used to catch ticks in the field for research purposes.
Active lava delta on SE coast of Kīlauea, Hawai‘i
Lava delta at East Lae‘apuki on the southeast coast of Kīlauea Volcano is about 17 hectares (43 acres). The delta extends about 400 m seaward from the sea cliff and is about 850 m long parallel to the shoreline. The steep sea cliff embayment resulted from collapses of earlier deltas; the collapses undermined and took away parts of the cliff.
Lava delta at East Lae‘apuki on the southeast coast of Kīlauea Volcano is about 17 hectares (43 acres). The delta extends about 400 m seaward from the sea cliff and is about 850 m long parallel to the shoreline. The steep sea cliff embayment resulted from collapses of earlier deltas; the collapses undermined and took away parts of the cliff.
Changes in streamflow along upper Peace River, Fl
Dry riverbed downstream from Dover Sink Distributary-- May 19, 2006.
Dry riverbed downstream from Dover Sink Distributary-- May 19, 2006.
Horseshoe Crabs at Delaware Bay
Horseshoe crabs congregate annually at Delaware Bay.
Horseshoe crabs congregate annually at Delaware Bay.