Mesospheric wind and aspect sensitivity measurements at Jicamarca using radar interferometry and poststatistics steering techniques

Erhan Kudeki, Fahri Sürücü, Ronald F. Woodman

Research output: Contribution to journalArticlepeer-review

Abstract

Spectral and cross‐spectral signatures of lower mesospheric radar returns are investigated and modeled. Aspect sensitivity of radar echoes and the horizontal, vertical, and random components of atmospheric fluid velocity are estimated. Estimated random velocity magnitudes of ∼0.2 m/s during a specific lower mesospheric scattering event are smaller than corresponding Doppler spectral widths of ∼1 m/s. During the same event, aspect sensitivity variations as large as ∼10 dB/deg were observed. Higher mesospheric returns generally indicate stronger random velocity amplitudes and weaker aspect sensitivity variations. The extreme conditions encountered in the lower mesosphere can introduce systematic errors in wind and turbulence studies, but simple interferometric methods are suggested to cope with such problems. Data analysis in this paper includes first examples of the implementation of the recently introduced poststatistics steering (PSS) technique. A cross‐spectral model developed in the appendix should be suitable for the analysis of most middle atmospheric radar interferometer data.

Original languageEnglish (US)
Pages (from-to)595-612
Number of pages18
JournalRadio Science
Volume25
Issue number4
DOIs
StatePublished - Jan 1 1990
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Earth and Planetary Sciences(all)
  • Electrical and Electronic Engineering

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