HR: 11:25h
AN: SA41C-05    [PDF]
TI: Mesospheric Fe Layers Observed at the South Pole and Rothera by a Lidar
AU: Gardner, C S
EM: cgardner@uillinois.edu
AF: University of Illinois at Urbana-Champaign, 1308 West Main Street, Urbana, IL 61801 United States
AU: * Chu, X
EM: xchu@uiuc.edu
AF: University of Illinois at Urbana-Champaign, 1308 West Main Street, Urbana, IL 61801 United States
AU: Espy, P J
EM: PJE@bas.ac.uk
AF: British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET United Kingdom
AU: Nott, G J
EM: GNO@south.nerc-bas.ac.uk
AF: British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET United Kingdom
AU: Diettrich, J C
EM: jadi@bas.ac.uk
AF: British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET United Kingdom
AU: Plane, J M
EM: J.Plane@uea.ac.uk
AF: University of East Anglia, School of Enviornmental Sciences, Norwich, NR4 7TJ United Kingdom
AU: Murray, B J
EM: B.Murray@uea.ac.uk
AF: University of East Anglia, School of Enviornmental Sciences, Norwich, NR4 7TJ United Kingdom
AB: Recently, the University of Illinois Fe Boltzmann temperature lidar was moved from the South Pole to Rothera (67.5$\deg$N, 68$\deg$W), Antarctica. The normal and sporadic Fe layers were observed at both locations. A few meteor trails were also recorded at Rothera in January 2003. We characterize the Fe layers at both locations and make a detail comparison. The summertime Fe layer at Rothera has higher number density and a lower peak altitude compared to the Fe layer at the South Pole. These features are most likely due to the temperature difference between the two locations, as observed by the lidar. We present the observations and compare them with numerical models of the Fe layer.
DE: 0322 Constituent sources and sinks
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0341 Middle atmosphere--constituent transport and chemistry (3334)
DE: 0394 Instruments and techniques
DE: 1640 Remote sensing
SC: SPA - Aeronomy [SA]
MN: 2003 Fall Meeting