Accession Number:

ADA285849

Title:

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

Descriptive Note:

Technical rept.

Corporate Author:

NORTHWEST RESEARCH ASSOCIATES INC BELLEVUE WA

Personal Author(s):

Report Date:

1994-03-09

Pagination or Media Count:

20.0

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.

Subject Categories:

  • Atmospheric Physics
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE