Doppler-radar wind-speed measurements in tornadoes: A comparison of real and simulated spectra

Conference · Mon Mar 01 04:00:00 EST 1993

OSTI ID:10138227

Bluestein, H B; LaDue, J G; Stein, H; Speheger, D ^[1]; Unruh, W P ^[2]

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1. Oklahoma Univ., Norman, OK (United States)
2. Los Alamos National Lab., NM (United States)

Bluestein and Unruh have discussed the advantages of using a portable doppler radar to map the wind field in tornadoes. during the spring of 1991 a storm-intercept team from the University of Oklahoma (OU) collected data near five supercell tornadoes in Oklahoma and Kansas. Details about the 1-W, 3-cm, 5-deg half-power beamwidth, CW/FM-CW Doppler radar we used and the methods of data collection and analysis are found in Bluestein and Unruh and Bluestein et al. Using the portable radar, we approximately doubled in only one year the number of tornado spectra that had been collected over a period of almost 20 years by NSSL`s fixed-site Doppler radar. In this paper we will compare observed tornado wind spectra with simulated wind spectra (Zmic and Doviak 1975) in order to learn more about tornado structure.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10138227
• Report Number(s): LA-UR--93-639; CONF-9305139--1; ON: DE93008734; CNN: NSF Grant ATM-8902594
• Country of Publication: United States
• Language: English

Related Subjects

440800
47 OTHER INSTRUMENTATION
99 GENERAL AND MISCELLANEOUS
990000
DOPPLER EFFECT
GENERAL AND MISCELLANEOUS
MEASURING METHODS
MISCELLANEOUS INSTRUMENTATION
NOISE
RADAR
SPECTRA
TORNADOES
VELOCITY