computeQPECAPPI: Compute QPE from CAPPI.
In rijaf-iri/mtorwdata: Processing AWS and RADAR data from Meteo Rwanda

Description Usage Arguments Value CAPPI parameters QPE parameters Attenuation correction parameters Filter parameters

Compute QPE from CAPPI for single scan radar polar data.

computeQPECAPPI(
  url,
  dirOUT,
  start_time,
  end_time,
  cappi = list(method = "composite_altitude", pars = list(fun = "maximum", min_alt =
    1.7, max_alt = 15)),
  qpe = list(method = "RATE_Z", pars = list(alpha = 300, beta = 1.4, invCoef = FALSE)),
  dbz_thres = list(min = 20, max = 65),
  apply_cmd = TRUE,
  pia = NULL,
  filter = NULL,
  time_zone = "Africa/Kigali"
)

`url`	The URL of the server. Ex: "http://192.168.1.10:8080"
`dirOUT`	Full path to the directory to save the output
`start_time, end_time`	The start and end time same time zone as `time_zone`, format "YYYY-mm-dd HH:MM"
`cappi`	A named list of parameters to be used to create the CAPPI.
`qpe`	A named list of parameters to be used to compute the precipitation rate.
`dbz_thres`	A named list of the minimum and maximum reflectivity threshold. Default `dbz_thres = list(min = 20, max = 65)`
`apply_cmd`	Logical, apply clutter mitigation decision to the fields to use to compute the QPE. Default `TRUE`, applying CMD.
`pia`	A named list of parameters to be used to correct the attenuation. Default `NULL`, no correction performed.
`filter`	A named list of parameters to be used to filter the data. Default `NULL`, no filtering applied.
`time_zone`	the time zone of `start_time`, `end_time` and the output QPE. Options: "Africa/Kigali" or "UTC". Default "Africa/Kigali"

A netCDF files containing the precipitation rate and accumulation for a single radar scan saved under the folder dirOUT with a file name format "precip_YYYYmmddHHMMSS.nc", same time zone as time_zone.

cappi

qpe

pia

filter

rijaf-iri/mtorwdata documentation built on March 9, 2021, 6:36 a.m.