Sentences with phrase «estimates of global temperature so»

We can make good estimates of global temperature so can estimate planck radiation (on global level), good estimates of albedo from ice extent, reasonable estimates of evaporation and convection from temperature contraints, now try closing that surface budget with GHG.

Not exact matches

Item 8 could be confusing in having so many messages: «It is extremely likely that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas... The best estimate of the human - induced contribution to warming is similar to the observed warming over this period....

So my question is: are there any other papers I should look at for a realistic estimate of the sensitivity of global temperature to the solar cycle?

The estimated range of the impact of Mount Pinatubo on Global Temperatures varies from 0.2 to 0.5 deg C, depending on the study, so we'll use approximately 0.35 deg C to account for its effect.

In recent decades, a number of groups have tried combining sets of these proxy records together to construct long - term estimates of global temperature change over the last millennium or so.

So, they didn't actually simulate sea level changes, but instead estimated how much sea level rise they would expect from man - made global warming, and then used computer model predictions of temperature changes, to predict that sea levels will have risen by 0.8 - 2 metres by 2100.

For about 200 of the urban stations, they do not have enough rural neighbours for their computer program to work, and so these unadjusted urban stations are not included in their global temperature estimates.

JimD, BTW, I was curious how much impact the isolation of the Antarctic had on global temperatures based on the normal radiant balance, so i did some quick estimates using the Meridional energy flux based on the satellite based SST OI v2 data.

The problem with under - coverage of polar and remote regions for representation on global surface temperature estimates even so late as today is a shameful comment on how little commitment to understanding our world better those with resources have.

The WMO's preliminary estimate, based on data from January to October, shows that the global average surface temperature for 2015 so far is around 0.73 °C above the 1961 - 1990 average of 14 °C, and approximately 1 °C above the pre-industrial 1880 - 1899 period.

HadCRUT3 doesn't sample the Arctic at all well, so it probably has a cold bias if you consider it as an estimate of global temperature.

So solar, volcanic activity, ENSO / AMO etc. are independent of TCR and any measurement of TCR would presumably have accounted for their (presumed estimated) effect upon global temperatures.

To do so, we compile information on anthropogenic and natural drivers of global surface temperature, use these data to estimate the statistical model through 1998, and use the model to simulate global surface temperature between 1999 and 2008.

We study climate sensitivity and feedback processes in three independent ways: (1) by using a three dimensional (3 - D) global climate model for experiments in which solar irradiance So is increased 2 percent or CO2 is doubled, (2) by using the CLIMAP climate boundary conditions to analyze the contributions of different physical processes to the cooling of the last ice age (18K years ago), and (3) by using estimated changes in global temperature and the abundance of atmospheric greenhouse gases to deduce an empirical climate sensitivity for the period 1850 - 1980.

These proxies, of course, are an indirect method of trying to estimate global temperature, so it's not clear exactly how reliable they are.

`... over the 100 years since 1870 the successive five year values of average temperatures in England have been highly significantly correlated with the best estimates of the averages for the whole Northern Hemisphere and for the whole earth» (In this last comment he is no doubt referring to his work at CRU where global surface records back to 1860 or so were eventually gathered) he continued; «they probably mean that over the last three centuries the CET temperatures provide a reasonable indication of the tendency of the global climatic regime.»

So I estimate that if we followed IEO2011 / RCP8.5 out to 2035, and then stabilized our forcing, we would eventually arrive at an average global temperature increase of 2.4 ºC.