Sentences with phrase «than surface temperature fluctuations»

The sines are known to be connected with motions in the earth's core which manifest in ways other than surface temperature fluctuations such as length of day.

Not exact matches

> We analyze and compare the monthly global land - sea surface temperature datasets HADCRUT3 and HADCRUT4 for 1850 - 2010 by subtracting two analytically modeled components and demonstrating with a suitable low - pass filter that the residue contains no significant fluctuations with periods longer than the 22 - year Hale cycle.

Thus, the increase in the surface temperature at sea level caused by doubling of the present - day CO2 concentration in the atmosphere will be less than 0.01 °C, which is negligible in comparison with natural temporal fluctuations of global temperature.

It is evident from Figure 2.3 that globally averaged temperature fluctuations associated with El Niño tend to be larger aloft than at the surface, and this behavior is well - simulated in numerical models.

http://www.agci.org/docs/lean.pdf «Global (and regional) surface temperature fluctuations in the past 120 years reflect, as in the space era, a combination of solar, volcanic, ENSO, and anthropogenic influences, with relative contributions shown in Figure 6.22 The adopted solar brightness changes in this scenario are based on a solar surface flux transport model; although long - term changes are «50 % larger than the 11 - year irradiance cycle, they are significantly smaller than the original estimates based on variations in Sun - like stars and geomagnetic activity.

Given the fact that internally the earth itself has large temperature changes which melts the upper mantle and deep crust producing volcanic eruptions at the surface, it is not difficult to see that the thermal energy involved and the mass of the earth itself, that the earth's own internal temperature fluctuations might have bigger effect on the atmosphere's temperature than the sun.

In his book Spencer contends that short - term fluctuations in the energy balance and surface temperature are consistent with a low climate sensitivity: «A careful examination of the satellite data suggests that manmade warming due to a doubling of atmospheric carbon dioxide could be less than 1ºC — possibly much less.»