HeNe said:Dose the cosmic rays have any roll in our weather
This question hits me yesterday when I was studying the electric charge and its roll in the weather , so dose the cosmic rays have any roll or its roll is just negligible…. when they hit our atmosphere
Alan Thorpe, professor of meteorology at the University of Reading and Chief Executive of the UK Natural Environment Research Council, commented on the film in New Scientist. He wrote, "First, let's deal with the main thesis: that the presence or absence of cosmic rays in Earth's atmosphere is a better explanation for temperature variation than the concentration of CO2 and other gases. This is not a new assertion and it is patently wrong: there is no credible evidence that cosmic rays play a significant role...Let scepticism reign, but let's not play games with the evidence."
Tanja said:
This is very misleading. The radiative cooling effect of clouds are albedo changes that reflect SW radiation. This cooling is offset by increased LW flux. The 17 - 35 Wm2 is being used out of context in this example. Deliberately it appears to mislead the reader into accepting the authors premise.S Solar constant (at 1 AU) 1360 W/m2
S/4 Top of atmosphere 340 W/m2
S/4 (1 - a ) Earth's albedo a = 0.3 235 W/m2
1% change in Earth's albedo 1 W/m2
Estimated radiative effect of the increase of CO2 since 1750 until present 1.5 W/m2
Doubling of CO2 4 W/m2
Radiative effect of clouds (cooling) 17- 35 W/m2
– In general, variations in cloud properties (cloud amount, cloud droplet effective radius, cloud optical depth, cloud liquid water path) from MODIS over the Southern Hemisphere subtropical oceans do not show statistically significant correlations with variations in GCR flux associated with Forbush decrease events. This is also the case for 1–5 day lagged correlations.
– Cloud droplet size has a rather large negative correlation with GCR, in agreement with a possible GCR-CCNcloud coupling. In one of the domains studied (off the coast of SW Africa), that correlation was statistically significant.
Cosmic rays are high-energy particles that originate from outer space. They can come from various sources such as the sun, stars, and other galaxies.
Cosmic rays have been found to have a minimal impact on our weather. They can sometimes cause a small increase in cloud cover, but overall their effect is very small compared to other factors such as solar radiation and human-caused greenhouse gases.
No, cosmic rays do not have the ability to cause extreme weather events. These events are primarily caused by the Earth's atmosphere, ocean currents, and other natural factors.
Cosmic rays can be harmful to humans if they are exposed to large doses, but our atmosphere protects us from the majority of them. The Earth's magnetic field and atmosphere act as a shield, blocking out the majority of cosmic rays that would otherwise reach the surface.
Scientists study the effects of cosmic rays on weather by using satellite data and ground-based measurements. They also use computer models to simulate the interactions between cosmic rays and the Earth's atmosphere. However, more research is needed to fully understand the role of cosmic rays in our weather.