Images

Great Lakes tributaries are influenced by a multitude of stressors that may cause adverse ecological effects. The drawing represents 5 of the many significant chemicals effecting the ecosystems – Atrazine, Deet, BPA, Metolachlor, and 4-nonylphenol.

The Winnebago Pool is a chain of 4 shallow lakes in Wisconsin. The drawing relates real-time monitoring as well as sampling that took place on the lakes, the agricultural factors affecting the nutrient loading of the pool, and the importance of the Winnebago Pool fishery.

Durand streamgage mounted to bridge - looking downstream.

Hydrologic Technician using crane to collect a bedload sample from the bridge.

Map of dissolved oxygen and turbidity along the Milwaukee River.

These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science.

A hypothetical configuration of one of the two drained field sites, including a weather station for measuring climate data, a piezometer network for continuous water level measurements, soil moisture probes, and subsurface drainage flow. The third undrained field site will have a similar configuration, with the absence of subsurface drainage flow.

USGS Mercury research team collecting fish in Everglades National Park, Florida.

Panoramic view of USGS employees at a sampling site in Florida Everglades.

Scientists filtering water in the field at Everglades National Park, Florida.

USGS scientists filter water while in the field in the Florida Everglades, to detect mercury in environmental samples.

A photo of two wild turkeys walking against a wooded background with a dusting of snow in Wisconsin.

One wild turkey in Wisconsin

Danielle Szymkowski, USGS Contractor, collecting runoff sample below a the North Flume (USGS Station ID: 413611087201001) at the Gary City Hall rain garden, Indiana.

Randy Bayless (kneeling), USGS Research Hydrologist; Caleb Artz (standing in yellow), USGS Hydrologic Technician; and Danielle Szymkowski (standing in red), USGS Contractor; collect a groundwater sample from well CH-3 (USGS Station ID: 413611087201004) at the Gary City Hall rain garden.

Internal look at the MC-ICP-MS flight tube when magnet is removed.

Hydrologic Technician Amy Story repairing the data-transmission system at the Gary City Hall (Indiana) rain garden. The data-transmission system gathers data from several instruments and provides it in real time to the USGS web site.

Caleb Artz, USGS Hyrologic Technician, installing a heated precipitation gage (USGS station ID: 413611087201301) to measure rain and snow falling at the Gary City Hall rain garden. 

Puffin flying at Izembek National Wildlife Refuge Alaska with Frosty Peak in background.

Laura Hubbard of the USGS Upper Midwest Water Science Center takes water chemistry measures on the Alaska Peninsula as part of research to understand how long influenza viruses remain viable in the environment.  

Harbor seals poking their heads above water near shore in Russell Creek, Cold Bay, Alaska.

Longitudinal profiles of estuary depth (in meters) and water temperature in the Milwaukee River Estuary for the Milwaukee, Menomonee, and Kinnickinnic Rivers, as well as South Menomonee Canal (S. Canal) for August 30, 2019.