Great Lakes Restoration Initiative


The following photos and video presentations highlight the work of the USGS scientists in the Great Lakes Region. 

Filter Total Items: 7
A custom automated pathogen sampler and schematic illustration.
March 13, 2017

A custom automated pathogen sampler and schematic illustration.

A photograph of U.S. Geological Survey (USGS) custom automated pathogen sampler (top) and schematic illustrating the remote-unattended-automated pathogen sampler (bottom). Sample collection proceeds over the course of a runoff-event or low-flow period for up to a maximum of 5 days before a site visit by personnel is needed to collect the samples.

Grass carp larvae
December 31, 2019

Grass carp larvae

These images show grass carp larvae from the Maumee River. Characteristics of larval grass carp include overall length (left), skeletal muscle development (center) and presence of an eye spot that lacks pigmentation (right; pigment starting to develop on lower eye).

October 31, 2016

Monitoring Stormwater and Green Infrastructure (Gary City Hall, Ind.)

This time-lapse video shows the construction of the new Gary City Hall parking lot and rain garden in Gary, Indiana. The City of Gary is utilizing green infrastructure in their redevelopment projects in the hopes of reducing the amount stormwater runoff that enters their storm-sewer system and, eventually, Lake Michigan. This project included reducing the amount of

Photos show change in water clarity in agricultural runoff before and after a grassed waterway was installed
June 23, 2016

Edge-of-field: runoff before and after conservation practice install

These photos, taken before and after a grassed-waterway conservation practice was installed, show a change in the water clarity of agricultural runoff at an edge-of-field surface monitoring site in Wisconsin.

Photos of various edge-of-field monitoring sites, installation efforts, and runoff events across the Great Lakes basin.
June 23, 2016

Edge-of-field: sites and installations

These photos show various edge-of-field monitoring surface and subsurface monitoring sites, installation efforts, and runoff events across the Great Lakes basin.

May 10, 2016

Edge-of-Field Monitoring Using Depth-Integrated Sample Arm (DISA)

During edge-of-field monitoring of an agricultural field runoff event, a depth-integrated sample arm (DISA) is used to take a water sample at the same time a traditional water sample is taken from an intake located at the bottom of the H-flume exit, where the water is assumed to be completely mixed. The DISA is normally used to collect a continuous vertical sample

June 1, 2014

Time-Lapse of Edge-of-Field Event Near Fort Wayne, IN

Time-lapse photo of a rainfall-induced runoff event at an edge-of-field surface site near Fort Wayne, Indiana, on May 10-11, 2016. Edge-of-field monitoring is used to assess the quantity and quality of agricultural runoff and evaluate the effectiveness of conservation practices that aim to reduce nutrient loss. The runoff from an agricultural field is channeled through the