RainRetrievalMinMaxRSL: Function for path-averaged rainfall estimation using...

In overeem11/RAINLINK: Retrieval algorithm for rainfall mapping from microwave links in a cellular communication network.

Function for path-averaged rainfall estimation using microwave links.

Description

Function for path-averaged rainfall estimation using microwave links. Maximum and minimum path-averaged rainfall intensites are computed in subfunction “MinMaxRSLToMeanR”, where a fixed correction factor is applied to remove wet antenna attenuation.

Works for a sampling strategy where minimum and maximum received signal powers are provided, and the transmitted power levels are constant.

Also works for a sampling strategy where instantaneous transmitted and received signal levels are obtained. In case of instantaneous signal levels, it does not matter whether transmitted power levels vary or are constant. The only requirement is that the input data for RAINLINK needs some preprocessing. See ”ManualRAINLINK.pdf” for instructions.

Also works for a sampling strategy where average transmitted and received signal levels are obtained. In case of average signal levels, it does not matter whether transmitted power levels vary or are constant. The only requirement is that the input data for RAINLINK needs some preprocessing. See ”ManualRAINLINK.pdf” for instructions.

Usage

RainRetrievalMinMaxRSL(
  Aa = 2.3,
  alpha = 0.33,
  Data,
  kRPowerLawDataH,
  kRPowerLawDataV,
  PmaxCor,
  PminCor,
  Pref
)

Arguments

Aa	Wet antenna attenuation correction A_{\mbox{a}} (dB).
alpha	Coefficient (\alpha) determining contribution of minimum and maximum path-averaged rainfall intensity to mean path-averaged rainfall intensity (-).
Data	Data frame with microwave link data.
kRPowerLawDataH	Values of coefficients a and b employed to convert specific attenuation to path-averaged rainfall intensity for a range of microwave frequencies. For horizontally polarized radiation.
kRPowerLawDataV	Values of coefficients a and b employed to convert specific attenuation to path-averaged rainfall intensity for a range of microwave frequencies. For vertically polarized radiation.
PmaxCor	Data frame with corrected maximum received powers (dB).
PminCor	Data frame with corrected minimum received powers (dB).
Pref	Reference level (dB).

Value

Mean path-averaged rainfall intensity (mm h^{-1}).

Author(s)

Aart Overeem & Hidde Leijnse & Lotte de Vos

References

”ManualRAINLINK.pdf”

Overeem, A., Leijnse, H., and Uijlenhoet, R., 2016: Retrieval algorithm for rainfall mapping from microwave links in a cellular communication network, Atmospheric Measurement Techniques, 9, 2425-2444, https://doi.org/10.5194/amt-9-2425-2016.

Examples

RainRetrievalMinMaxRSL(Aa=2.3,alpha=0.33,Data=DataOutlierFiltered,
kRPowerLawDataH=kRPowerLawDataH,kRPowerLawDataV=kRPowerLawDataV,PmaxCor=Pcor$PmaxCor,
PminCor=Pcor$PminCor,Pref=Pref)

overeem11/RAINLINK documentation built on July 8, 2023, 5:53 a.m.