Sentences with phrase «to estimate temperature change»

Since solar effects, both direct and indirect, are more than sufficient to account for net estimated temperature change over the period of significant fossil fuel usage, have humans been warming or cooling the planet?

The IPCC is studying 250 years (or just 0.000027 %) of the 900 million years of estimated temperature change in Figure 1.

Given that the cosmic ray effect described by Svensmark would be more than sufficient to account for the net estimated temperature change since the Industrial Revolution, the key question becomes: Has human activity actually warmed, cooled or had no net impact on the planet?

They also estimate temperature change when those SST are not so constrained.

Indeed it has been shown in a comparison of results from the simple model and HadCM2 that the simple model under - estimates the temperature change compared to HadCM2 on longer time - scales (Raper et al., 2001a).

In a previous post entitled Worldwide Glacier Retreat, we highlighted the results of a study by J. Oerlemans, who compiled glacier data from around the world and used them to estimate temperature change over the last ~ 400 years.

Because the GISS analysis combines available sea surface temperature records with meteorological station measurements, we test alternative choices for the ocean data, showing that global temperature change is sensitive to estimated temperature change in polar regions where observations are limited.

However, both the elevation13 and moisture origin corrections on the estimated temperature change do not indicate a systematic overestimation of temperature between MIS 16 and 18.

The IPCC is studying 250 (0.000027 %) of the 900 million years of estimated temperature change and ignoring major climate change mechanisms and considerations, including our solar system's orbit in the Milky Way galaxy.

Overall, the estimated temperature changes and radiative forcings are both slightly lower than in Hansen and Sato (2011)(Figure 5).

More recent documentation (Hansen et al. 2010) compares alternative analyses and addresses questions about perception and reality of global warming; various choices for the ocean data are tested; it is also shown that global temperature change is sensitive to estimated temperature change in polar regions, where observations are limited.

Dividing that into the estimated temperature change of 0.727 °C and multiplying by 3.71 W / m ² gives an estimated climate sensitivity of 1.62 °C, close to that from reworking Gregory 02.