Sentences with phrase «stratospheric cooling»

The IPCC actually cites measurements of stratospheric cooling as evidence against the hypothesis that global warming would be caused by increased solar activity, as in such case the entire atmosphere would have to show a warming trend, including the stratosphere.

To elaborate on my comment # 3 above, the mechanism for stratospheric cooling consequent to increased atmospheric CO2 appears to be one of the most misunderstood elements of the greenhouse effect.

In regards to Michael Jankowski's comment (# 11), the Fu et al. (2004, Nature) article showed that the satellite record of tropospheric temperature trends, based on the Microwave Sounding Unit channel 2, is contaminated by stratospheric cooling on the order of -0.08 K / decade.

Next, the article reports on stratospheric cooling without and doesn't mention that this is a fingerprint of man - made global warming: the chance to report that something is cooling seems to be more important.

The severity and duration of the Antarctic ozone hole also increases due to greenhouse gas - induced stratospheric cooling over the coming decades, although ozone there is already so depleted that any additional losses are relatively small.

We may indeed see stratospheric cooling and tropospheric warming in the satellite record.

There are also some indications from models that this may have been caused by a combination of stratospheric ozone depletion and stratospheric cooling due to CO2 (Gillett and Thompson, 2002; Shindell and Schmidt, 2004).

You've got the radiative physics, the measurements of ocean temperature and land temperature, the changes in ocean heat content (Hint — upwards, whereas if if was just a matter of circulation moving heat around you might expect something more simple) and of course observed predictions such as stratospheric cooling which you don't get when warming occurs from oceanic circulation.

This would tend to reduce the potential for TOA forcing even more, leading to more stratospheric cooling in response to an increase in CO2; however, the presence of such a substance would itself make the inital stratospheric temperature warmer than otherwise.

Without belaboring the process, I thought it might be worthwhile to summarize that perspective here, because stratospheric cooling continues to fascinate and bedevil those who hear about it.

«Third, the «forcing» can not be possibly ever observed in laboratory conditions because the definition of forcing contains three physically unrealizable conditions: (a) CO2 mixes up, but temperature profile stays the same, (b) stratospheric cooling equilibrates with tropopause conditions before troposphere does, and (c) troposphere - surface interface is kept frozen.

It might be worthwhile to compare how UAH and RSS differ in their handling of channel crosstalk, and what the trends of the various levels are; is the lower trend of RSS tropospheric temperatures reflective of greater stratospheric cooling?

What is clear is that Spencer and Christy's analysis was contaminated by stratospheric cooling effects; Fu provides one way to compensate, and no doubt other ways will emerge in the future.

He was explicitly using that mechanism to explain stratospheric cooling observed here on Earth during recent decades (or rather that part of cooling not attributable to ozone depletion).

I would take exception, however, to the explanation offered for stratospheric cooling consequent to increasing atmospheric CO2.

[AR4 3 ES] The error in the ISPM was apparently due to the citation of of raw T2 channel satellite trends, which are uncorrected for the effect of stratospheric cooling [AR4 3.4.1.2].

Written by Steven Capozzola The IPCC claims that stratospheric cooling disproves solar - driven warming, but they acknowledge that this cooling was caused by ozone depletion.

CO2 causes Volcanoes [No joke, just after the Iceland volcano there were peer reviewed studies linking it to global warming] Earthquakes [Same thing after the Japan earthquake] More snow Less snow Heat waves Intense cold Floods Droughts More extreme weather Less extreme weather Melting ice Freezing water More hurricanes Fewer hurricanes More cloud Fewer clouds Stratospheric warming Stratospheric cooling etc. etc. ad nauseum.

This implies that future stratospheric cooling, induced by an increase in the anthropogenic carbon dioxide burden, is likely to enhance denitrification and to delay until late in the next century the return of Arctic stratospheric ozone to preindustrial values.

It is likely that radiosonde records overestimate stratospheric cooling, owing to changes in sondes not yet accounted for.

I think at least some fraction of the equilibrium and also transient stratospheric cooling depends on the solar heating of the stratosphere; the question is whether there is some amount of cooling that would would still occur in the absence of that solar heating.

Laws of Nature: Methinks maybe you haven't thought through the issue of stratospheric cooling very much.