Electrical signature in polar night cloud base variations

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Title
Electrical signature in polar night cloud base variations
Title of Series
Author
Harrison, R. Giles
Ambaum, Maarten H. P.
License
CC Attribution - NonCommercial - ShareAlike 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor and the work or content is shared also in adapted form only under the conditions of this license.
Identifiers
Publisher
Institute of Physics (IOP)
Release Date
2013
Language
English

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Subject Area
Abstract
Layer clouds are globally extensive. Their lower edges are charged negatively by the fair weather atmospheric electricity current flowing vertically through them. Using polar winter surface meteorological data from Sodankylä (Finland) and Halley (Antarctica), we find that when meteorological diurnal variations are weak, an appreciable diurnal cycle, on average, persists in the cloud base heights, detected using a laser ceilometer. The diurnal cloud base heights from both sites correlate more closely with the Carnegie curve of global atmospheric electricity than with local meteorological measurements. The cloud base sensitivities are indistinguishable between the northern and southern hemispheres, averaging a (4.0 ± 0.5) m rise for a 1% change in the fair weather electric current density. This suggests that the global fair weather current, which is affected by space weather, cosmic rays and the El Niño Southern Oscillation, is linked with layer cloud properties.

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I would on and on and on and on and on and on and on and on and on and on and 1 of the remarkable things about the atmosphere is so there's a current flowing all those in the top of the atmosphere to the ground this is generated globally by thunderstorms and the current flows around the entire planet and here at Redding we have some something plates which allows to collect that current
measures and and so
for measurements made in the 19 twenties on a ship
sailing ship called the coming it was found that this current varied but like this about the way
we're on time with a minimum at about three o'clock
in the morning until and about and 19 allergy and those of maximum so if you think about having all days really this means
that there's a sort of heart beats of atmospheric electricity which is running through every day and as a result of the fund
so we're interested in whether this curve was actually
present in plants themselves in other words was an effect of the current on the kinds and to
do that we need to go somewhere where there's very little in the way of other influences on the climate
we went to the polls that because in the northern hemisphere and southern hemisphere measurements are routinely made of the basis of plants using lasers the father life and of the sky
and measure how long it takes for the light to come back and
therefore would have so we took the Coulombe
measurements have very high links to science and competitive economy and we found that there was a
variational was very similar this illustrates for the
1st time there are changes in which we can
associate with the variations on the electrical
like the and
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