Growth and disintegration of lava spines continued at Mount St. Helens through the first 8 months of 2005. Rather than building a single dome-shaped structure, the new dome grew initially as a series of recumbent, smoothly surfaced spines that extruded to lengths of almost 500 m.
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Mount St. Helens: Instrumentation and Dome Growth, Feb - Mar 15, 2005
Growth and disintegration of lava spines continued at Mount St. Helens through the first 8 months of 2005. Rather than building a single dome-shaped structure, the new dome grew initially as a series of recumbent, smoothly surfaced spines that extruded to lengths of almost 500 m.
PubTalk — When Rocks Fall and the Land Slides
Hear why California makes an ideal environment for landslides North face
By Gerald F. Wieczorek, Geological Engineer, and
Raymond C. Wilson, Landslide Geologist
Hear why California makes an ideal environment for landslides North face
By Gerald F. Wieczorek, Geological Engineer, and
Raymond C. Wilson, Landslide Geologist
Colorado River
The Colorado River passing through the Grand Canyon in Arizona.
The Colorado River passing through the Grand Canyon in Arizona.
Installation of a gaging station at the Smith River near Eden, Montana
Installation of a gaging station at the Smith River near Eden, Montana
Installation of a gaging station at the Smith River near Eden, Montana
Lava Fountaining from the MLK Vent
(February 9, 2005, 18:00:30 to February 10, 2005, 08:00:31) On February 9, 2005, an increase in lava discharge from Pu‘u ‘Ō‘ō, part of a longer term increase in effusion rate (Miklius and others, 2006), resulted in vigorous spattering and low fountaining from the MLK vent.
(February 9, 2005, 18:00:30 to February 10, 2005, 08:00:31) On February 9, 2005, an increase in lava discharge from Pu‘u ‘Ō‘ō, part of a longer term increase in effusion rate (Miklius and others, 2006), resulted in vigorous spattering and low fountaining from the MLK vent.
Weighing a white sturgeon
Weighing a juvenile white sturgeon. Columbia River, bottom trawl for yoy indexing.
Weighing a juvenile white sturgeon. Columbia River, bottom trawl for yoy indexing.
White Sturgeon (Acipenser transmontanus)
Juvenile white sturgeon held by human hand. Columbia River, bottom trawl for yoy indexing.
Juvenile white sturgeon held by human hand. Columbia River, bottom trawl for yoy indexing.
Burning Hillslope Above Turnpike
This hillslope above the turnpike burns every few years. The location is 18º3'N, 66º13'W and the elevation is 255 m.
This hillslope above the turnpike burns every few years. The location is 18º3'N, 66º13'W and the elevation is 255 m.
Burning Hillslope Above Turnpike
This hillslope above the turnpike burns every few years. The location is 18º3'N, 66º13'W and the elevation is 255 m.
This hillslope above the turnpike burns every few years. The location is 18º3'N, 66º13'W and the elevation is 255 m.
Burning Hillslope Above Turnpike
This hillslope above the turnpike is subject to fires every few years. The location is 18º3'N, 66º13'W and the elevation is 255 m.
This hillslope above the turnpike is subject to fires every few years. The location is 18º3'N, 66º13'W and the elevation is 255 m.
Mount Bachelor viewed from South Sister, OR.
Mount Bachelor viewed from South Sister, Oregon.
Mount Bachelor viewed from South Sister, Oregon.
USGS Scientist Set Mistnets for West Nile Virus Monitoring
USGS scientists capture and release wild birds while monitoring for West Nile.
USGS scientists capture and release wild birds while monitoring for West Nile.
Devils Lake
Metrologic instrumentation measures weather parameters on Devils Lake, near Devils Lake, ND.
Metrologic instrumentation measures weather parameters on Devils Lake, near Devils Lake, ND.
Devils Lake
Ice breaking up and metrologic instrumentation measures weather parameters on Devils Lake, near Devils Lake, ND.
Ice breaking up and metrologic instrumentation measures weather parameters on Devils Lake, near Devils Lake, ND.
Researchers surgically implanting transmitter, white sturgeon
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon
Researchers preparing to surgically implant transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers preparing to surgically implant transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Under The Ice at Libby Brook
In February 2005 a visit to a USGS station on Libby Brook near Northfield, Maine revealed a gap between the water level and a layer of ice above. Cold temperatures after a rain event caused the ice layer to form and as water levels dropped the ice layer remained.
In February 2005 a visit to a USGS station on Libby Brook near Northfield, Maine revealed a gap between the water level and a layer of ice above. Cold temperatures after a rain event caused the ice layer to form and as water levels dropped the ice layer remained.
Mount St. Helens: Instrumentation and Dome Growth, January 2005
Within the crater of Mount St. Helens, the 2004–2008 lava dome grew by continuous extrusion of degassed lava spines. To track growth and anticipate what the volcano might do next, scientists installed monitoring equipment, including a camera and gas sensing instruments, and made helicopter overflights to collect the temperature (FLIR) of the growing dome.
Within the crater of Mount St. Helens, the 2004–2008 lava dome grew by continuous extrusion of degassed lava spines. To track growth and anticipate what the volcano might do next, scientists installed monitoring equipment, including a camera and gas sensing instruments, and made helicopter overflights to collect the temperature (FLIR) of the growing dome.
Aerial view, Mount St. Helens' crater and dome, as seen from NE.
Aerial view, Mount St. Helens' crater and dome, as seen from the northeast.
Aerial view, Mount St. Helens' crater and dome, as seen from the northeast.
Aerial view, Mount St. Helens' crater and dome, as seen from NE. No...
Aerial view, Mount St. Helens' crater and dome, as seen from the northeast. Note dusting of ash on Mount St. Helens' flank, left near rim.
Aerial view, Mount St. Helens' crater and dome, as seen from the northeast. Note dusting of ash on Mount St. Helens' flank, left near rim.