Dry Adiabiatic Lapse Rate

Dry Adiabiatic Lapse Rate - Dry Adiabiatic Lapse Rate...

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Dry Adiabiatic Lapse Rate Comparison of minor species in the terrestrial planets' atmospheres Water condenses at such moderate temperatures that the Earth and Mars' atmospheres contain only a little water. On Earth the water goes mainly into the oceans and the ice sheets. On Mars it is adsorbed onto soil grains and into ice in the northern polar regions. Both Earth and Mars are on average at one third saturation in the atmosphere. Venus is so hot all the water vapour is in the atmosphere, and some even combines with sulphur di- and tri-oxide to give Sulphuric Acid (H 2 SO 4 ) droplets at high altitude. On all three planets there is some dissociation of H 2 O to HO and O: H 2 O + hv --> HO + O The HO is highly reactive (going to sulphuric acid or destroying ozone). Atomic Oxygen and Ozone In the Eart Ozone In the Earth's upper atmosphere molecular oxygen is broken down to atomic oxygen: O 2 + hv --> O + O followed at lower altitudes by O + O 2 --> O 3 On Venus and Mars you get some ozone production from the CO 2 : CO 2 + hv
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