Not exact matches
Intriguing thing is that the 20 % of the LOD's decadal variability is strongly correlated to sunspot
magnetic cycle, which may not be cause but another parallel and
event http://www.vukcevic.talktalk.net/SSN-LOD.htm
For some unexplained reason there have been a large number of coronal holes on the surface of the sun, in low latitude positions during solar
magnetic cycle 24, however due to the reduction in the solar wind density the solar wind bursts have less effect on cloud modulation which explains why there has suddenly be an increase sea ice in the Antarctic, a recovery of sea ice in the Arctic, and an inhibiting of the formation of El Niño
events.
Bond found cosmogenic isotope changes at each of the climate change
events which it is accepted are due solar
magnetic cycle changes but was not able to provide at the time of publishing of his results (2000) an explanation as to mechanism.)
Gerald Bond found evidence of cosmogenic isotope changes at each of a long series of warming followed by cooling
events (he has able to track 25
events through current interglacial Holocene and into the last glacial period, at which point he reached the limit of the range of the proxy analysis technique) which indicates a solar
magnetic cycle change caused the warming followed by cooling
cycle.
The most likely candidate for that climatic variable force that comes to mind is solar variability (because I can think of no other force that can change or reverse in a different trend often enough, and quick enough to account for the historical climatic record) and the primary and secondary effects associated with this solar variability which I feel are a significant player in glacial / inter-glacial
cycles, counter climatic trends when taken into consideration with these factors which are, land / ocean arrangements, mean land elevation, mean magnetic field strength of the earth (magnetic excursions), the mean state of the climate (average global temperature), the initial state of the earth's climate (how close to interglacial - glacial threshold condition it is) the state of random terrestrial (violent volcanic eruption, or a random atmospheric circulation / oceanic pattern that feeds upon itself possibly) / extra terrestrial events (super-nova in vicinity of earth or a random impact) along with Milankovitch C
cycles, counter climatic trends when taken into consideration with these factors which are, land / ocean arrangements, mean land elevation, mean
magnetic field strength of the earth (
magnetic excursions), the mean state of the climate (average global temperature), the initial state of the earth's climate (how close to interglacial - glacial threshold condition it is) the state of random terrestrial (violent volcanic eruption, or a random atmospheric circulation / oceanic pattern that feeds upon itself possibly) / extra terrestrial
events (super-nova in vicinity of earth or a random impact) along with Milankovitch
CyclesCycles.
GCRs are modulated by both solar
magnetic field, which is largely unpredictable in strength except for generalities associated with 11 - year sunspot
cycle and is also modulated by unpredictable
events like nearby supernovas, and by more predictable very very long slow changes in intensity due to the solar system traversing spiral arms of our galaxy and wandering above and below the galactic plane in
cycles lasting tens and hundreds of millions of years.