NDLI: Turbulence and mountain wave conditions observed with an airborne 2-micron lidar (Document No: 20070003598)

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Turbulence and mountain wave conditions observed with an airborne 2-micron lidar (Document No: 20070003598)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ashburn Sr., Chris Ehernberger, Jack Teets Jr., Edward H. Bogue, Rodney
Copyright Year	2007
Description	Joint efforts by the National Aeronautics and Space Administration (NASA), the Department of Defense, and industry partners are enhancing the capability of airborne wind and turbulence detection. The Airborne Coherent Lidar for Advanced In-Flight Measurements (ACLAIM) was flown on three series of flights to assess its capability over a range of altitudes, air mass conditions, and gust phenomena. This paper describes the observation of mountain waves and turbulence induced by mountain waves over the Tehachapi and Sierra Nevada mountain ranges in southern California by lidar onboard the NASA Airborne Science DC-8 airplane. The examples in this paper compare lidar-predicted mountain waves and wave-induced turbulence to subsequent aircraft-measured true airspeed. Airplane acceleration data is presented describing the effects of the wave-induced turbulence on the DC-8 airplane. Highlights of the lidar-predicted airspeed from the two flights show increases of 12 m/s at the mountain wave interface and peak-to-peak airspeed changes of 10 m/s and 15 m/s in a span of 12 s in moderate turbulence.
File Size	1913957
Page Count	9
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20070003598
Archival Resource Key	ark:/13960/t0ms8pv57
Language	English
Publisher Date	2007-01-01
Access Restriction	Open
Subject Keyword	Avionics And Aircraft Instrumentation Nasa Programs Airspeed Airborne Equipment Turbulence Air Masses Detection Sierra Nevada Mountains Ca Optical Radar Radar Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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