ppcpy.qc.transCor#

Functions

transCorGHK_channel

Corrects the effect of different polarization-dependent transmission inside the total and depol channel.

transCorGHK_cube

ppcpy.qc.transCor.transCorGHK_cube(data_cube, signal='BGCor')[source]#
ppcpy.qc.transCor.transCorGHK_channel(sigT, bgT, sigC, bgC, transGT=1, transGR=1, transHT=0, transHR=-1, polCaliEta=1, polCaliEtaStd=0)[source]#

Corrects the effect of different polarization-dependent transmission inside the total and depol channel.

PollyNET/Pollynet_Processing_Chain

INPUTS:
sigT: array

Signal in total channel.

bgT: array

Background in total channel.

sigC: array

Signal in cross channel.

bgC: array

Background in cross channel.

transGT: float

G parameter in total channel.

transGR: float

G parameter in cross channel.

transHT: float

H parameter in total channel.

transHR: float

H parameter in cross channel.

polCaliEta: float

Depolarization calibration constant (eta).

polCaliEtaStd: float

Uncertainty of the depolarization calibration constant.

OUTPUTS:
sigTCor: array

Transmission corrected elastic signal.

bgTCor: array

Background of transmission corrected elastic signal.

References

Mattis, I., Tesche, M., Grein, M., Freudenthaler, V., and Müller, D.: Systematic error of lidar profiles caused by a polarization-dependent receiver transmission: Quantification and error correction scheme, Appl. Opt., 48, 2742-2751, 2009. Freudenthaler, V. About the effects of polarising optics on lidar signals and the Delta90 calibration. Atmos. Meas. Tech., 9, 4181–4255 (2016).

HISTORY:

  • 2021-05-27: First edition by Zhenping.

  • 2024-08-14: Change to GHK parameterization by Moritz.

  • 2024-12-28: AI translation

Authors: - zhenping@tropos.de, haarig@tropos.de