Other
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa41a0284m&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SA41A-0284
Other
3332 Mesospheric Dynamics, 3360 Remote Sensing, 6969 Remote Sensing, 7954 Magnetic Storms (2788), 9310 Antarctica (4207)
Scientific paper
We show how carbon monoxide (CO) can be used as a tracer of mesospheric neutral wind speeds, by measuring small Doppler shifts in its rotational emission spectrum. Since the altitude range we are most sensitive to is generally inaccessible to many other measurement techniques, this fills a significant experimental gap. Using this method, high-resolution ground-based measurements of mesospheric CO taken from the AST/RO sub-millimeter telescope, located at Amundsen-Scott South Pole Station have been used to calculate wind speeds and column densities over the Antarctic from 2002 to 2005. For more information see Burrows et al. JGR-Atmospheres doi:10.1029/2006JD007993. In addition, the 2→ 1 rotational transition of O18O has been measured and used as a tracer of the mesospheric magnetic field over the Antarctic. We demonstrate how the Zeeman splitting of this molecule was used to measure the Earth's magnetic field during the geomagnetic storm of January 2003.
Brown Jonathan M.
Burrows S. M.
Martin Christopher L.
Roberts E. A.
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