Question: |
Is measuring water in a well like measuring a stream? |
Category: |
Science > Earth Sciences |
Keywords: |
same, difference, well, stream, river, monitor, measure, water level |
Type: |
other |
Rating: (0 ratings) Views: 377 Discussions: 0 In Watch Lists: 1 |
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Answer:
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No. In ground-water work the USGS puts a lot of effort in measuring the water levels in observation wells. Since water levels in aquifers can change (for a variety of reasons) we need to keep accurate records of these changes, and what factors affect them. Water levels in wells can definitely be affected by water withdrawals nearby -- and sometimes far away.
One way to keep a record of the water levels in a well is to place a float at the end of a wire and lower it into a well. The float will go up and down as the water in the well goes up and down. The other end of the wire is attached to a machine that has a pen-like instrument attached, and the pen point moves up and down according to the action of the float. A roll of paper slowly rolls past the pen, so a record of water level is plotted continuously on the paper. Sometimes we don't use paper -- we just log the changes straight into computer memory. Source: USGS
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Is measuring water in a well like measuring a stream?
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