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Flight Testing of the TWiLiTE Airborne Molecular Doppler LidarIn September, 2009 the TWiLiTE (Tropospheric Wind Lidar Technology Experiment) direct detection Doppler lidar was integrated for engineering flight testing on the NASA ER-2 high altitude aircraft. The TWiI,iTE Doppler lidar measures vertical profiles of wind by transmitting a short ultraviolet (355 nm) laser pulse into the atmosphere, collecting the laser light scattered back to the lidar by air molecules and measuring the Doppler shifted frequency of that light. The magnitude of the Doppler shift is proportional to the wind speed of the air in the parcel scattering the laser light. TWiLiTE was developed with funding from the NASA Earth Science Technology Office (ESTO) Instrument Incubator Program (11P). The primary objectives of the TWiLiTE program are twofold: 1) to advance the development of key technologies and subsystems critical for a future space based Global 3-1) Wind Mission, as recommended by the National Research Council in the recent Decadal Survey for Earth Science [1] and 2) to develop, for the first time, a fully autonomous airborne Doppler lidar and to demonstrate tropospheric wind profile measurements from a high altitude downward looking, moving platform to simulate spaceborne measurements. In this paper we will briefly describe the instrument followed by a discussion of the results from the 2009 engineering test flights
Document ID
20100026400
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Gentry, Bruce
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
McGill, Matthew
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Machan, Roman
(Science Systems and Applications, Inc. Lanham, MD, United States)
Reed, Daniel
(Science Systems and Applications, Inc. Lanham, MD, United States)
Cargo, Ryan
(Science Systems and Applications, Inc. Lanham, MD, United States)
Wilkens, David J.
(Science Systems and Applications, Inc. Lanham, MD, United States)
Hart, William
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Yorks, John
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Scott, Stan
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wake, Shane
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hardesty, Michael
(National Oceanic and Atmospheric Administration Boulder, CO, United States)
Brewer, Alan
(National Oceanic and Atmospheric Administration Boulder, CO, United States)
Date Acquired
August 24, 2013
Publication Date
July 2, 2010
Subject Category
Communications And Radar
Meeting Information
Meeting: International Laser Radiation Conference
Location: Saint Petersburg
Country: Russia
Start Date: July 2, 2010
End Date: July 10, 2010
Sponsors: International Radiation Commission
Distribution Limits
Public
Copyright
Public Use Permitted.
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