Introduction
 Theses
    Introduction
    Warm healted
    Cool sea - cool winter
    What counts
    Polar air everywhere
    Ice invaded Norway
    Baltic experiment
    Solid Arctic axis
    Four decades cold
    Why Britain cold
    Cause for warm
    Spreading of warming
    One rise - two shifts
 Cooling Europe 1939
 Climate down 1939-42
 Sea War turn climate
 Big Warming 1918
 Climate change twice
 References
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Theses 2D

Thesis    Facts    Evidence    Conclusion   
 

Polar air everywhere
– January 1940’s polar conditions

 

Thesis

January 1940 was very cold everywhere in the Northern Hemisphere, Europe, China and the United States. This became possible because the atmosphere lacked the volume of humidity it usually has at that time in winter. The low level was caused by WW II which had just started in Europe on September 1st 1939, and a small contribution by the war in China can not be completely be excluded.

 

Facts

Since WW II commenced in autumn 1939, excessive rain fell in Western Europe along the front line from Belgium to Switzerland, particularly during October and November, while the United States simultaneously experienced an extremely dry November, and a record dry period lasting from October to December 1939.

In late 1939 there was a disruption of the general circulation. The war at sea in Europe’s northern home waters was the main cause. A contributing factor was the ‘imbalance’ of air moisture in the global north. Deprived of common humidity by military ‘rain forcing’ in Western Europe, arctic air met little resistant down to the mid latitude in January 1940.

The event occurred according to ‘marks’ that showed the limited range, for example, that it was too warm in eastern Canada and normal in Switzerland and in the south.

 

Evidence

This investigation has analysed the US Weather Bureau precipitation data for late 1939, showing that the heavy rain in Europe correlate perfectly with a record dry time in the USA, about which Dr. James H. Kimball (local head of the US Weather Bureau) said: that the November was unusual because of its dry air, as reported by The New York Times on January 7th 1940. The cold spell in January was the immediate consequence of the excessive ‘rain-making’ by military activities in Western to Central Europe.

 

Conclusion and further reading

The cold January of 1940 all over the northern part of the Northern Hemisphere can be directly linked to the military activities in Europe since September 1939, that might have contributed, albeit not generated the arctic North European war winter 1939-40, which lasted until March, elsewhere, in USA and China, the cold spell took reign in January 1940 only. Rain_Making (2_31), and USA dried out (2_32), and War in China (2_33).

 


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