Origin of a tidal structure in the thermospheric O/N 2  ratio | Zendy

Balcerak Ernie | Zendy

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Origin of a tidal structure in the thermospheric O/N 2 ratio

Author(s) -

Balcerak Ernie

Publication year - 2011

Publication title -

eos, transactions american geophysical union

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.316

H-Index - 86

eISSN - 2324-9250

pISSN - 0096-3941

DOI - 10.1029/2011eo470013

Subject(s) - thermosphere , ionosphere , mesosphere , atmospheric sciences , physics , computational physics , atomic physics , geophysics , stratosphere

One recently recognized way of studying the ionospheric and thermospheric structure is through measurements of the column number density ratio of atomic oxygen to molecular nitrogen (O/N 2 ). Data from the Global Ultraviolet Imager on board the Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) satellite show that this ratio exhibits a tidal structure. Kil and Paxton found that the 135.6‐nanometer emission produced by the radiative recombination of the oxygen ion contributes to the retrieved O/N 2 ratio, and therefore the tidal structure in the O/N 2 ratio originates in the ionosphere, not the thermosphere. ( Geophysical Research Letters , doi:10.1029/2011GL049432, 2011)

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