Sentences with phrase «water vapour feedback»

Positive water vapour feedback in climate models confirmed by satellite observations.

Both of these papers suggested a strong water vapour feedback.

Allowing for changes to outgoing longwave radiation (OLR) but without allowing for water vapour feedback, detailed calculations show that the greenhouse sensitivity to doubling CO2 is about 0.24 Celsius.

Skeptical Science has covered cloud feedback here, and as an interesting aside, amongst many papers on this subject, Dessler has a new paper on water vapour feedbacks in the Journal of Climate.

You really need to account for the vertical structure of temperature (the lapse rate), and if you want your model to get a number of basic things right you need to include spectrally grey absorbers — plus the additional mixing in the troposphere (which depends on convection, and hence affects water vapour feedbacks) etc....

Remember that direct greenhouse effect from CO2 is quite small; the predictions rely on positive feedback from other effects (particularly water vapour feedbacks, a far more significant greenhouse gas) to cause substantial warming.

(a) only CO2 + water vapour feedback effects can account for the majority of this rise (and that it can be separated from noise and natural processes like ENSO, PDO, cloud cover etc);

Over the last 12 months, we've tackled a 100 + scientific topics that range from water vapour feedbacks, the carbon cycle, climate sensitivity, satellite / surface temperature records, glacier retreat, climate modelling to hurricanes.

However, you could add work on upper tropospheric water vapour feedbacks which were quite clearly motivated by Lindzen's criticisms and.....

This, they say, implies that «long - term water vapour feedback is negative — that it would reduce rather than amplify the response of the climate system to external forcing such as that from increasing atmospheric CO2.»

Now call me layman, for thats what I am, but isn't water vapour a feedback mechanism in climate modelling.

Reality: You can count the number of climate scientists who believe water vapour feedback to be negative on one hand (out of thousands).

So CO2 changes are the root cause of whatever water vapour feedback winds up occurring.»

Therefore, the balance of evidence favours a positive clear - sky water vapour feedback of magnitude comparable to that found in simulations.

«Positive Water Vapour Feedback in Climate Models Confirmed by Satellite Data.»