Adaptive attenuation correction techniques for C-band polarimetric weather radars

Miguel Angel Rico-Ramirez*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

13 Citations (Scopus)

Abstract

This paper presents the results of a study designed to evaluate the performance of attenuation correction algorithms due to heavy precipitation at operational C-band weather radar frequencies and using differential phase measurements. This paper proposes the extension of two attenuation correction algorithms and shows a methodology to validate attenuation-corrected reflectivity measurements by using a nearby radar as opposed to the traditional use of rain gauge or disdrometer measurements. The results showed that the the adaptive attenuation correction techniques have a higher performance than the nonadaptive ones when comparing the measured and computed Phi(DP) profiles and also when comparing with reflectivity measurements from a nearby radar. The results also showed that the difference in the performance of the adaptive attenuation correction algorithms is minimal and optimizing a single parameter (e. g., alpha in the BRI algorithm) rather than three unknown parameters (e. g., a, b, and alpha in the AHB or AFV algorithms) is a more robust procedure.

Translated title of the contributionAdaptive attenuation correction techniques for C-band polarimetric weather radars
Original languageEnglish
Pages (from-to)5061-5071
Number of pages11
JournalIEEE Transactions on Geoscience and Remote Sensing
Volume50
Issue number12
DOIs
Publication statusPublished - Dec 2012

Keywords

  • Attenuation
  • C-band
  • dual-polarized
  • polarimetric radar
  • radar
  • rainfall
  • RAINDROP SIZE DISTRIBUTION
  • DIFFERENTIAL PROPAGATION PHASE
  • RAINFALL ESTIMATION
  • REAL-TIME
  • REFLECTIVITY
  • DISDROMETER
  • RETRIEVAL
  • AIRBORNE
  • NETWORK
  • CLUTTER

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