Sentences with phrase «measured average global surface temperature»

Solid lines and squares represent measured average global surface temperature changes by NASA (blue), NOAA (yellow), and the UK Hadley Centre (green).

No one has yet managed to measure the average global surface temperature — once again incapable of rigorous definition — with any precision.

For example, over many years these people have said that you can not reliably measure the average global surface temperature of the Earth, or have claimed it is in error because of the heat island effect or whatever (all untrue, but they keep repeating it).

Not exact matches

Secondly, unlike the global average surface temperature trend, which has a lag with respect to radiative forcing, there is no such lag when heat content is measured in Joules (see http://blue.atmos.colostate.edu/publications/pdf/R-247.pdf).

(PS we are considering the climate sensitivity to be in terms of changes in global - time average surface temperature per unit global - time average radiative forcing, though one could also define other sensitivities for other measures of climate).

I think it's a mistake to refer to changes in global average surface air temperatures as if they were definitive measures of the change to the climate system.

The ACO2 accumulation in the atmosphere is too small to be measured; ACO2 acidification is too small to be measured; and the ACO2 contribution to the global average surface temperature is too small to be measured.

You are spending a lot of time rationalizing WHY there was a «standstill» in global warming (as measured by the «globally and annually averaged land and sea surface temperature anomaly»).

Global average surface temperature, measured by satellites and direct observations, is considered a key indicator of climate change.

Besides I strongly oppose (like R.Pielke and many others) the idea that the «global time average of the surface temperature» has any physical meaning or is a valid metrics to measure the «climate» and I can't see the beginning of a valid reason why it should correlate to any relevant dynamical parameter.

However you slice it, lolwot, there is a current «pause» (or «standstill») in the warming of the «globally and annually averaged land and sea surface temperature anomaly» (used by IPCC to measure «global warming»), despite unabated human GHG emissions and CO2 levels (Mauna Loa) reaching record levels.

GISS measures the change in global surface temperatures relative to average temperatures from 1951 to 1980.

The primary ways to monitor global average air temperatures are surface based thermometers (since the late 1800s), radiosondes (weather balloons, since about the 1950s), and satellites measuring microwave emissions (since 1979).

Unfortunately using global average surface air temperatures as a measure of total warming ignores the fact that most of the heat (more than 93 %) goes into our oceans, which continue to warm without any sign of a pause, as you can see below.

As just one example; «How we can know an average global sea surface temperature back to 1850 when so much of the world was unexplored let alone its oceans measured» should be just one example that should make scientists question whether the models they build are actually using reliable data, or whether they think they already know the answer and therefore just use data that supports it, no matter its doubtful provenance.

There are major unresolved issues concerning the ability of a global average surface temperature trend to accurately measure climate system heat changes.

Giaever also disputed the significance of the measured 0.8 °C average global surface warming over the past 130 years, comparing it to a human fever and the temperature at which he had to maintain tissue for cell growth during his own biophysical experiments, also showing the following slide:

This is only the global average surface temperature and it's only one measure of the climate system — and it's a very fickle measure.

Global average temperature The mean surface temperature of the Earth measured from three main sources: satellites, monthly readings from a network of over 3,000 surface temperature observation stations and sea surface temperature measurements taken mainly from the fleet of merchant ships, naval ships and data buoys.