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S.Bachmann

Zdr for chosen spectral coefficients in 5-7-2004, clear-air, day time, south wind, insects, clutter. S.Bachmann. Radial 1. Radial az. Radial N. one elevation scan. H V. Spectrum. az. - - Horizontal  Vertical. I Q. 128 pulses. Z dr. N = 1..360. Radial 1. Radial az.

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S.Bachmann

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  1. Zdr for chosen spectral coefficients in 5-7-2004, clear-air, day time, south wind, insects, clutter. S.Bachmann

  2. Radial 1 Radial az Radial N one elevation scan H V Spectrum az - - Horizontal  Vertical I Q 128 pulses Zdr N = 1..360

  3. Radial 1 Radial az Radial N Center of Spectral Coef. Spectral observation Estimate Spectral Coef SC=f(az, v) one elevation scan header H V Spectrum Window Window az - - Horizontal  Vertical G C F Get rid of DC I Q 128 pulses I ' Q' Zdr N = 1..360

  4. Radial 1 Radial az Radial N Sounding Center of Spectral Coef. Spectral observation Estimate Spectral Coef SC=f(az, v) one elevation scan header H V v, h) Spectrum Window az - - Horizontal  Vertical G C F Get rid of DC I Q 128 pulses I ' Q' Zdr N = 1..360

  5. Zdr for the original spectrum (all 128 pulses included in calculations) for the chosen spectral window (21 pulses), s.t. the center of spectral window assumes sin- azimuthal dependence for the chosen spectral window (21 pulses), s.t. the center is chosen in agreement with azimuthal and height dependence from sounding.

  6. all 128 pulses window 21 pulses original GSf GSf, DCf, f(h) GSf, DCf 0.5° 1.5° 2.5°

  7. 128, GSf window, GSf, DCf, f(h) window, GSf, DCf sounding gives v@h. High Zdr vanish at second layer (circled) - birds

  8. 180° 0.5° 1.5° 2.5° 4.5° Window(40-55) GCf, DCf

  9. Zdr window < Zdr 128 75..95 75..95 more Birds/insects/both? If Zdr birds (-1..4), insects (0..10)

  10. ρhv 1 0.5 0 δ 0

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