
Professor Harald Yndestad writes (here): ‘The Kola-section data analysis revealed, for the first time, that Arctic climate variations are controlled by the earth’s rotation and the moon’. He refers to ‘the riddle of a 6-year cycle in the cod population’ and comments: ‘My estimates reveal we are at a turning point and moving into a colder period and more ice extent.’ The 6-year cycle reminded me of a Talkshop post featuring a paper by astronomer Willy de Rop, in which he wrote, with illustrations: ‘We will now consider how often such a situation of maximum tides will occur. The perigee moves 0.164 358 002 0 a day relative to the node, corresponding to 360° in a period p 2 190.340565 days. If at the same time this moment of maximum influence coincides with the moment at which the Earth is in the perihelion of its orbit, the tides will reach an absolute maximum. So, when the perigee of the Moon’s orbit coincides with the ascending node, then this situation repeats after 2190.340565 days. This period p corresponds to 5.996 667 350 anomalistic years, thus nearly an entire number of anomalistic years.’ In other words, almost six years. It’s the beat period of the (lunar) anomalistic and tropical months, also of the full moon cycle and draconic year. Whether this plays a part in the cod discussion is an open question.
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In nature, nothing acts alone, writes Prof. Harald Yndestad. Therefore, something outside the cod stock, causes recruitment in periods of 6 years.
The source may be a 6-year temperature cycle in the Barents Sea. If the temperature in the Barents Sea has a period of 6 years, it must also have a source outside the Barents Sea. This means that there must be a first cause. A cause of causes, for temperature variations in the Barents Sea.
So, what is periodic in nature? Could the source be the tides or in the earth’s rotation? I contacted an astrophysicist.























