Aeronomy of the lower atmosphere of Mars | Zendy

Hunten Donald M. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Aeronomy of the lower atmosphere of Mars

Author(s) -

Hunten Donald M.

Publication year - 1974

Publication title -

reviews of geophysics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 8.087

H-Index - 156

eISSN - 1944-9208

pISSN - 8755-1209

DOI - 10.1029/rg012i003p00529

Subject(s) - aeronomy , photodissociation , atmospheric sciences , atmosphere (unit) , mars exploration program , ozone , atmosphere of mars , astrobiology , mixing ratio , atmospheric chemistry , environmental science , martian , meteorology , chemistry , photochemistry , physics

Recent models and observations relevant to Martian aeronomy are discussed. The stability of the CO 2 atmosphere against photodissociation into CO and O 2 has finally been accounted for. The basic mechanism is catalysis by odd hydrogen, aided by very rapid downward mixing, photolysis of H 2 O 2 , or some combination. The low abundance of ozone at low latitudes is readily explained, and its higher abundance in cold regions is accounted for by the freezing out of H 2 O, H 2 O 2 , and possibly HO 2 . The system seems likely to be unstable, and major changes of the CO and O 2 abundances may be expected on a time scale of 1 year.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research