UK MET Office: Fastest decline in solar activity since the last ice age


Watts Up With That?

h/t Benny Peiser – the UK MET office has published a study which suggests solar activity is currently plummeting, the fastest rate of decline in 9300 years. The study also raises the odds of Maunder Minimum style conditions by 2050 from 8% to 15 – 20%.

Variations in solar forcing for Total Solar Irradiance (W m−2) and ultraviolet irradiance in the 200–320 nm spectral band (W m−2) relative to the mean of the repeated cycle in CTRL-8.5 for (a) CTRL-8.5 (black), (b) EXPT-A (blue) and (c) EXPT-B (red). The value of this mean is 1,366.2 W m−2 for TSI and 27.4 W m−2 for the ultraviolet band. Figure 1: Variations in solar forcing for Total Solar Irradiance (W m−2) and ultraviolet irradiance in the 200–320 nm spectral band (W m−2) relative to the mean of the repeated cycle in CTRL-8.5 for (a) CTRL-8.5 (black), (b) EXPT-A (blue) and (c) EXPT-B (red). The value of this mean is 1,366.2 W m−2 for TSI and 27.4 W m−2 for the ultraviolet band.

Regional climate impacts of a possible future grand solar minimum

The abstract of the study;

The past few decades have been characterized by a period of relatively high solar activity. However, the recent prolonged solar minimum and subsequent weak solar cycle 24 have led to suggestions that the…

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