peak AGW belief? Sept 2, 2009 16:23:11 GMT
Post by nautonnier on Sept 2, 2009 16:23:11 GMT
Are there any studies on test atmospheres other than simplistic studies showing that C02 absorbs in the IR band?
What about studies done over deserts where there is little water and plant vapours compared to studies done over the land where theses things are present to show the relative effects of none C02 greenhouse effects. For example it is common knowledge it gets cold at night in a desert for apparently well understood reasons:
I am inclined to think that C02 cannot have much of an influence during the day because the overwhelmingly massive energy from the sun must saturate the C02 so that it is emitting both upwards and downwards and since it is present in such tiny quanties this warmed C02 could not have much influence on the rest of the mass of the air
So it must be at night that C02 plays its main role? We know that once the sun has gone the heat of the day lingers. But we also know that on a clear night it becomes much colder and we know that C02 is present in clear nights or poor visibility nights. Obviously the C02 effect is a contribution rather than being a main effect.
There must be some studies done on this sort of thing to show how it plays out in the real world as measured in the atmosphere and in test atmospheres?
There must be a classic study i could be referred to to show the basic physics of this topic?
you are correct.
If the CO2 forcing hypothesis was true one place it would be apparent is in the night time temperatures in arid and desert areas with almost zero humidity. These night time temperatures should average higher because if there were any CO2 'radiative forcing' it would be more apparent at night as it slowed radiation and caused glc's 'downwelling Infra Red radiation' - more correctly scaterring of emitted radiation as soon as it was absorbed.
These experiments have been done in desert areas - and there was no indication of higher night time temperatures. (I am traveling but I can find the references). As with many other validation tests, the AGW hypothesis failed this one too.