dc.contributor.author |
Mörner, Nils-Axel |
|
dc.date.accessioned |
2013-09-05T15:45:31Z |
|
dc.date.available |
2013-09-05T15:45:31Z |
|
dc.date.issued |
2013 |
|
dc.identifier.uri |
http://www.taccire.sua.ac.tz/handle/123456789/151 |
|
dc.description |
SCIENCEDOMAIN international
www.sciencedomain.org |
en_GB |
dc.description.abstract |
Solar variability affects Earth climate. It is proposed that this forcing primarily goes via the
interaction of the Solar Wind with the Earth’s magnetosphere, rather than via changes in
irradiance, which is generally assumed. The cyclic variations in Solar Wind emission
generate corresponding changes in the Earth’s rate of rotation (LOD), as recorded by
correlations between sunspot numbers and LOD-variations. Variations in Earth’s rotation
affect not only the atmospheric circulation but also the ocean circulation. Because the
ocean water has a very high heat storing capacity, changes in the ocean circulation will
affect regional climate. The redistribution of oceanic water masses also gives rise of
irregular changes in sea level over the globe. During the last 6000 years this redistribution
of ocean water masses seems to have been the dominate sea level variable. The El
Niño/ENSO events contain a part, which represent an interchange of angular momentum
between the solid earth (LOD) and the equatorial ocean circulation in the Pacific. The 60-
year solar-terrestrial cycle controlled the climatic conditions and main fish stocks in the
Barents Sea via an oceanic beat in the inflow of warm Atlantic water. The major Solar
Maxima and Minima of the last 600 years correspond to decreases and increases in the
Earth’s rotation, which altered the ocean circulation in the North Atlantic by that
generating major climatic changes and sea level changes. Speeding-ups of the Earth’s
rotation during the Spörer, Maunder and Dalton Solar Minima forced the Gulf Stream to
be concentrated on its southern branch and cold Arctic water to penetrate far down along
the European coasts, which lead to Little Ice Age conditions in the Arctic and in northern
to middle Europe but extra warm periods in the Gibraltar to northwest African region.
During the Solar Maxima, the situation was the reverse. By around 2040, we will be in a
new major Solar Minimum and may, therefore, expect a period of cold climatic conditions. |
en_GB |
dc.language.iso |
en |
en_GB |
dc.publisher |
SCIENCEDOMAIN international |
en_GB |
dc.relation.ispartofseries |
Physical Review & Research International;3(2): 117-136 |
|
dc.subject |
Solar-terrestrial interaction |
en_GB |
dc.subject |
solar wind |
en_GB |
dc.subject |
earth’s rotation |
en_GB |
dc.subject |
ocean circulation |
en_GB |
dc.subject |
solar variability |
en_GB |
dc.subject |
terrestrial Climate |
en_GB |
dc.subject |
climate change |
en_GB |
dc.title |
Solar Wind, Earth’s Rotation and Changes in Terrestrial Climate |
en_GB |
dc.type |
Article |
en_GB |