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Explore water-related photography, imagery, and illustrations.
The USGS National Integrated Water Availability Assessments (IWAAs) concept map shows daily estimates of natural water storage (water present on the landscape such as standing water, snowpack, soil water, and shallow groundwater) for approximately 110,00
The USGS National Integrated Water Availability Assessments (IWAAs) concept map shows daily estimates of natural water storage (water present on the landscape such as standing water, snowpack, soil water, and shallow groundwater) for approximately 110,00
This animation highlights the USGS Integrated Water Availability Assessments (IWAAs) Program’s evolving capacity to estimate water availability at a national scale by visualizing daily estimates of natural water storage (water present on the landscape such as standing water, snowpack, soil water, and shallow groundwater) for approximately 110,000 regions across the
This animation highlights the USGS Integrated Water Availability Assessments (IWAAs) Program’s evolving capacity to estimate water availability at a national scale by visualizing daily estimates of natural water storage (water present on the landscape such as standing water, snowpack, soil water, and shallow groundwater) for approximately 110,000 regions across the
Kentucky mount constructed from Speed Rail. This mount can be used to deploy Rio Grande, RiverPro, RioPro, and RiverSurveyor ADCPs.
Kentucky mount constructed from Speed Rail. This mount can be used to deploy Rio Grande, RiverPro, RioPro, and RiverSurveyor ADCPs.
Kentucky mount constructed from Speed Rail. This mount can be used to deploy Rio Grande, RiverPro, RioPro, and RiverSurveyor ADCPs.
Kentucky mount constructed from Speed Rail. This mount can be used to deploy Rio Grande, RiverPro, RioPro, and RiverSurveyor ADCPs.
This is Hydrographer Mark Spindler performing a winter time discharge measurement at USGS stream gage 09304800 White River Below Meeker, CO. Discrete water quality samples were also collected.
This is Hydrographer Mark Spindler performing a winter time discharge measurement at USGS stream gage 09304800 White River Below Meeker, CO. Discrete water quality samples were also collected.
Two USGS employees (Bart Dengel, and Joseph Crissup) conducting an under-ice ADCP discharge measurement near USGS stream gage station 15214000.
Two USGS employees (Bart Dengel, and Joseph Crissup) conducting an under-ice ADCP discharge measurement near USGS stream gage station 15214000.
Hydrologic Technician Sharon Mulready checks equipment on electrical power tower and site 372750122012701 Coyote Creek near Alviso Slough. The tidal gage is located at the confluence of Coyote Creek and Alviso Slough, and is accessible only by boat. The estuary is fed by the Sacramento and San Joaquin Rivers, and various tributaries in the Central Valley.
Hydrologic Technician Sharon Mulready checks equipment on electrical power tower and site 372750122012701 Coyote Creek near Alviso Slough. The tidal gage is located at the confluence of Coyote Creek and Alviso Slough, and is accessible only by boat. The estuary is fed by the Sacramento and San Joaquin Rivers, and various tributaries in the Central Valley.
Patrick Farrell makes a snowy, routine measurement at USGS stream gage 05383950 Root River near Pilot Mount, MN.
Patrick Farrell makes a snowy, routine measurement at USGS stream gage 05383950 Root River near Pilot Mount, MN.
Travis Gibson services the SonTek SW prior to making a discharge measurement on a chilly morning on the Great Salt Lake at USGS gage 410401112134801 Great Salt Lake Farmington Bay Outflow, UT.
Travis Gibson services the SonTek SW prior to making a discharge measurement on a chilly morning on the Great Salt Lake at USGS gage 410401112134801 Great Salt Lake Farmington Bay Outflow, UT.
Photo of the San Francisco Bay Estuary. This photo show wetlands and waterfowl.
Photo of the San Francisco Bay Estuary. This photo show wetlands and waterfowl.
Ever wondered about how groundwater observation wells are drilled? This photo provides a behind-the-scenes look as USGS drilled a groundwater well in California last month. This photo looks down over a mud tank and shakers, which are part of drilling operations.
Ever wondered about how groundwater observation wells are drilled? This photo provides a behind-the-scenes look as USGS drilled a groundwater well in California last month. This photo looks down over a mud tank and shakers, which are part of drilling operations.
Speed Rail and Kee Lite are two common manufacturers of aluminum structural pipe fittings, a popular material in which to construct index-velocity meter mounts.
Speed Rail and Kee Lite are two common manufacturers of aluminum structural pipe fittings, a popular material in which to construct index-velocity meter mounts.
A SonTek Argonaut mounting plate is fastened to 2" conduit using a structural pipe wall flange.
A SonTek Argonaut mounting plate is fastened to 2" conduit using a structural pipe wall flange.
Top view of beam orientation and sample volume of a sidelooking ADVM. The ADVM-measured velocity used to index mean velocity is usually the sample volume x-component of velocity.
Top view of beam orientation and sample volume of a sidelooking ADVM. The ADVM-measured velocity used to index mean velocity is usually the sample volume x-component of velocity.
Profilers measure velocities in uniformly-sized cells or bins along the acoustic beams (fig 1). By measuring velocities in a number of bins across a channel or vertically through the water column, these instruments produce horizontal or vertical water velocity profiles, hence the designation "profiler.
Profilers measure velocities in uniformly-sized cells or bins along the acoustic beams (fig 1). By measuring velocities in a number of bins across a channel or vertically through the water column, these instruments produce horizontal or vertical water velocity profiles, hence the designation "profiler.
The AVM measures the average water velocity along the acoustic path (VP, figure 1); then computes the "line velocity," the velocity component parallel with the average downstream flow line.
The AVM measures the average water velocity along the acoustic path (VP, figure 1); then computes the "line velocity," the velocity component parallel with the average downstream flow line.
The AVM-measured velocity used to index mean velocity can be the line velocity from one acoustic path or from multiple acoustic paths.
The AVM-measured velocity used to index mean velocity can be the line velocity from one acoustic path or from multiple acoustic paths.
A 4" aluminum I-beam is used allow an ADVM to be raised and lowered on a stainless steel sled.
A 4" aluminum I-beam is used allow an ADVM to be raised and lowered on a stainless steel sled.
Protective housing prevents damage to ADVM and allows for adjustment of heading and roll.
Protective housing prevents damage to ADVM and allows for adjustment of heading and roll.