All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 118 21 2
PDF Downloads 28 11 0

Raman Lidar Profiling of Atmospheric Water Vapor: Simultaneous Measurements with Two Collocated Systems

J. E. M. Goldsmith
Search for other papers by J. E. M. Goldsmith in
Current site
Google Scholar
PubMed
Close
,
Scott E. Bisson
Search for other papers by Scott E. Bisson in
Current site
Google Scholar
PubMed
Close
,
Richard A. Ferrare
Search for other papers by Richard A. Ferrare in
Current site
Google Scholar
PubMed
Close
,
Keith D. Evans
Search for other papers by Keith D. Evans in
Current site
Google Scholar
PubMed
Close
,
David N. Whiteman
Search for other papers by David N. Whiteman in
Current site
Google Scholar
PubMed
Close
, and
S. H. Melfi
Search for other papers by S. H. Melfi in
Current site
Google Scholar
PubMed
Close
Full access

Raman lidar is a leading candidate for providing the detailed space- and time-resolved measurements of water vapor needed by a variety of atmospheric studies. Simultaneous measurements of atmospheric water vapor are described using two collocated Raman lidar systems. These lidar systems, developed at the NASA/Goddard Space Flight Center and Sandia National Laboratories, acquired approximately 12 hours of simultaneous water vapor data during three nights in November 1992 while the systems were collocated at the Goddard Space Flight Center. Although these lidar systems differ substantially in their design, measured water vapor profiles agreed within 0.15 g kg−1 between altitudes of 1 and 5 km. Comparisons with coincident radiosondes showed all instruments agreed within 0.2 g kg−1 in this same altitude range. Both lidars also clearly showed the advection of water vapor in the middle troposphere and the pronounced increase in water vapor in the nocturnal boundary layer that occurred during one night.

*Sandia National Laboratories, Livermore, California.

+Hughes STX Corporation, NASA/Goddard Space Flight Center, Greenbelt, Maryland.

** NASA/Goddard Space Flight Center, Greenbelt, Maryland.

Corresponding author address: J.E.M. Goldsmith, Sandia National Laboratories, Livermore, CA 94551-0969.

Raman lidar is a leading candidate for providing the detailed space- and time-resolved measurements of water vapor needed by a variety of atmospheric studies. Simultaneous measurements of atmospheric water vapor are described using two collocated Raman lidar systems. These lidar systems, developed at the NASA/Goddard Space Flight Center and Sandia National Laboratories, acquired approximately 12 hours of simultaneous water vapor data during three nights in November 1992 while the systems were collocated at the Goddard Space Flight Center. Although these lidar systems differ substantially in their design, measured water vapor profiles agreed within 0.15 g kg−1 between altitudes of 1 and 5 km. Comparisons with coincident radiosondes showed all instruments agreed within 0.2 g kg−1 in this same altitude range. Both lidars also clearly showed the advection of water vapor in the middle troposphere and the pronounced increase in water vapor in the nocturnal boundary layer that occurred during one night.

*Sandia National Laboratories, Livermore, California.

+Hughes STX Corporation, NASA/Goddard Space Flight Center, Greenbelt, Maryland.

** NASA/Goddard Space Flight Center, Greenbelt, Maryland.

Corresponding author address: J.E.M. Goldsmith, Sandia National Laboratories, Livermore, CA 94551-0969.
Save