Images

This photo shows one of 8 storm sensors deployed in Pennsylvania to monitor the potential effects Hurricane Florence could have on already high rivers across the state. Photo by Matthew Gyves, USGS. 

Well CH 10 is part of a Pennsylvania groundwater quality monitoring network and is in Chester County, Pennsylvania.

Cameron Ensor (pictured) and Nickolas Grim of the Pennsylvania Water Science Center cut through 7+ inch thick ice in order to make a discharge measurement at 01571184 Mountain Creek near Pine Grove Furnace, Pennsylvania on January 3, 2018. This gage is part of the USGS Federal Priority Streamgage Network. The temperature during their visit was -4F.

In cooperation with the Pennsylvania Department of Environmental Quality, monitoring well WY197, Wyoming County, Pennsylvania is sampled annually to characterize the ambient groundwater quality throughout the Commonwealth.

Cracked mud flats in retention basin, near Jericho, West Bank, showing raindrop impressions

The Kafrein Dam captures runoff from Jordan River side valley wadis, near the Dead Sea, Jordan. USGS hosted a field trip that included a stop at the dam in February, 2017 during a regional workshop on aquifer storage & recovery in the Middle East and North Africa (MENA) region, in cooperation with the U.S. Agency for International Development. 

Photograph of alluvial fan deposits in a gravel pit in the Jordan River Valley, Jordan. 

Snow dapples the banks on Brodhead Creek near Analomink, PA. This stream reach, and reaches on other streams were surveyed as part of a geomorphic dataset to determine channel dimensions and allow new estimates of bankfull discharge and channel dimensions at U.S.

USGS New Jersey Water Science Center Hydrographers on the Susquehanna River collect water quality samples.

Brian Selck, a USGS National Association of Geoscience Teachers intern, collects a water level measurement from a domestic well at a site north of Jersey Shore in Lycoming County, Pennsylvania, June 2014.

Sediment-laden water from a tributary, where development is probably taking place, entering the clearer Chattahoochee River near Atlanta, Georgia. If preventative measures are not taken on construction sites where runoff flows into a nearby stream or creek, results like this can happen.

Photo of low-flow conditions in a wadi (stream) along the Jordan Rift Valley. Springflow generated by groundwater discharge at higher elevations eventually flows into the hypersaline Dead Sea. 

Large groundwater withdrawals in the Azraq Oasis area, Jordan, have contributed to declining water levels in wells. This map shows the withdrawal footprint and observed water-level trends (labeled triangular symbols, from Goode et al. 2013).

The USGS gages the St. John River at Fort Kent, Maine at Station 01014000. A major flood in 2008 was the highest flow measured at this station, based on record going back to the 1920s. This photo shows the International Bridge in Ft. Kent, right at the water surface of the flooded river.