Variability of Total Electron Content in the High-Altitude Ionosphere Following Solar Maximum

Abstract

Northwest Research Associates (NWRA) is recording a database containing measurements of the differential carrier phase (DCP) and the differential group delay (DGD) between the two L-band signals transmitted by satellites of the Global Positioning System (GPS). Data collection is continuing at Shemya, AK, and Hanscom AFB, MA. Software has been, and continues to be, developed to process these data into measurements of trans-ionospheric total electron content (TEC). This database is being analyzed in order to document the variability of TEC and to specify TEC morphology in the region of Shemya, AK. Studies of multipath mitigation and accurate satellite bias determination have been conducted to insure high data quality. Analysis of these and other data developed by NWRA in other high latitude studies in the Shetland Islands, UK, has yielded ionospheric trough boundary signatures. These data will be compared to Ionosphere, Morphology, Total electron content, Ionospheric trough.

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Document Details

Document Type
Technical Report
Publication Date
Mar 09, 1994
Accession Number
ADA285849

Entities

People

  • C. C. Andreasen
  • Elizabeth Holland

Organizations

  • Northwest Research Associates

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Artificial Satellites
  • Data Analysis
  • Data Processing
  • Databases
  • Electrons
  • Global Positioning Systems
  • Grids
  • High Latitudes
  • Instrumentation
  • Ionosphere
  • Ionospheric Models
  • Latitude
  • Measurement
  • Models
  • Solar Activity
  • Warning Systems

Readers

  • Astronomy and Astrophysics.

Technology Areas

  • Microelectronics
  • Space