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Multimedia quality images
Mike Poland (USGS Hawaiian Volcano Observatory) shows Marcellin Kasereka (Goma Volcanological Survey, Democratic Republic of Congo, red jacket) how to adjust the leg of a tripod, while Patricia Ponce (Colombia Geological Survey, white hat) keeps the GPS antenna rod steady.
Chain of Craters Road, Hawaii Volcanoes National Park, Hawaii
Mike Poland (USGS Hawaiian Volcano Observatory) shows Marcellin Kasereka (Goma Volcanological Survey, Democratic Republic of Congo, red jacket) how to adjust the leg of a tripod, while Patricia Ponce (Colombia Geological Survey, white hat) keeps the GPS antenna rod steady.
Chain of Craters Road, Hawaii Volcanoes National Park, Hawaii
Photo of low-flow conditions in a wadi (stream) along the Jordan Rift Valley. Springflow generated by groundwater discharge at higher elevations eventually flows into the hypersaline Dead Sea.
Photo of low-flow conditions in a wadi (stream) along the Jordan Rift Valley. Springflow generated by groundwater discharge at higher elevations eventually flows into the hypersaline Dead Sea.
Large groundwater withdrawals in the Azraq Oasis area, Jordan, have contributed to declining water levels in wells. This map shows the withdrawal footprint and observed water-level trends (labeled triangular symbols, from Goode et al. 2013).
Large groundwater withdrawals in the Azraq Oasis area, Jordan, have contributed to declining water levels in wells. This map shows the withdrawal footprint and observed water-level trends (labeled triangular symbols, from Goode et al. 2013).
Projected image of world landforms and shaded relief topography and ocean bathymetry. (USGS)
Equirectangular projection of world land and ocean visible plus elevation data.
Projected image of world landforms and shaded relief topography and ocean bathymetry. (USGS)
Equirectangular projection of world land and ocean visible plus elevation data.
The clouds begin to thin over the Arctic Ocean Aug. 19, 2009.
The clouds begin to thin over the Arctic Ocean Aug. 19, 2009.
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia.
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia.
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia. A controlled blast as part of the mining process can be seen.
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia. A controlled blast as part of the mining process can be seen.
Geological Survey of Bangladesh collecting drill cores from 1340' to describe the deep aquifer. The USGS was asked by U.S.
Geological Survey of Bangladesh collecting drill cores from 1340' to describe the deep aquifer. The USGS was asked by U.S.
Groundwater level data are useful for managing aquifers used for water supply.
Groundwater level data are useful for managing aquifers used for water supply.
Village man showing signs of arsenic poisoning. Bangladesh
Village man showing signs of arsenic poisoning. Bangladesh