ALTAIR Observations of Ionospheric Irregularities and Background Densities.

Abstract

A series of measurements of the properties of equatorial ionospheric irregularities were made at Kwajalein, M.I. in August 1977 and July-August 1978. These measurements, involved coordinated ground based and in-situ sensors. The ARPA Long-range Tracking and Instrumentation Radar (ALTAIR), obtained backscatter and transmission data during five nights in August 1977 and eight nights in July-August 1978. This report describes the ALTAIR data from the night of 11 August 1978 which yield direct quantitative measurements of 1 m and 3/8 m irregularities and of plasma depleted regions. These plasma depleted regions, previously predicted on the basis of theoretical speculation and in-situ data, appear to be associated with the decay phase and not the generative phase of the field aligned irregularities.

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Document Details

Document Type
Technical Report
Publication Date
Sep 19, 1979
Accession Number
ADA078599

Entities

People

  • David M. Towle

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Altitude
  • Antennas
  • Background Noise
  • Backscattering
  • Electromagnetic Scattering
  • Electron Density
  • Electrons
  • Frequency
  • Ground Based
  • Instrumentation
  • Ionosphere
  • Measurement
  • Measuring Instruments
  • Observation
  • Radar Cross Sections
  • Scattering

Fields of Study

  • Environmental science
  • Physics

Readers

  • Space/Atmospheric Physics.
  • Theoretical Analysis.