Glaciers worldwide are shrinking in size
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Grinnell Glacier, Montana has been shrinking in size.
Glaciers worldwide are shrinking in size
Landscape near the northern Theodore Roosevelt National Park
Landscape near the northern Theodore Roosevelt National Park is characterized by the eroded Fort Union Formation.Photo is taken along Highway 85.
Landscape near the northern Theodore Roosevelt National Park is characterized by the eroded Fort Union Formation.Photo is taken along Highway 85.
Mount St. Helens 2004-2008 Eruption: A Volcano Reawakens
Mount St. Helens reawakened in late September 2004. Small magnitude earthquakes beneath the 1980-1986 lava dome increased in frequency and size, and a growing welt formed on the southeast margin of the previous lava dome and nearby portions of Crater Glacier.
Mount St. Helens reawakened in late September 2004. Small magnitude earthquakes beneath the 1980-1986 lava dome increased in frequency and size, and a growing welt formed on the southeast margin of the previous lava dome and nearby portions of Crater Glacier.
Salt Marsh Estuary
Landscape view of a salt marsh in Florida's Merritt Island National Wildlife Refuge near the Cape Kennedy space center.
Landscape view of a salt marsh in Florida's Merritt Island National Wildlife Refuge near the Cape Kennedy space center.
Seafloor map of Puerto Rico Trench
A NOAA image of the bathymetry north of Puerto Rico. Two ancient submarine landslides are visible as head scarps (labeled Loiza and Arecibo Amphitheaters). Seafloor fissures are indicated by black arrows, and dashed lines outline debris flows from past failures. Map annotated by Uri ten Brink, USGS
A NOAA image of the bathymetry north of Puerto Rico. Two ancient submarine landslides are visible as head scarps (labeled Loiza and Arecibo Amphitheaters). Seafloor fissures are indicated by black arrows, and dashed lines outline debris flows from past failures. Map annotated by Uri ten Brink, USGS
Shaded relief image of Quicks Hole, Massachusetts
Shaded relief image of Quicks Hole, Massachusetts
Shaded relief image of Quicks Hole, Massachusetts
Shaded relief image of Red Brook Harbor
Shaded relief image of Red Brook, Massachusetts Harbor
Shaded relief image of Red Brook, Massachusetts Harbor
Suspended-sediment concentrations
Contour plots of SSC for the spatial surveys during trade-wind conditions on the reef flat. (a) SSC from the low tide survey. The highest SSC (60e70 mg/l) were located in a nearshore band, and east of the fish ponds and Kaunakakai wharf. (b) SSC from the high tide surveys.
Contour plots of SSC for the spatial surveys during trade-wind conditions on the reef flat. (a) SSC from the low tide survey. The highest SSC (60e70 mg/l) were located in a nearshore band, and east of the fish ponds and Kaunakakai wharf. (b) SSC from the high tide surveys.
The white stone outcrop is the Tongue River Formation
The white stone outcrop is the Tongue River Formation. Photo taken north of Lame Deer, Montana.
The white stone outcrop is the Tongue River Formation. Photo taken north of Lame Deer, Montana.
Tree ring dating
Tamarisk stem cross-section cut 2.8 m below the ground surface showing how sediment deposition is dated using tree rings. Following initial burial of 68 cm in 1969, ring-width decreased, vessel size increased, and annual transitions became less distinct. After a second burial by 41 cm in 1972, annual transitions became indistinguishable.
Tamarisk stem cross-section cut 2.8 m below the ground surface showing how sediment deposition is dated using tree rings. Following initial burial of 68 cm in 1969, ring-width decreased, vessel size increased, and annual transitions became less distinct. After a second burial by 41 cm in 1972, annual transitions became indistinguishable.
Watford water depot near the center of the Williston structural basin
Watford water depot. Water depots supply water for hydraulically-fractured oil and gas wells. The Watford City water depot is located near the center of the Williston structural basin
Watford water depot. Water depots supply water for hydraulically-fractured oil and gas wells. The Watford City water depot is located near the center of the Williston structural basin
Wetland water depot south of Watford City, North Dakota
Wetland water depot. Some North Dakota ranchers have converted their wetland water rights for industrial use as water depots. Photo taken south of Watford City, North Dakota
Wetland water depot. Some North Dakota ranchers have converted their wetland water rights for industrial use as water depots. Photo taken south of Watford City, North Dakota
White Ibises (Eudocimus albus) and Roseate Spoonbills (Platalea ajaja)
A group of ibises and roseate spoonbills feeding in the marsh and shallow waters.
A group of ibises and roseate spoonbills feeding in the marsh and shallow waters.
Mount Baker and Bellingham, WA on Bellingham Bay.
Mount Baker and Bellingham, Washington on Bellingham Bay.
Mount Baker and Bellingham, Washington on Bellingham Bay.
ATV with GPS
Jeff Hansen on an all-terrain vehicle (ATV) at Ocean Beach, San Francisco, in 2006. The ATV is equipped with instrumentation which records beach topography.
Jeff Hansen on an all-terrain vehicle (ATV) at Ocean Beach, San Francisco, in 2006. The ATV is equipped with instrumentation which records beach topography.
PubTalk 12/2006 - Mojave
Title: The Mojave National Preserve: Geology and Water Shape Desert Plant Communities
Title: The Mojave National Preserve: Geology and Water Shape Desert Plant Communities
PubTalk 12/2006 — The Mojave National Preserve
Geology and Water Shape Desert Plant Communities
by David Miller, Geologist and John Nimmo, Soil Hydrologist
Geology and Water Shape Desert Plant Communities
by David Miller, Geologist and John Nimmo, Soil Hydrologist
San Bernardino, Cone Camp Multiple-depth Monitoring Well Sites
Looking east towards USGS Site ID: 340541117074401-6, Site Name: 001S002W07Q001S-6S, Local name: SBCC 1-6 in San Bernardino County, California.
Looking east towards USGS Site ID: 340541117074401-6, Site Name: 001S002W07Q001S-6S, Local name: SBCC 1-6 in San Bernardino County, California.
Stingless bees on a bird of paradise flower
Stingless bees appear to chew holes in the base of a bird of paradise flower in a cultivated garden.
Stingless bees appear to chew holes in the base of a bird of paradise flower in a cultivated garden.
Mount Adams western profile as seen from Mount St. Helens.
Mount Adams western profile as seen from Mount St. Helens.
Mount Adams western profile as seen from Mount St. Helens.
Stalactite in Luray Caverns
A stalactite as seen from directly underneath in Luray Caverns, Virginia.
A stalactite as seen from directly underneath in Luray Caverns, Virginia.