Sentences with phrase «measuring global air temperatures»

Based mostly upon surface thermometers, the official pronouncement ignores the other two primary ways of measuring global air temperatures, satellites and radiosondes (weather balloons).

Not exact matches

Climate sensitivity is a measure of the equilibrium global surface air temperature change for a particular forcing.

For a long time now climatologists have been tracking the global average air temperature as a measure of planetary climate variability and trends, even though this metric reflects just a tiny fraction of Earth's net energy or heat content.

Climate sensitivity is a measure of the equilibrium global surface air temperature change for a particular forcing.

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.

John, it appears to this layman onlooker that in this case (and probably in many, many others) the thermometer data is being put to uses never originally intended, to wit, to measure «global warming» as evidenced by a hacked - together «global thermometer grid» that does not and was never intended to collect the «pure» ambient air temperatures of the locations where the thermometers have been placed.

Dana, I think you are pushing in the right direction with this; heat content is a much more direct measure of the underlying changes to the climate system than average air temperatures and climate science communicators should make heat content their first response to the suggestion that global warming is something that waxes and (allegedly, recently) wanes.

Bob Carter of James Cook University in Australia wrote an article in 2006 saying that there had been no global warming since 1998 according to the most widely used measure of average global air temperatures... [and] David Whitehouse of the Global Warming Policy Foundation in London made the same point... Mark Lynas said in the New Statesman that Mr. Whitehouse was «wrong... We know now that it was Mr. Lynas who was global warming since 1998 according to the most widely used measure of average global air temperatures... [and] David Whitehouse of the Global Warming Policy Foundation in London made the same point... Mark Lynas said in the New Statesman that Mr. Whitehouse was «wrong... We know now that it was Mr. Lynas who was global air temperatures... [and] David Whitehouse of the Global Warming Policy Foundation in London made the same point... Mark Lynas said in the New Statesman that Mr. Whitehouse was «wrong... We know now that it was Mr. Lynas who was Global Warming Policy Foundation in London made the same point... Mark Lynas said in the New Statesman that Mr. Whitehouse was «wrong... We know now that it was Mr. Lynas who was wrong.

A number is pulled out of the air with no justification (that stuff averages out over 15 years), and the supporting evidence of this is that we can measure global temperature averages.

To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a positive feedback: or the water warms than no heat can be considered ad «stored» (we have no phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).

The historical responsibility is not based on cumulative emissions but instead measured in terms of the countries» estimated contribution to the increase in global - mean surface - air temperature.

When we say «global warming» what we're actually talking about here are the air temperatures which, as one of the authors told me, is a relatively «fickle» measure of climate change.

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.

Hansen, J.E., and S. Lebedeff, 1987: Global trends of measured surface air temperature.

[4] Hansen, J.E., and S. Lebedeff, 1987: Global trends of measured surface air temperature.