Sentences with phrase «by cosmic ray flux»

(Note: The computer model used considers climate variations caused by cosmic ray flux, and other possibly major parameters, as negligible, completely ignoring many recent scientific findings.).

Not exact matches

Sunspot activity, which ebbs and flows on an 11 - year cycle, decreases the cosmic ray flux by periodically increasing the solar wind — a stream of charged particles emitted by the sun.

He also looked at the tree - ring 14C record, using the hypothesis that in the absence of solar activity the high energy cosmic rays which produce 14C in the atmosphere penetrate to circumterrestrial space in greater fluxes, being less repelled by the solar wind.

How these cyclical climate take place is still unknown, but they «are most likely caused by variations in the solar wind and associated magnetic fields that affect the flux of cosmic rays incident on cloudiness, and thereby control the amount of sunlight reaching the earth's surface and thus the climate.»

Our analysis also suggests that there is not a solid relationship between cosmic ray flux and low cloudiness as proposed by Marsh and Svensmark [2000].

Instead they offer a theory that climate change probably derives predominantly from natural ocean - atmosphere oscillations and / or by natural solar variations (irradiation and cosmic ray flux) and / or by natural cloud cover variations and / or the Milankovitch Effect, i.e. it is probably predominantly just natural.

I am concerned about the apparent lack of correlation between the shortwave reflections and CRF as measured by the neutron counter (figure 6 on my DRAFT copy of «Cosmic rays modulation of the cloud effects on the radiative flux in the Southern Hemisphere Magnetic Anomaly region»).

In particular, given that there has been no trend in the sunspot count or cosmic ray flux over the last 50 years [1], while the global temperature has increased by 0.5 - 0.6 °C [2], how can one seriously claim that your work shows solar activity to be the major driver of climate change today and over the last 50 years?

This is also why global warming alarmists try to do their best to quench anything related to the the solar variability → cosmic ray flux → atmospheric ionization → low altitude cloud cover link which by now has ample evidence for support, both empirical and experimental.

We propose that the cycle may be caused by modulation of cosmic ray (CR) flux by the Solar system vertical oscillation (64 My period) in the galaxy, the galactic north - south anisotropy of CR production in the galactic halo / wind / termination shock (due to the galactic motion toward the Virgo cluster), and the shielding by galactic magnetic fields.

Observation by NASA scientist: One possibility is the movements of Earth's core (where Earth's magnetic field originates) might disturb Earth's magnetic shielding of charged - particle (i.e., cosmic ray) fluxes that have been hypothesized to affect the formation of clouds.

7.4.5 Impact of Cosmic Rays on Aerosols and Clouds 43 44 High solar acti0vity leads to variations in the strength and three - dimensional structure of the heliosphere, 45 which reduces the flux of galactic cosmic rays (GCR) impinging upon the Earth's atmosphere by increasing 46 the deflection of low energCosmic Rays on Aerosols and Clouds 43 44 High solar acti0vity leads to variations in the strength and three - dimensional structure of the heliosphere, 45 which reduces the flux of galactic cosmic rays (GCR) impinging upon the Earth's atmosphere by increasing 46 the deflection of low energcosmic rays (GCR) impinging upon the Earth's atmosphere by increasing 46 the deflection of low energy GCR.

Reconstructing cosmic ray fluxes The starting point of [Shaviv and Veizer, 2003] is a reconstruction of cosmic ray fluxes over the past 1,000 m.y. based on 50 iron meteorites and a simple model estimating cosmic ray flux (CRF) induced by the Earth's passage through Galactic spiral arms -LRB-[Shaviv, 2002; Shaviv, 2003]-RRB-.

A prominent new example is a paper by [Shaviv and Veizer, 2003], which claims that fluctuations in cosmic ray flux reaching the Earth can explain 66 % of the temperature variance over the past 520 million years (520 m.y.), and that the sensitivity of climate to a doubling of CO2 is smaller than previously estimated.

They are most likely caused by variations in the solar wind and associated magnetic fields that affect the flux of cosmic rays incident on the earth's atmosphere.

There is no direct correlation or coincidence over observed time to indicate that it is «most likely caused by variations in the solar wind and associated magnetic fields that affect the flux of cosmic rays incident on the earth's atmosphere»

You can not shield against galactic cosmic rays — you'd need 13 cm of Aluminum shielding just to cut down the flux by a factor of 2.