Multimedia Gallery

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.

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.

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.

2" aluminum pipe, structural pipe fittings, and square tubing are utilized to create a dock servicable uplooking ADVM mount.

A 4" aluminum I-beam is used allow an ADVM to be raised and lowered on a stainless steel sled.  The I-beam also serves as a pedestal mount for electronics housing.

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

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.

Tuckerman Ravine White Mountains New Hampshire in winter.

Several instruments visible on board the research vessel JOIDES Resolution. Photo taken from the ship bridge roof. USGS logo visible on one of the pieces of equipment. Research cruises taken on the JOIDES Resolution are often interdisciplinary and collaborative across many universities, scientific agencies, and other research institutions.

The Yukon River near St. Mary’s, Alaska.

Earl Alstrom and Carol Hasburgh taking water quality samples near St. Mary’s, Alaska.

A graphic overlay of the Yukon River Basin in Alaska as compared to the size of the continental United States. Credit: Laris Karklis (public domain) 

Lake profiler deployed on Detroit Lake, Oregon, to study harmful algal blooms in the reservoir.

Head of the Meadow Beach, Cape Cod National Seashore, Massachusetts

Head of the Meadow Beach, Cape Cod National Seashore, Massachusetts

USGS scientists Adam Baldwin and Chris Gazoorian (USGS New York Water Science Center) point out the newly installed fixed-mount thermal infrared camera installed on the USGS Platte Kill at Dunraven NY streamgage in the Neversink River watershed. The camera is positioned to

Example of a camera system that will be tested to measure water level and surface velocity at the East Branch Brandywine Creek below Downingtown, PA. Photo Credit: USGS staff. This technology is part of the

USGS employee John Fulton prepares an unmanned aerial vehicle for take off. This particular drone referred to as "Q-Cam" measures surface water stream velocity. Combined with a second drone, non-contact discharge measurements can be made. This technology is part of the

USGS scientists collect data from the surfaced Ecomapper after a mission to understand stream mixing near the Benjamin Franklin Bridge on the Delaware River in Philadelphia, Penn. This technology is part of the

USGS scientists load and check the mission path onto an Ecomapper autonomous underwater vehicle (AUV), while other crew members collect vertical profile information using a multiple-parameter water-quality meter. This technology is part of the

Photo of a newly installed fixed-mount thermal infrared camera installed on the USGS Platte Kill at Dunraven NY streamgage in the Neversink River watershed. The camera is positioned to track focused groundwater discharge along a bedrock contact on the opposite side of the

Monthly Temperature Graph - Air Temperature Near Nuphar Lake

Weekly Temperature Graph - Air Temperature Near Nuphar Lake

Daily Temperature Graph - Air Temperature Near Nuphar Lake

Monthly Temperature Graph - Soil Temperature Near Vixen Geyser

Weekly Temperature Graph - Soil Temperature Near Vixen Geyser

Daily Temperature Graph - Soil Temperature Near Vixen Geyser

Monthly Temperature Graph - Tantalus Creek Upstream from the Reservoir

Weekly Temperature Graph - Tantalus Creek Upstream from the Reservoir

Daily Temperature Graph - Tantalus Creek Upstream from the Reservoir

Monthly Temperature Graph - Gray Lakes Tributary

Weekly Temperature Graph - Gray Lakes Tributary

Daily Temperature Graph - Gray Lakes Tributary

Monthly Temperature Graph - Porkchop Geyser

Weekly Temperature Graph - Porkchop Geyser

Daily Temperature Graph - Porkchop Geyser

Monthly Temperature Graph - Opalescent Spring

Weekly Temperature Graph - Opalescent Spring

Daily Temperature Graph - Opalescent Spring

Monthly Temperature Graph - Constant Geyser

Weekly Temperature Graph - Constant Geyser

Daily Temperature Graph - Constant Geyser

Monthly Temperature Graph - Echinus Geyser

Weekly Temperature Graph - Echinus Geyser

Daily Temperature Graph - Echinus Geyser

Monthly Temperature Graph - Steamboat Geyser

Weekly Temperature Graph - Steamboat Geyser