A New Look at the Upper Mesosphere From EOS MLS

HR: 17:00h
AN: A54B-05 [Abstracts]
TI: A New Look at the Upper Mesosphere From EOS MLS
AU: * Pumphrey, H C
EM: H.C.Pumphrey@ed.ac.uk
AF: The University of Edinburgh School of GeoSciences, Crew Building King's Buildings, Edinburgh, EH9 3JN United Kingdom
AU: Froidevaux, L
EM: lucien@mls.jpl.nasa.gov
AF: NASA Jet Propulsion Laboratory, mail stop 183-701, Jet Propulsion Laboratory 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Livesey, N J
A54B-05 AF: NASA Jet Propulsion Laboratory, mail stop 183-701, Jet Propulsion Laboratory 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Read, W G
A54B-05 AF: NASA Jet Propulsion Laboratory, mail stop 183-701, Jet Propulsion Laboratory 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Pickett, H M
A54B-05 AF: NASA Jet Propulsion Laboratory, mail stop 183-701, Jet Propulsion Laboratory 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Jimenez, C J
A54B-05 AF: The University of Edinburgh School of GeoSciences, Crew Building King's Buildings, Edinburgh, EH9 3JN United Kingdom
AU: Waters, J W
A54B-05 AF: NASA Jet Propulsion Laboratory, mail stop 183-701, Jet Propulsion Laboratory 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AB: The main science goals of EOS MLS are to study the stratosphere and upper troposphere. However, the instrument scans up to an altitude of over 92 km, providing information on a number of molecular species in the upper mesosphere. In many cases, the signals in this region are small and can lead to biases in the standard retrieval; radiance averages are explored here as an alternative analysis method. In this presentation, we examine briefly all of the species for which MLS produces an observable signal at 80 km: H₂O, CO, HCl, OH, HO₂, O₃. The seasonal cycles and day/night differences will be presented and compared with 2-D model output and earlier measurements, where these exist. The HCl data are the first daily global observations of the seasonal cycle of this species in this region of the atmosphere.
DE: 0340 Middle atmosphere: composition and chemistry
DE: 0341 Middle atmosphere: constituent transport and chemistry (3334)
DE: 3332 Mesospheric dynamics
DE: 3334 Middle atmosphere dynamics (0341, 0342)
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005