In a message dated 29/03/2006, jonfr500@......... writes:

What  does long period of vibrations from wind and ocean wave have on  the
geophone type that i have. I am wondering about the effects because  there
is going to be high wind for the next few days due to a storm that  is
passing over Iceland. I don't plan to take the geophone  offline.



Hi Jon,
 
    Generally a large increase in the background noise.  You may also see 
particular frequencies excited due to buildings, cavities like  corridors, 
ventilation shafts, vertical poles.... increased sea waves.... You  don't have trees 
do you?
 
    Regards,
 
    Chris Chapman






In a message dated 29/03/2006, jonfr500@......... writes:
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Hi Jon,
 
    Generally a large increase in the background no=
ise.=20
You may also see particular frequencies excited due to buildings, cavities l=
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corridors, ventilation shafts, vertical poles.... increased sea waves.... Yo=
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don't have trees do you?
 
    Regards,
 
    Chris Chapman