Accession Number : ADA115447

Title :   Field Program Operations - Turbulence and Gust Front Studies.

Descriptive Note : Final rept. Mar-Dec 80,

Corporate Author : NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NORMAN OK NATIONAL SEVERE STORMS LAB

Personal Author(s) : Lee,J T ; Doviak,R J

PDF Url : ADA115447

Report Date : Nov 1981

Pagination or Media Count : 43

Abstract : The 1980 Spring Observation Program extended from April 15 to June 19 at the National Severe Storms Laboratory, Norman, Oklahoma. Aircraft, rawinsonde network, mesoscale surface network, low-level wind shear alert system at Will Rogers World Airport, 444 m instrumented tower and satellite observations augmented a conventional weather radar and a new, dual Doppler weather radar system to obtain concurrent data on weather hazards to aircraft. Storm days and data acquired are detailed. An objective for the spring program was to determine the characteristics and detectability of turbulence, wind shear and other aircraft operational weather hazards using indirect (radar) probes. The South Dakota School of Mines T-28 aircraft and the National Aeronautics and Space Administration's F-106 aircraft made thunderstorm penetrations during Doppler radar and lightning operations. Data obtained are discussed, and the analysis of a turbulence case and two gust front cases are presented. These indicate the Doppler radar's potential use to detect and dimensionalize aviation weather hazards both in-cloud and in optically clear air. These studies and additional ones now in progress will provide material for guideline development as to siting and uses of the Next Generation Radar (NEXRAD) in aviation-related situations. (Author)

Descriptors :   *Turbulence, *Gusts, *Fronts(Meteorology), Wind shear, Thunderstorms, Meteorological instruments, Ground level, Low altitude, Airborne, Meteorological radar, Doppler radar, Radar reflections, Research facilities, Oklahoma

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE