Computer Science – Sound
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agusmsa21b..06p&link_type=abstract
American Geophysical Union, Spring Meeting 2009, abstract #SA21B-06
Computer Science
Sound
0310 Airglow And Aurora, 0342 Middle Atmosphere: Energy Deposition (3334), 1650 Solar Variability (7537), 2162 Solar Cycle Variations (7536), 3334 Middle Atmosphere Dynamics (0341, 0342)
Scientific paper
This research is focused on measurements to ascertain trends in the OH infrared airglow column emission rates as observed from SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) aboard the NASA/LaRC TIMED satellite. Particularly, we are examining trends over a seven-year period corresponding to a half solar cycle from 2002 up to 2009. Statistical methods have been employed to calculate averages of global daily emissions in the form of column emission rates. These daily averages are concatenated and then analyzed to reveal periodic trends over the time period in review. We also explore the possible correlation with solar activity as represented both by the Kp index and sunspot counts. Initial analysis suggests a definite downward trend from 2002 through 2008, which parallels the current solar cycle activity. Various periodicities of shorter are seen in the analysis, in addition to the pronounced 10-11 year solar cycle periodic trend. Further analysis of these data should make it possible for us to better understand the mechanics responsible for OH column emission changes with time.
Baker David John
Mlynczak Martin G.
Pound A. E.
Russell Joellen
Willis James J.
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