Sentences with phrase «high solar activity decreases»
Not exact matches
«It could therefore be concluded that both the decreasing correlation between sunspot number and geomagnetic activity, and the deviation of the global temperature temperature long - term trend from solar activity as expressed by the sunspot index are due to the increased number of high speed streams of solar wind on the decreasing phase and the minimum of sunspot in the last decade.»
http://www.realclimate.org/
The correlation between the two quantities is 0.85 with p < 0.01 for the whole period studied.It could therefore be concluded that both the decreasing correlation between sunspot number and geomagnetic activity, and the deviation of the global temperature long - term trend from solar activity as expressed by sunspot index are due to the increased number of high - speed streams of solar wind on the declining phase and in the minimum of sunspot cycle in the last decades.»
Nevertheless, even if there is such decrease in the solar activity, there is a high confidence that the TSI RF variations will be much smaller in magnitude than the projected increased forcing due to GHG.
We had the warm ENSO period of the 1980s / 1990s (which led to the all - time record warm year 1998), an observed decrease in late 20th C cloud cover (and albedo), the highest solar activity for several thousand years, etc..