HR: 17:45h
AN: A12E-08    [PDF]
TI: The High Resolution Dynamics Limb Sounder (HIRDLS) Validation Plan
AU: * Kinnison, D
EM: dkin@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Gille, J
EM: gille@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Barnett, J
EM: j.barnett1@physics.ox.ac.uk
AF: Oxford University, Department of Physics Clarendon Laboratory Oxford University Parks Road, Oxford, OX1 3PU United Kingdom
AU: Alexander, J
EM: alexand@cora.nwra.com
AF: Colorado Research Associates, 3380 Mitchell Lane, Boulder, CO 80301 United States
AU: Avallone, L
EM: avallone@lasp.colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University of Colorado Campus Box 392, Boulder, CO 80309-0392 United States
AU: Coffey, M
EM: coffey@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Eden, T
EM: teden@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Gettelman, A
EM: andrew@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Khosravi, R
EM: rashid@ucar.e
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Lambert, A
EM: alambert@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Lee, H
EM: halee@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Lyjak, L
EM: lvl@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Massie, S
EM: massie@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Nardi, B
EM: nardi@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Randall, C
EM: randall@lasp.colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University of Colorado Campus Box 392, Boulder, CO 80309-0392 United States
AU: Randel, W
EM: randel@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Yudin, V
EM: vyudin@ucar.edu
AF: National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AB: HIRDLS is an infrared limb-scanning radiometer designed to sound the upper troposphere, stratosphere, and mesosphere to determine temperature; the concentrations of O3, H2O, CH4, N2O, NO2, HNO3, N2O5, ClONO2, CFC11, CFC12, and aerosols; and the locations of polar stratospheric clouds and cloud tops. HIRDLS will obtain distributions of constituents with horizontal and vertical resolution superior to that previously obtained. The vertical resolution is approximately 1.2 km. The horizontal resolution is tunable depending on science and validation needs. Typical scan modes will have 5 x 5 degrees global coverage in a 12 hour period. Special scan modes are available for regional coverage with a horizontal resolution of approximately 1 x 1 degrees. The overall validation goals are to provide an assessment of the uncertainties of each HIRDLS data product. For this presentation, HIRDLS validation priorities and challenges will be discussed in conjunction with available correlative data. The importance of temperature, O3, and H2O sondes and lidar data will be discussed, with gaps in current measurement frequency and distributions highlighted. Special attention will be focused on the planned NASA aircraft campaigns (e.g., INTEX E, W; TC4, and POLAR). The need for aircraft data for validation of gravity wave structure will be shown. The inclusion of heavy lift balloons (e.g., for Mk IV) will be emphasized, especially for validation of correlative data where stratospheric distributions are limited (e.g., ClONO2, N2O5, and HNO3). The value of cross comparisons between HIRDLS and the other Aura instruments, along with available occultation and other limb viewing instruments will be outlined. The role of 3-D chemical transport models driven with analyzed meteorological fields for zero order validation, along with the use of chemical data assimilation techniques will also be discussed.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0341 Middle atmosphere--constituent transport and chemistry (3334)
DE: 0365 Troposphere--composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting