Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS CMG InfoBank: Introduction to Groundwater

Skip navigational links
Loading
Dictionaries: Our Mapping Systems   The USGS and Science Education   USGS Fact Sheets   Topics   Keywords   Data Dictionary   Metadata Dictionary   Computer Terminology   Digital Formats  
InfoBank Terms: Activity ID   activity overview   crew   digital data   formal metadata   lines   metadata   NGDC   port stops   project/theme   region   ship   stations   time   virtual globe   year  
Data Types: bathymetry   biological   geochemical   gravity   ground penetrating radar   imaging   LIDAR   logs   magnetics   metering equipment   navigation   samples   seismic   total station   definitions disclaimer  
Data Formats: ARC coverage   E00   FGDC metadata   gridded/image   imaging   material   scattered/swath   Shapefile   vector/polygon  
Comment: 00:40 - 01:39 (00:59)
Source: Annenberg/CPB Resources - Earth Revealed - 21. Groundwater
Keywords: introduction, "James Sadd", water, groundwater, civilization, "fresh water", river, lake, "Earth's surface", dowser

Our transcription: Water has always been vital to civilization.
Cities and towns are usually built along an abundant supply of fresh water, such as a river and a lake.
But lakes and rivers can't supply all of the water that we need, so we've tapped into another source, groundwater.
The practice of water dowsing or finding underground water using a forked stick like this one has been going on for centuries.
Typically the dowser grasps the fork of a stick in each hand and points the other end skyward.
Then as he's walking along and happens to pass over a supply of underground water, the end of the stick or divining rod supposedly twists downward showing where to dig the well.
In reality, however, almost anywhere you point the stick, you'd eventually find water.
Although its depth varies considerably from place to place, water is present beneath the Earth's surface almost everywhere, even under the driest desert.

Geology School Keywords
Skip footer navigational links

Coastal and Marine Science Centers:  Pacific   St. Petersburg   Woods Hole  
InfoBank   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer  


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/19.01.01.html
Page Contact Information: InfoBank staff
Page Last Modified: Thu Oct 31 04:27:29 PDT 2013  (chd)