Paul Schuster, USGS, holding an ice core of Aufice (meaning over ice). Each layer represents a groundwater overflow event. Groundwater flows are predicted to increase with warming temperatures likely affecting the formation of Aufice in the Yukon River basin.
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Aufeis
Paul Schuster, USGS, holding an ice core of Aufice (meaning over ice). Each layer represents a groundwater overflow event. Groundwater flows are predicted to increase with warming temperatures likely affecting the formation of Aufice in the Yukon River basin.
Black-Crowned Night-heron (Nycticorax nycticorax)
Black-crowned night-heron on the grassy turf of a wetland.
Black-crowned night-heron on the grassy turf of a wetland.
Black-Necked Stilt (Himantopus mexicanus)
Black-necked stilt (Hawaiian stilit).
Black-necked stilt (Hawaiian stilit).
Black-Necked Stilt (Himantopus mexicanus)
Black-necked Stilt (Hawaiian stilit).
Black-necked Stilt (Hawaiian stilit).
Black-Necked Stilt (Himantopus mexicanus)
Two Black-necked stilts wading in a wetland.
Two Black-necked stilts wading in a wetland.
Hawaiian Coot (Fulica alai)
Hawaiian Coot swimming in a wetland marsh. Listed as an endangered species in 1970. Dark gray with a white bill and frontal shield that varies from white, pale buff, and pale blue to deep red.
Hawaiian Coot swimming in a wetland marsh. Listed as an endangered species in 1970. Dark gray with a white bill and frontal shield that varies from white, pale buff, and pale blue to deep red.
Human-Health Science in the US-Mexico Borderlands
Children playing in a makeshift swimming pool at a colonia in Aqua Prieta, Sonora, Mexico. Scientists examine the growing health concerns related to the fate of hazardous wastes and contaminants introduced into the air, water, and soils of the Borderlands region, as well as pathogens carried by wildlife, domesticated animals, and humans.
Children playing in a makeshift swimming pool at a colonia in Aqua Prieta, Sonora, Mexico. Scientists examine the growing health concerns related to the fate of hazardous wastes and contaminants introduced into the air, water, and soils of the Borderlands region, as well as pathogens carried by wildlife, domesticated animals, and humans.
Landsat 7 image showing the area near Ciudad Obregón, Mexico
Example of the Landsat 7 ETM+ Collection 2 level-1 product. This Landsat 7 image was acquired on January 1, 2003 near Ciudad Obregón, Mexico and is shown as a natural color composite using the red, green, and blue bands (bands 3,2,1).
Example of the Landsat 7 ETM+ Collection 2 level-1 product. This Landsat 7 image was acquired on January 1, 2003 near Ciudad Obregón, Mexico and is shown as a natural color composite using the red, green, and blue bands (bands 3,2,1).
Nene (Branta sandvicensis)
Nene (Hawaiian goose). This species is listed as Vulnerable by IUCN.
Nene (Hawaiian goose). This species is listed as Vulnerable by IUCN.
Nene (Branta sandvicensis)
Nene (Hawaiian goose). This species is considered vulnerable by the IUCN.
Nene (Hawaiian goose). This species is considered vulnerable by the IUCN.
Nene (Branta sandvicensis)
Nene (Hawaiian goose). This species is listed as Vulnerable by the IUCN.
Nene (Hawaiian goose). This species is listed as Vulnerable by the IUCN.
Nene (Branta sandvicensis)
Nene (Hawaiian goose). This species is listed as Vulnerable by the IUCN.
Nene (Hawaiian goose). This species is listed as Vulnerable by the IUCN.
Various Karst Features Along Peace River, Fl
Whirlpool indicating loss of river flow to the underlying Fricano Fracture.
Whirlpool indicating loss of river flow to the underlying Fricano Fracture.
Various Karst Features Along Peace River, Fl
Catacombs No. 1, with approximately 4 cubic feet per second flowing through the karst window.
Catacombs No. 1, with approximately 4 cubic feet per second flowing through the karst window.
Various Karst Features Along Peace River, Fl
A dye study showing the underground flow near Catacomb No. 1.
A dye study showing the underground flow near Catacomb No. 1.
Atoll development
Coral atolls develop from reefs fringing volcanic islands. As first hypothesized by Charles Darwin, and confirmed by ocean drilling done by British scientists a century ago, reefs fringing volcanic islands build vertically to sea level, forming steep-walled barrier reefs.
Coral atolls develop from reefs fringing volcanic islands. As first hypothesized by Charles Darwin, and confirmed by ocean drilling done by British scientists a century ago, reefs fringing volcanic islands build vertically to sea level, forming steep-walled barrier reefs.
Bathymetric map of Yellowstone Lake
Bathymetric map of Yellowstone Lake showing hydrothermal features in the north part of the lake, including Elliott's Crater, Mary Bay, and Deep Hole. Colors correspond to lake depth, with cooler colors indicating greater depths.
Bathymetric map of Yellowstone Lake showing hydrothermal features in the north part of the lake, including Elliott's Crater, Mary Bay, and Deep Hole. Colors correspond to lake depth, with cooler colors indicating greater depths.
Black Buttes and Mount Baker in WA.
Black Buttes stratovolcano and south side of ice-mantled Mount Baker. Aerial view northeastward. For Black Buttes, strata of the two highest crags (Lincoln Peak, left, and Colfax Peak) display opposing 308 dips that frame the gutted edifice.
Black Buttes stratovolcano and south side of ice-mantled Mount Baker. Aerial view northeastward. For Black Buttes, strata of the two highest crags (Lincoln Peak, left, and Colfax Peak) display opposing 308 dips that frame the gutted edifice.
Black-Crowned Night-Heron (Nycticorax nycticorax)
Black-crowned night-heron on the grassy turf of a wetland.
Black-crowned night-heron on the grassy turf of a wetland.
Black-Necked Stilt (Himantopus mexicanus)
Two Black-necked stilts wading in a wetland.
Two Black-necked stilts wading in a wetland.
Example output from VolatileCalc
Isobars (gray) represent locus of values for dissolved H2O andCO2 in rhyolitic melt in equilibrium with H2O–CO2 vapor at 800°C and selected pressures. Isopleths represent locus of rhyolitic melt compositions in equilibrium with the given vapor compositions (20, 50 and80 mol% H2
Isobars (gray) represent locus of values for dissolved H2O andCO2 in rhyolitic melt in equilibrium with H2O–CO2 vapor at 800°C and selected pressures. Isopleths represent locus of rhyolitic melt compositions in equilibrium with the given vapor compositions (20, 50 and80 mol% H2