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F 2‐region atmospheric gravity waves due to high‐power HF heating and subauroral polarization streams
Author(s) -
Mishin E.,
Sutton E.,
Milikh G.,
Galkin I.,
Roth C.,
Förster M.
Publication year - 2012
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2012gl052004
Subject(s) - thermosphere , substorm , ionosphere , polarization (electrochemistry) , geophysics , physics , gravitational wave , atmospheric sciences , environmental science , plasma , astronomy , magnetosphere , quantum mechanics , chemistry
We report the first evidence of atmospheric gravity waves (AGWs) generated in the F 2 region by high‐power HF heating and subauroral polarization streams. Data come from the CHAMP and GRACE spacecraft overflying the High‐frequency Active Auroral Research Program (HAARP) heating facility. These observations facilitate a new method of studying the ionosphere‐thermosphere coupling in a controlled fashion by using various HF‐heating regimes. They also reveal the subauroral F 2 region to be a significant source of substorm AGWs, in addition to the well‐known auroral E region.