Page "Schumann resonances" Paragraph 28

According to the effective work made by the Upper Tropospheric Water Vapor (( UTWV )), we should highlight that the percentage of UTWV in normal condition of the Air mass can be meauserd as a minimal quantity, so that its influence can be considered very very low ; in fact the higher percentage of it can be only found in the lower Tropspheric layers.

But in the case of a high quantity of UTWV in the highest level of Troposphere, due to a warmer air mass of atlantic origins, for istance, the Water vapor, due to the low air temperature (( about minus 60 Degrees )) it turns into ice cristal, becoming clouds as Cirrus or Cirrus Stratus: no Water vapour exists as gas with so low temperature.

So, we can say that the affirmation that Water vapor interacts with cloud, can be considered wrong as the clouds both those of low level of (( Atmosphere )) and those of higher levels of it are made of condensed or cristallised Water Vapor.