NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Airborne Lidar measurements of the atmospheric pressure profile with tunable Alexandrite lasersThe first remote measurements of the atmospheric pressure profile made from an airborne platform are described. The measurements utilize a differential absorption lidar and tunable solid state Alexandrite lasers. The pressure measurement technique uses a high resolution oxygen A band where the absorption is highly pressure sensitive due to collision broadening. Absorption troughs and regions of minimum absorption were used between pairs of stongly absorption lines for these measurements. The trough technique allows the measurement to be greatly desensitized to the effects of laser frequency instabilities. The lidar system was set up to measure pressure with the on-line laser tuned to the absorption trough at 13147.3/cm and with the reference laser tuned to a nonabsorbing frequency near 13170.0/cm. The lidar signal returns were sampled with a 200 range gate (30 vertical resoltion) and averaged over 100 shots.
Document ID
19870000849
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Korb, C. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schwemmer, G. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dombrowski, M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Milrod, J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Walden, H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
August 1, 1986
Publication Information
Publication: NASA. Langley Research Center 13th International Laser Radar Conference
Subject Category
Lasers And Masers
Accession Number
87N10282
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available