			15min:

TEMPERATURE DEPENDENCE OF AIR-BROADENED LINE WIDTHS AND SHIFTS OF WATER AT 6 µm.

R. A. TOTH, L. R. BROWN, Jet Propulsion Laboratory, California Institute of Technology, Pasadena,CA 91109; M. A. H. SMITH, NASA Langley Research Center, Hampton, VA 23681; V. MALATHY DEVI, D. CHRIS BENNER, The College of William and Mary, Williamsburg, VA 23187; AND M. DULICK, National Solar Observatory, Tucson, AZ 85726.

Air-broadened half-widths and pressure-induced frequency shifts of water vapor were derived from laboratory measurements using the McMath-Pierce Fourier transform spectrometer located at Kitt Peak. The observations were obtained at gas sample temperatures ranging from sim 241 K to sim 388 K for rotational transitions in the (000)-(000), (010)-(000), and (020)-(010) bands of water. Width and shift coefficients were determined for sim 500 lines, and the temperature dependence of these coefficients was determined for most of the transitions measured.