Images

Map of the Delaware River Basin

Example of SSEBop Eta product: Spatial distribution of (A ) annual evapotranspiration (millimeters per year) and (B ) evapotranspiration (millimeters per day) on the day of satellite overpass (July 6, 2013) in a selected part of the southern Willcox irrigation district in Arizona. Modified from G.B. Senay, USGS, written commun., Oct. 26, 2015.

Estimates of groundwater discharge to streams (baseflow) at 229 sites in the Upper Colorado River Basin. Groundwater discharge to streams contributes an average of 48 percent of total streamflow in the UCRB.

Public Supply Water Withdrawls, Transfers, and Use by Source, Subbasin,and Subwatershed in the Delaware River Basin, 2010

Example output from REFDSS showing a “Flow Versus Habitat Chart”, which is a means of visualizing the habitat area as a function of streamflow (discharge).

Colorado Basin Focus Area Study Map

Colorado Basin Focus Area Study carousel

Public-supply wells pump higher volumes of water than domestic-supply wells.  This photo appears in Circular 1352, Water Quality in the Glacial Aquifer System, Northern United States, one of a series of circulars on groundwater quality in the

USGS streamgage at Snake River, WY (03011000)

Photo of a domestic public supply well from the USGS Floridian Circular 1355 "Water Quality in the Upper Floridian Aquifer and Overlying Surficial Aquifers, Southeastern United States, 1993-2010."

USGS employee taking a measurement on a domestic groundwater well. Photo from the USGS circular 1360 "Water Quality in Pricipal Aquifers of the United States, 1991-2010."

Photo of a public supply well from the USGS Floridian Circular 1355 "Water Quality in the Upper Floridian Aquifer and Overlying Surficial Aquifers, Southeastern United States, 1993-2010."

Noxious Algal Bloom in an estuary along the Massachusetts coast. Photo from the USGS circular 1360 "Water Quality in Pricipal Aquifers of the United States, 1991-2010."

Sedimentary rock. Photo from the USGS circular 1360 "Water Quality in Pricipal Aquifers of the United States, 1991-2010."

High level of selenium in fish, fisherman notice sign posted at Sweitzer Lake State Park in the lower Gunnison River Basin in western Colorado. Photo from the USGS circular 1360 "Water Quality in Pricipal Aquifers of the United States, 1991-2010."

A scuba diver navigates his field site underwater.

A site operator completes their weekly site visit at Loch Vale in Rocky Mountain National Park. The USGS-operated site (CO98) is part of the National Atmospheric Deposition Program (NADP) National Trends Network.

Photograph of the Willamette River passing through downtown Portland, OR.

Hydrotech lowering "fish" off of a bridge for storm sampling.

"Fish" ready to be lowered from bridge for storm sampling.

Storm sampling in action.