The linear relationship between attenuation and average rainfall rate for terrestrial links

Adrian J Townsend, Robert J Watson

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Attenuation measured on terrestrial links can be used to estimate surface rainfall rates along a link path. There is current interest in the use of inverse methods to estimate rainfall over areas inferred from terrestrial links. A power-law relationship can be used to estimate rainfall rate from attenuation measured by a terrestrial link. However, the inverse method is simplified with a linear relationship between attenuation and rainfall rate when determining path averaged rainfall rates. This paper investigates power-law and linear relationships between rainfall rate and attenuation. It examines their goodness of fit for a range of frequencies and rainfall rates. Six years of disdrometer data from Chilbolton in the U.K. has been used to study both linear and power-law fits to attenuation and quantify the associated errors.
Original languageEnglish
Pages (from-to)994-1002
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume59
Issue number3
Early online date29 Oct 2010
DOIs
Publication statusPublished - Mar 2011

Keywords

  • attenuation
  • microwave radio propagation meteorological factors
  • rainfall effects

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