HR: 1340h
AN: A13D-1501    [Abstracts]
TI: Selection and Optimization of Oxygen Lines Used for LIDAR Measurements of Surface Pressure
AU: * Hager, J S
EM: shager@aer.com
AF: Atmospheric and Environmental Research, Inc., 131 Hartwell Avenue, Lexington, MA 02421, United States
AU: Zaccheo, S
EM: szaccheo@aer.com
AF: Atmospheric and Environmental Research, Inc., 131 Hartwell Avenue, Lexington, MA 02421, United States
AU: Snell, N
EM: hsnell@aer.com
AF: Atmospheric and Environmental Research, Inc., 131 Hartwell Avenue, Lexington, MA 02421, United States
AU: Dobbs, M
EM: Mike.Dobbs@itt.com
AF: ITT Space Systems, 1919 West Cook Road, Fort Wayne, IN 46801, United States
AB: AER and ITT have developed a testbed to simulate differential absorption lidar (DIAL) measurements from air- and space-borne platforms. This testbed provides realistic simulations of lidar measurements for a full suite of atmospheric conditions, including changes in the temperature and water vapor profiles along the line-of-sight. One application of this testbed is the rapid analysis of a variety of different oxygen lines in order to optimize the performance of a DIAL system for measuring atmospheric surface pressure. Of the two main visible oxygen bands in the earth's atmosphere, the "singlet-delta" oxygen band (7882 cm-1) and the "A-band" oxygen band (13 121 cm-1), to date only the A-band has been utilized for atmospheric surface pressure retrievals. This presentation will describe a comparison of DIAL pressure measurements using the two oxygen bands. We also discuss the impact of laser linewidth and the ability to use wide bandwidth laser lines on temperature insensitive absorption features. These results from our testbed, in conjunction with open path experiments, demonstrate that relatively wide bandwidth lasers can be used effectively to measure atmospheric surface pressure.
DE: 0394 Instruments and techniques
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting