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Accuracy of Calculations Improved by the Adjusted Parameters for the Algorithm to Calculate the Tropospheric Wet Delay: experimental evaluation

Transactions of IAA RAS, вып. 50, 36–43 (2019)

Keywords: water vapor radiometer, radiative brightness temperature, tropospheric delay, GNSS

Abstract

We calculate tropospheric wet delays (TWD) from our water vapor radiometer’s (WVR) measurements using an algorithm that requires a number of parameters to have been obtained from a few experimental simulation models. We compared the TWD values obtained from our previously used algorithm and the full TWD reference series that had been published by the International GNSS Service (IGS). It showed us about 6 mm growth in the average TWD difference in summer as compared to its winter figures. This negative effect was removed almost completely by the TWD coefficients which had been calculated experimentally in order to use them in the WVR data analysis algorithm. Our paper describes the method to produce these coefficients, explains the type of their dependence on the atmospheric integral water vapor content and shows the figures obtained as a result of the WVR’s TWD and the IGS reference series compared.

Citation

Text

BibTeX

RIS

G. N. Ilin. Accuracy of Calculations Improved by the Adjusted Parameters for the Algorithm to Calculate the Tropospheric Wet Delay: experimental evaluation // Transactions of IAA RAS. — 2019. — Вып. 50. — P. 36–43.

@article{ilin2019,
  abstract = {We calculate tropospheric wet delays (TWD) from our water vapor radiometer’s (WVR) measurements using an algorithm that requires a number of parameters to have been obtained from a few experimental simulation models. We compared the TWD values obtained from our previously used algorithm and the full TWD reference series that had been published by the International GNSS Service (IGS). It showed us about 6 mm growth in the average TWD difference in summer as compared to its winter figures. This negative effect was removed almost completely by the TWD coefficients which had been calculated experimentally in order to use them in the WVR data analysis algorithm.
Our paper describes the method to produce these coefficients, explains the type of their dependence on the atmospheric integral water vapor content and shows the figures obtained as a result of the WVR’s TWD and the IGS reference series compared.},
  author = {G.~N. Ilin},
  doi = {10.32876/ApplAstron.50.36-43},
  issue = {50},
  journal = {Transactions of IAA RAS},
  keyword = {water vapor radiometer, radiative brightness temperature, tropospheric delay, GNSS},
  pages = {36--43},
  title = {Accuracy of Calculations Improved by the Adjusted Parameters for the Algorithm to Calculate the Tropospheric Wet Delay: experimental evaluation},
  url = {http://iaaras.ru/en/library/paper/1997/},
  year = {2019}
}

TY  - JOUR
TI  - Accuracy of Calculations Improved by the Adjusted Parameters for the Algorithm to Calculate the Tropospheric Wet Delay: experimental evaluation
AU  - Ilin, G. N.
PY  - 2019
T2  - Transactions of IAA RAS
IS  - 50
SP  - 36
AB  - We calculate tropospheric wet delays (TWD) from our water vapor
radiometer’s (WVR) measurements using an algorithm that requires a
number of parameters to have been obtained from a few experimental
simulation models. We compared the TWD values obtained from our
previously used algorithm and the full TWD reference series that had
been published by the International GNSS Service (IGS). It showed us
about 6 mm growth in the average TWD difference in summer as compared
to its winter figures. This negative effect was removed almost
completely by the TWD coefficients which had been calculated
experimentally in order to use them in the WVR data analysis
algorithm.  Our paper describes the method to produce these
coefficients, explains the type of their dependence on the
atmospheric integral water vapor content and shows the figures
obtained as a result of the WVR’s TWD and the IGS reference series
compared.
DO  - 10.32876/ApplAstron.50.36-43
UR  - http://iaaras.ru/en/library/paper/1997/
ER  -