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Observations of Radio Refractivity Gradients in the Mekong Delta
Author(s) -
Samson C. A.,
Maloney L. J.
Publication year - 1971
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/rs006i012p01027
Subject(s) - radiosonde , environmental science , mekong delta , meteorology , delta , climatology , atmospheric sciences , remote sensing , geology , geography , physics , astronomy , water resource management
Beyond‐the‐horizon 2‐GHz radio paths in the Mekong Delta have shown large diurnal and seasonal propagation variations, which sometimes resulted in serious degradation of system performance. Measurements of refractivity gradients, in January and February 1970, using a high‐resolution radiosonde technique showed a higher incidence of subrefraction than was indicated by the available climatological statistics. Low‐based elevated layers with extreme superrefractive gradients were occasionally observed over wide areas.