Water Resources

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. The drillers pump clean mud from the tank down the hole as they drill; this mud plays an important role in

Old custom made Kentucky-style mount on several different boats from Kentucky and Illinois deploying both Broadband (BB) and Rio Grande ADCPs. A pole can be fixed to the mount for deploying a GPS antenna located on top of the ADCP. The Kentucky-style mount constructed of Speed Rail is recommended for Rio Grande Workhorse, RiverPro, RioPro, and Sontek M9.

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.

Old custom made Kentucky-style mount on several different boats from Kentucky and Illinois deploying both Broadband (BB) and Rio Grande ADCPs. A pole can be fixed to the mount for deploying a GPS antenna located on top of the ADCP. The Kentucky-style mount constructed of Speed Rail is recommended for Rio Grande Workhorse, RiverPro, RioPro, and Sontek M9.

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.

The AVM-measured velocity used to index mean velocity can be the line velocity from one acoustic path or from multiple acoustic paths.

Missouri boat and mount.

Sontek M9 bridge deployment during flooding event

In this photo, USGS scientists Megan Haserodt (Hydrologist) and Jenelle Wempner (Student Intern) install a double ring infiltrometer along a recreated floodplain of Underwood Creek, a tributary to the Milwaukee River and Lake Michigan in Milwaukee, Wisconsin. The work is part of a larger study of how overbank flows and shallow groundwater in floodplains are connected for

A SonTek Argonaut mounting plate is fastened to 2" conduit using a structural pipe wall flange.