Editorial Type:
Article
Article Type:
Research Article

Analysis and Correction of Dual PRF Velocity Data

Iwan Holleman Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands

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Hans Beekhuis Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands

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Print Publication:
01 Apr 2003
DOI:
https://doi.org/10.1175/1520-0426(2003)20<443:AACODP>2.0.CO;2
Page(s):
443–453
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Abstract

The dual pulse repetition frequency (dual PRF) technique for extension of the unambiguous velocity interval is available on many operational Doppler weather radars. Radial velocity data obtained from a C-band Doppler radar running in dual PRF mode have been analyzed quantitatively. The standard deviation of the velocity estimates and the fraction of dealiasing errors are extracted and related using a simple model. A postprocessing algorithm for dual PRF velocity data, which removes noise and corrects dealiasing errors, has been developed and tested. It is concluded that the algorithm is very efficient and produces high quality velocity data.

Corresponding author address: Dr. Iwan Holleman, Royal Netherlands Meteorological Institute (KNMI), P.O. Box 201, NL AE 3730 De Bilt, Netherlands. Email: holleman@knmi.nl

Abstract

The dual pulse repetition frequency (dual PRF) technique for extension of the unambiguous velocity interval is available on many operational Doppler weather radars. Radial velocity data obtained from a C-band Doppler radar running in dual PRF mode have been analyzed quantitatively. The standard deviation of the velocity estimates and the fraction of dealiasing errors are extracted and related using a simple model. A postprocessing algorithm for dual PRF velocity data, which removes noise and corrects dealiasing errors, has been developed and tested. It is concluded that the algorithm is very efficient and produces high quality velocity data.

Corresponding author address: Dr. Iwan Holleman, Royal Netherlands Meteorological Institute (KNMI), P.O. Box 201, NL AE 3730 De Bilt, Netherlands. Email: holleman@knmi.nl

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  • Bergen, W. R., and Albers S. C. , 1988: Two- and three-dimensional de-aliasing of Doppler radar velocities. J. Atmos. Oceanic Technol., 5 , 305–319.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Bluestein, H. B., and Pazmany A. L. , 2000: Observations of tornadoes and other convective phenomena with a mobile, 3-mm wavelength, Doppler radar: The spring 1999 field experiment. Bull. Amer. Meteor. Soc., 81 , 2939–2951.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Browning, K. A., and Wexler R. , 1968: The determination of kinematic properties of a wind field using Doppler radar. J. Appl. Meteor., 7 , 105–113.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Chong, M., and Coauthors. 2000: Real-time wind synthesis from Doppler radar observations during the Mesoscale Alpine Programme. Bull. Amer. Meteor. Soc., 81 , 2953–2962.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Collins, W. G., 2001: The quality control of velocity azimuth display (VAD) winds at the National Centers for Environmental Prediction. Preprints, 11th Symp. on Meteorological Observations and Instrumentation, Albuquerque, NM, Amer. Meteor. Soc., 317–320.

    • Search Google Scholar
    • Export Citation

  • Dazhang, T., Geotis S. G. , Passarelli R. E. Jr., Hansen A. L. , and Frush C. L. , 1984: Evaluation of an alternating-PRF method for extending the range of unambiguous Doppler velocity. Preprints, 22d Conf. on Radar Meteorology, Zurich, Switzerland, Amer. Meteor. Soc., 523–527.

    • Search Google Scholar
    • Export Citation

  • Desrochers, P. R., 1989: A reliable method for real-time velocity unfolding. Preprints, 24th Conf. on Radar Meteorology, Tallahassee, FL, Amer. Meteor. Soc., 415–418.

    • Search Google Scholar
    • Export Citation

  • Doviak, R. J., and Sirmans D. , 1973: Doppler radar with polarization diversity. J. Atmos. Sci., 30 , 737–738.

  • Doviak, R. J., and Zrnić D. S. , 1993: Doppler Radar and Weather Observations. 2d ed. Academic Press, 562 pp.

  • Eilts, M. D., and Smith S. D. , 1990: Efficient dealiasing of Doppler velocities using local environment constraints. J. Atmos. Oceanic Technol., 7 , 118–128.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Gonzalez, R. C., and Woods R. E. , 1992: Digital Image Processing. Addison-Wesley, 716 pp.

  • Hennington, L., 1981: Reducing the effects of Doppler radar ambiguities. J. Appl. Meteor., 20 , 1543–1546.

  • Hildebrand, P. H., and Coauthors. 1996: The ELDORA/ASTRAIA airborne Doppler weather radar: High-resolution observations from TOGA COARE. Bull. Amer. Meteor. Soc., 77 , 213–232.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Hondl, K. D., and Eilts M. D. , 1993: Evaluation of Doppler velocity dealiasing techniques for low-Nyquist velocity data. Preprints, 26th Conf. on Radar Meteorology, Norman, OK, Amer. Meteor. Soc., 59–61.

    • Search Google Scholar
    • Export Citation

  • Jing, Z., and Wiener G. , 1993: Two-dimensional dealiasing of Doppler velocities. J. Atmos. Oceanic Technol., 10 , 798–808.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Jorgensen, D. P., Shepherd T. R. , and Goldstein A. S. , 2000: A dual-pulse repetition frequency scheme for mitigating velocity ambiguities of the NOAA P-3 airborne Doppler radar. J. Atmos. Oceanic Technol., 17 , 585–594.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Lindskog, M., Järvinen H. , and Michelson D. B. , 2000: Assimilation of radar radial wind in the HIRLAM 3D-Var. Phys. Chem. Earth B, 25 , 1243–1250.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • May, P. T., 2001: Mesocyclone and microburst signature distortion with dual PRT radars. J. Atmos. Oceanic Technol., 18 , 1229–1233.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • May, P. T., and Joe P. , 2001: The production of high quality Doppler velocity fields for dual PRT weather radar. Preprints, 30th Conf. on Radar Meteorology, Munich, Germany, Amer. Meteor. Soc., 286–288.

    • Search Google Scholar
    • Export Citation

  • Meischner, P., Collier C. , Illingworth A. , Joss J. , and Randeu W. , 1997: Advanced weather radar systems in Europe: The COST 75 action. Bull. Amer. Meteor. Soc., 78 , 1411–1430.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Merritt, M. W., 1984: Automatic velocity de-aliasing for real-time applications. Preprints, 22d Conf. on Radar Meteorology, Zurich, Switzerland, Amer. Meteor. Soc., 528–533.

    • Search Google Scholar
    • Export Citation

  • Press, W. H., Teukolsky S. A. , Vetterling W. T. , and Flannery B. P. , 1992: Numerical Recipes in C: The Art of Scientific Computing. 2d ed. Cambridge University Press, 994 pp.

    • Search Google Scholar
    • Export Citation

  • Ray, P. S., and Ziegler C. , 1977: De-aliasing first-moment Doppler estimates. J. Appl. Meteor., 16 , 563–564.

  • Sachidananda, M., and Zrinć D. S. , 2000: Clutter filtering and spectral moment estimation for Doppler weather radars using staggered pulse repetition time (PRT). J. Atmos. Oceanic Technol., 17 , 323–331.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • Serafin, R. J., and Wilson J. W. , 2000: Operational weather radar in the United States: Progress and opportunity. Bull. Amer. Meteor. Soc., 81 , 501–518.

    • Crossref
    • Search Google Scholar
    • Export Citation

  • SIGMET, 1998: RVP6 Doppler signal processor user's manual. Sigmet, Westford, MA, 204 pp.

  • Sirmans, D., Zrnić D. , and Bumgarner B. , 1976: Extension of maximum unambiguous Doppler velocity by use of two sampling rates. Preprints, 17th Conf. on Radar Meteorology, Seattle, WA, Amer. Meteor. Soc., 23–28.

    • Search Google Scholar
    • Export Citation

  • Waldteufel, P., and Corbin H. , 1979: On the analysis of single-Doppler radar data. J. Appl. Meteor., 18 , 532–542.

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