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Published online 28 September 2008 | Nature | doi:10.1038/news.2008.1136
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Sunspot-hurricane link proposed
Controversial research hints that solar cycle affects cyclone intensity.
A new study suggests that more sunspots mean less intense hurricanes on Earth. But many hurricane experts are cool on the idea.
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Hai iam Inba
Dear Jeff Tollefson, I would like to ask your attention to a paper we recently published in JGR-Space Physics entitled ?Are changes of the geomagnetic field intensity related to changes of the tropical Pacific sea-level pressure during the last 50 years??. In this manuscript we investigated if changes in the large-scale atmospheric circulation in the southern Pacific could be related to the westward drift of the Southern Hemisphere Magnetic Anomaly (also known as South Atlantic Magnetic Anomaly). We found that the changes in sea-level pressure and the Walker circulation are correlated to the westward drift of the magnetic anomaly, which suggests that magnetospheric, ionospheric and upper-atmosphere processes may propagate downward to the lower atmosphere. Best wishes, Luis Vieira Reference: Vieira L. E. A., L. A. da Silva, F. L. Guarnieri (2008), Are changes of the geomagnetic field intensity related to changes of the tropical Pacific sea-level pressure during the last 50 years?, J. Geophys. Res., 113, A08226, doi:10.1029/2008JA013052.
Hi, solar cycles most certainly have influence on many factors. Working in a hospital with a psychiatric deparment affiliation I noticed how sun storms effected the patients. A particular group of patients with in addition to there psychiatric problems with a thyroid malfunctions seemed to be more susceptible. That these storms affect the weather must be assumed. Regards Dr. Terence Hale
For some aspects of sunspot periodicity see: http://www.vukcevic.co.uk/graph1.gif Numerous attempts were made to explain the effect by simply attributing it to the gravitational forces alone, however, I do believe that the feedback from heliospheric current interaction with planetary magnetospheres is responsible for modulating sunspot activity. http://www.vukcevic.co.uk
For some aspects of sunspot periodicity see: http://www.vukcevic.co.uk/graph1.gif Numerous attempts were made to explain the effect by simply attributing it to the gravitational forces alone, however, I do believe that the feedback from heliospheric current interaction with planetary magnetospheres is responsible for modulating sunspot activity. http://www.vukcevic.co.uk
In the 1980's, I worked with Dr. John Freeman at the Institute for Storm Research in Houston. Dr. Freeman has passed on and the Institute is now the Weather Research Center. Dr. Freeman had written papers on the correlation of sunspot and hurricane activity. If one is truly interested, it might be worth the time to contact Weather Research Center is Houston and ask to see any data that Dr. Freeman may have made public.