Spreading of warming, by time, by region
Thesis
It is possible to draw certain conclusions from the
way something develops. After the Big Warming occurred at Spitsbergen
in 1918, the ‘warming spreading’ make it possible to draw the
conclusion that the temperature jump in 1918 came like a ‘bang’, based
on a sudden forcing, as the war at sea in Western European waters at
that time could have provided.
Facts
The sudden eight degrees winter temperature increase
at Spitsbergen in the late 1910s was at first closely confined to
Spitsbergen. Only over the time the warming spread over wider region.
In Greenland it arrived in the early day of the 1920s,
but lasted only for one decade. In Europe the warming arrived rather
quickly only months later at the Norwegian city of Vardo close to the
North Cape, and then crept over the next few years southwards. The
means temperatures in Norway rose by 1-2°C over the next two
decades. Whole Northern Europe benefited correspondingly.
Meanwhile, the winter air temperatures at Spitsbergen
remained not only stable but also increased over the next two decades
as well.
The Barents Sea followed slowly either, but as this
sea is not very deep its potential to sustain a long lasting warming is
limited.
The generation of the warmth must have come from the
Norwegian Sea, either by ‘putting through permanently’ warm Gulf
current waters, or by storage and release of heat, which were able to
sustain and increase a Spitsbergen warming.
Evidence
The influence of the war at sea WWI activities will
not necessarily explain every shift in the Northern Atlantic water
basin over two decades, but it can not be excluded outright that the
massive anthropogenic impact on the seas have set initial forces in
motions and that they lasted for some time.
Conclusion and further reading
The spreading of Spitsbergen’s Big Warming in 1918 to
other regions and over periods of time may still hold a number of clues
on what had happened north of the Arctic Circle at the end of WWI more
than eight decades ago. Nevertheless, in the way the event happened and
spread, one can reasonably draw the conclusion, that a ‘mighty force’
must have started the Spitsbergen event in the first place. If it was
not the war at sea, what was the cause than? Warming of Europe,
Greening of Greenland – Spitsbergen warmth takes the North Atlantic (5_15), and Spitsbergen – Big Warming (5_12).
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