Refraction
parameters in the near-polar points of observation of Tiksi, Norilsk and Vize Island
M.
G. Dembelov1, Yu. B. Bashkuev1, A. V. Loukhnev2
1Institute of physical material
sciences of SB RAS, Sakhyanovoy
6, Ulan-Ude 670047, Russia
2 Institute of the Earth's Ñrust of SB RAS, Lermontova St., 128, Irkutsk 664033, Russia
The paper is received
on May 14, 2018
Abstract.
Refraction of radio waves in the VHF band in the lower neutral part of
the atmosphere (troposphere) can be calculated from the values of the altitude
profile of the refractive index of air (n). The refractive index mainly
depends on the atmospheric pressure, temperature and humidity of the air. In
order to obtain data on temperature and relative humidity at different
atmospheric pressure levels, in addition to the radiosonde method, the possibility
of using passive satellite location of the atmosphere is considered for
modeling the altitude dependence of the refractive index of air. The seasonal
parameters of the exponential model of tropospheric refraction and the values
of the angles of total refraction for different heights of the radiation source
above the Earth's surface are determined above the observation points of Tiksi,
Norilsk and Vize Island. The values of total tropospheric delay obtained as a
result of GPS measurements are considered.
Key words:
refractive index, vertical profiles, refraction angle, GPS measurements,
tropospheric delay.
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For citation:
M.
G. Dembelov, Yu. B. Bashkuev, A. V. Loukhnev. Refraction
parameters in the near-polar points of observation of Tiksi, Norilsk and Vize Island.
Zhurnal Radioelektroniki - Journal of
Radio Electronics. 2018. No. 6. Available at
http://jre.cplire.ru/jre/jun18/1/text.pdf
DOI
10.30898/1684-1719.2018.6.1