Measuring waterThis page of the Water Science Picture Gallery contains images of how water information is collected by the U.S. Geological Survey (USGS). There's a tremendous amount of field work that has to be done to develop and maintain a nationwide system of water-data sampling. 
Surface-water sampling methods and equipment:
Stream gage on a bridge
Making a stream-discharge measurement from a bridge
Taking a water sample from a bridge
Sampling a small stream
A quick way to measure high water
Sampling a lake bottom
Automatic stream sampler to collect water samples
Shocking fish to collect biological samplesLaboratory equipment and procedures:
pH meter to measure acidity |
Measuring water
Human's influence
Water use
Water Science home page
U.S. Department of the Interior | U.S. Geological Survey
URL: http://ga.water.usgs.gov/edu/picturesmw.html
Page Contact Information: Howard Perlman
Page Last Modified: Friday, 07-Nov-2008 15:45:08 EST
