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Permalink Reply by H Bale on June 17, 2013 at 11:10am

Maybe this??

The same principle is used in searching for oil on land. A sonar pulse is sent into the ground. Echoes come back from the different layers of soil and rock and tell geologists what kinds of soils and rocks are present. This helps them identify areas for drilling that are most likely to contain oil or gas. This subterranean mapping is called seismic exploration.

http://teacher.scholastic.com/activities/explorations/bats/librarya...

Pretty basic explanation, may be entirely wrong. Possibly one of the site "resident authorities" can elaborate, or point you in a totally different direction.

What drew me to this idea was the "dipping". Same thing a helicopter does when they are trying to locate a submarine under water from an aerial platform using sonar

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Permalink Reply by Jim Litwinowicz on June 17, 2013 at 11:22am

More likely it is dropping off materials used for siesmic work. It is much faster and less intrusive to drop them by air instead of trucking them across farm fields and through woods.  They dropped them here in Lawrence Co, Pa in April. They had three or four large orange bags on a fifty foot cable and dropped them off one at a time.  Then they picked them up two weeks ago after all the siesmic was done.

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Permalink Reply by J Louis Copeland on June 17, 2013 at 11:26am

Exactly, just after I started this discussion, I heard a helicopter and looked out the window to see it lowering a large orange bag into my pasture-mystery solved Thanks

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Permalink Reply by Jason Grecco on June 17, 2013 at 3:21pm

Global dropping sensors for seismic studies....Rumor has it that they will shoot off the area east of Cadiz in the next 5-7 days....

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Permalink Reply by william on June 18, 2013 at 4:25am

Do you know which township(s)?

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Permalink Reply by J Louis Copeland on June 18, 2013 at 11:36am

I am in Green Township, half way between Cadiz and Hopedale.

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