Sentences with phrase «water absorption model»

Not exact matches

Further improvement on the accuracy of the observations of the water ice absorption depth is needed to constrain the disk models.
We compared the observed depth of the ice absorption feature with the disk model based on \ cite -LCB- Oka2012 -RCB- including water ice photodesorption effect by stellar UV photons.
Direct comparison of the radiances predicted by the model to those observed by AIRS in the thermal spectral regions dominated by water vapor absorption provides a means of assessing the simulation of water vapor in the climate model at the high level of detail provided by spectral measurements.
If, for instance, CO2 concentrations are doubled, then the absorption would increase by 4 W / m2, but once the water vapor and clouds react, the absorption increases by almost 20 W / m2 — demonstrating that (in the GISS climate model, at least) the «feedbacks» are amplifying the effects of the initial radiative forcing from CO2 alone.
Yet models of atmospheric absorption that only take into account the water molecule's well - known rotational and vibration - rotational transitions don't match up with measurements of the atmosphere's absorption spectrum [1]....
The 0.9 degr.C for 2xCO2 is from the Modtran program, carefully composed from laboratory measurements, where line by line absorption characteristics were measured and implemented for different air pressures (heights), water, CO2 and CH4 levels, for different parts of the globe and with or without clouds, rain,... That is a basic «model», without any real life feedbacks (except water vapor, which may be included in different ways).
«how it is supposed to work» = according to non-real-world theoretical models that say CO2 molecules that are spaced together 1/20, 000 ths more closely today than they were in 1990 function just like a blanket draped over the ocean waters, and this CO2 blanket determines the net heat changes in the depths of the ocean more so than variations in direct shortwave radiation absorption does.
The issue is that the excess absorption, through the focus on CO2 and the modeling assumption of a positive feedback by water, is being modeled without a clear theoretical explanation of how exactly and by what the excess absorption is being absorbed.
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