On Aug 23, 12:07*pm, wrote:
On 23 Aug, 11:00, "Jack )"
wrote:
I was aware of previous reports of "The Hum" but this particular one
seems to have such an obvious explanation; it is coinciding with the
need to catch up with the harvest that had been delayed by a great
deal of rain. Combines in East Anglia regularly operate at night. *My
18 yr old son tells that he has been hearing this noise every summer
but had not thought the hum was of any great significance merely being
the amalgamated noise of distant combines. *I had certainly heard it
in previous years but wouldn't like to pinpoint particular times/
dates.
In reality, the article by Paul Simons is about a non-event. *I simply
want to put the record straight as I see (hear) things.
Jack
Not only the buzz of Combine harvesters operating but the grain drying
equipment which is running non stop on many farms (and maybe moreso
overnight to use cheaper energy?)
Spells like last week's have a lot of channeled acoustic noise
aircraft can be heard frequently in this weather some 40 minutes south
of Manchester airport and the M6 sounds like a motorway.
The reason for the exceptionlal noise in these spells as opposed to
most inversions is that the Lows are sustained and in fact tend to
gather just off the west coat of Britain.
At the end of that spell it took a Low from the sout, one from
Newfoundland and at the very end fragged part of the Greenland one
into it as well.
I have an idea that there is a relationship with the noises highs and
lows produce which when channeled can have an effect similar to, if
not the exact phenomenon as, coupling the sound waves.
I rather think that this running together of wave trains from
different air masses can produce seismic events some 80 degree distant
to the cyclones and/or anticyclones.
I am certain there is a relationship with that sort of weather
phenomenon off the Carolinas and seismic events in the Aleutians.
Britain seems to link to Japan. It's about the same distance from
Britain to Sucre in Chile as it is to the Ryukyu Islands, Japan; not
that far from he
http://earthquake.usgs.gov/eqcenter/...10/290_-15.php
Dawlish will be pleased to note the obvious I am sure. Pity.