Statistical Analysis of Refractivity Gradient and $\beta_{0}$ Parameter in the Gulf Region

Autor:	Hussein AlAhmad, Raed A. Abd-Alhameed, Kifah Al-Ansari, James M. Noras, Abdulhadi AbouAlmal, Chan H. See, Steve M. R. Jones
Rok vydání:	2013
Předmět:	Meteorology law Radiosonde Environmental science Atmospheric refraction Statistical analysis Electrical and Electronic Engineering Anomalous propagation Refractive index Atmospheric layer law.invention
Zdroj:	IEEE Transactions on Antennas and Propagation. 61:6250-6254
ISSN:	1558-2221 0018-926X
DOI:	10.1109/tap.2013.2279999
Popis:	In this communication, nine years of local radiosonde meteorological data, from 1997 to 2005, have been used to calculate the vertical refractivity gradient, ΔN, in the lowest atmospheric layer above the ground surface. The values obtained are used to estimate the parameter β0, which represents the probability of non-standard propagation. Hourly, monthly and yearly distributions of ΔN in the first 100 meters above the ground are given. Monthly and yearly variations of the mean of ΔN and β0 are provided and the β0 values are compared with the ITU maps.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8a88931fefe8597aa3529daf41c4589a https://doi.org/10.1109/tap.2013.2279999 Zobrazit plný text záznamu