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Length measurements of mid‐latitude scintillation irregularities
Author(s) -
MacDougall John W.
Publication year - 1992
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/91rs02917
Subject(s) - scintillation , amplitude , physics , geodesy , radius , latitude , perturbation (astronomy) , optics , geology , astrophysics , computational physics , astronomy , detector , computer security , computer science
The lengths of irregularities which produce 150‐MHz amplitude scintillations have been measured at 43°N, 81°W (geographic) using arrays of receivers with large spacings. The average length (major axis radius) of the irregularities was 6.1 km. This is much shorter than expected and implies that the measurements are of “young” irregularities, less than 1 minute old. These irregularities appear to be a large, 25–50% perturbation of the background density.