pyrad.proc.process_dealias_region_based#

pyrad.proc.process_dealias_region_based(procstatus, dscfg, radar_list=None)[source]#

Dealiases the Doppler velocity field using a region based algorithm

Parameters:

  • procstatus (int) – Processing status: 0 initializing, 1 processing volume, 2 post-processing

  • dscfg (dictionary of dictionaries) –

    data set configuration. Accepted Configuration Keywords:

    datatype : string. Dataset keyword
    The input data type, must contain,
    "V" or "Vc"
interval_splits : int, optional
    Number of segments to split the nyquist interval into when finding
    regions of similar velocity.  More splits creates a larger number
    of initial regions which takes longer to process but may result in
    better dealiasing.  The default value of 3 seems to be a good
    compromise between performance and artifact free dealiasing. This
    value is not used if the interval_limits parameter is not None.
skip_between_rays, skip_along_ray : int, optional
    Maximum number of filtered gates to skip over when joining
    regions, gaps between region larger than this will not be
    connected. Parameters specify the maximum number of filtered gates
    between and along a ray. Set these parameters to 0 to disable
    unfolding across filtered gates.
centered : bool, optional
    True to apply centering to each sweep after the dealiasing
    algorithm so that the average number of unfolding is near 0. False
    does not apply centering which may results in individual sweeps
    under or over folded by the nyquist interval.
nyquist_vel : float, optional
    Nyquist velocity of the aquired radar velocity.
    Usually this parameter is provided in the
    Radar object intrument_parameters. If it is not available it can
    be provided as a keyword here.

  • radar_list (list of Radar objects) – Optional. list of radar objects

Returns:

  • new_dataset (dict) – dictionary containing the output field “dealV” or “dealVc” (if Vc was provided)

  • ind_rad (int) – radar index