The Evacuation of England: The Twist in the Gulf StreamGratacap, L. P. (Louis Pope)
General
The Evacuation of England: The Twist in the Gulf Stream
Gratacap, L. P. (Louis Pope)
Climatic changes -- Fiction; Great Britain -- Fiction
regions by the Gulf Stream as is received from the sun by the entire
Arctic regions, the quantity conveyed from the tropics by the stream to
that received from the sun by the Arctic regions being nearly as two
to five. And it is this fact of the tremendous drain that the Gulf
Stream makes on the equatorial regions, those immense manufactories of
heat, that its removal--meaning the sudden abstraction of this heat
or much of it from our latitude--produces a more forceful interchange
in the airs of the north and the south. It produces winds of a higher
velocity, and because of this, the wind coming to us from the Equator
does not so quickly free itself of its contained moisture. Croll has
shown in his splendid work of theory and proof, that the winds warmed
by the Gulf stream are the true causes for our unusual and exceptional
heat above corresponding positions on the western side of the Atlantic
basin. The Gulf Stream gone, these warming winds will bring us heat no
longer. But they will bring us moisture, and in larger quantities, and
then the process of refrigeration over our chilled coasts will turn
that into snow. The snows will be deeper, and they will last longer. In
this way, Croll, defending himself against the criticism of Findlay,
shows that the winds--the anti-trades blowing from the south to replace
the atmospheric emptiness--I suppose we might say vacuum--left by the
descent of the cold winds from the poles, parted with the most of
their moisture in the equatorial belt. Now by reason of their greater
velocity they will not do that; they will reach us much less despoiled
of their watery burdens.
“Our highlands and our coast position make us natural condensers.
To-day we have a rainfall in the year of about thirty inches. That may
now be doubled. The southwest winds are our most general winds. Out of
a thousand as a maximum, during the year, two hundred and twenty-five
are from the southwest. These are wet winds. And in the same total
there are one hundred and eleven south winds which also carry moisture,
making a possible percentage of one third of all the winds that blow
over us as rain winds, or now by reason of our altered state as snow
makers. But this relative frequency will now be increased. There will
be a longer continuation of the west winds, because as I have suggested
they will be stronger. They are to-day most intense in the winter
months. Our south and southwest winds gather moisture from a wide
expanse of sea, the same expanse from which they formerly gathered heat
from the Gulf Stream was widely diffused over the north Atlantic, both
north and south, for as Croll shows, by reason of a high barometric
pressure somewhere off the west of Maderia and a low pressure north of
Iceland, the tendency of the air south of the English Isles at that
point is to flow north. But these winds are no longer heat carriers.
They bring moisture only. They bear to us through the air the winding
sheets of our burial.”
Public-domain text, read in full here on John Shaqi.
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