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Feasibility Study For A Spaceborne Ozone/Aerosol Lidar SystemBecause ozone provides a shield against harmful ultraviolet radiation, determines the temperature profile in the stratosphere, plays important roles in tropospheric chemistry and climate, and is a health risk near the surface, changes in natural ozone layers at different altitudes and their global impact are being intensively researched. Global ozone coverage is currently provided by passive optical and microwave satellite sensors that cannot deliver high spatial resolution measurements and have particular limitations in the troposphere. Vertical profiling DIfferential Absorption Lidars (DIAL) have shown excellent range-resolved capabilities, but these systems have been large, inefficient, and have required continuous technical attention for long term operations. Recently, successful, autonomous DIAL measurements have been performed from a high-altitude aircraft (LASE - Lidar Atmospheric Sensing Experiment), and a space-qualified aerosol lidar system (LITE - Laser In-space Technology Experiment) has performed well on Shuttle. Based on the above successes, NASA and the Canadian Space Agency are jointly studying the feasibility of developing ORACLE (Ozone Research with Advanced Cooperative Lidar Experiments), an autonomously operated, compact DIAL instrument to be placed in orbit using a Pegasus class launch vehicle.
Document ID
20040110424
Acquisition Source
Langley Research Center
Document Type
Other
Authors
Campbell, Richard E. (NASA Langley Research Center Hampton, VA, United States)
Browell, Edward V. (NASA Langley Research Center Hampton, VA, United States)
Ismail, Syed (NASA Langley Research Center Hampton, VA, United States)
Dudelzak, Alexander E. (Canadian Space Agency Saint Hubert, Quebec, Canada)
Carswell, Allan I. (York Univ. Toronto, Ontario, Canada)
Ulitsky, Arkady (Optech, Inc. Toronto, Ontario, Canada)
Date Acquired
September 7, 2013
Publication Date
January 1, 1997
Subject Category
Meteorology And Climatology
Distribution Limits
Public
Copyright
Public Use Permitted.

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