Physics
Scientific paper
Jan 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30b..54r&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 2, pp. 54-1, CiteID 1082, DOI 10.1029/2002GL016537
Physics
6
Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Atmospheric Composition And Structure: Middle Atmosphere-Constituent Transport And Chemistry (3334), Meteorology And Atmospheric Dynamics: Climatology (1620), Meteorology And Atmospheric Dynamics: Mesospheric Dynamics, Meteorology And Atmospheric Dynamics: Remote Sensing
Scientific paper
We present the annual variation of the distribution of neutral iron of the low-latitude mesopause region measured at the Arecibo Observatory using resonance fluorescence lidar. A comparison was made between our low-latitude measurements and similar mid-and high-latitude observations of Fe column abundance, centroid height, and RMS width of the layer. We find that the annual variation of the height and width of the layer are essentially anti-correlated with previous measurements, while the column abundance lags its midlatitude counterpart by roughly three months. We suggest that the latitudinal differences in Fe layer properties result from variations in the distribution of mesospheric ozone and O2, which in turn affect the iron chemistry at the two latitudes.
Raizada Shikha
Tepley Craig A.
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