Abstract
Estimates of the optical thickness of the atmosphere above the Terskol Peak are presented. The optical thickness is represented as a quantity depending on absorption coefficients determined mainly by water vapor and oxygen. The calculations are carried out under a clear sky without regard to aerosol components. Water vapor variations are considered as the main factor determining the radiation attenuation in the atmosphere in the millimeter and submillimeter spectrum ranges. The average optical thickness of the atmosphere is estimated with the use of the MPM Liebe and MOLIERE models (in the JPL and HITRAN configurations) for frequencies of 100, 150, and 225 GHz.
REFERENCES
D. Zhu, K. Zhang, L. Yang, S. Wu, and L. Li, “Evaluation and calibration of Modis near-infrared precipitable water vapor over China using GNSS observations and ERA-5 reanalysis dataset,” Remote Sens. 13 (14), 2761 (2021). https://doi.org/10.3390/rs13142761
S. Manandhar, Y. H. Lee, Y. S. Meng, F. Yuan, and J. T. Ong, “GPS-derived PWV for rainfall nowcasting in tropical region,” IEEE Trans. Geosci. Remote Sens. 56 (8), 4835–4844 (2018). https://doi.org/10.1109/TGRS.2018.2839899
Q. Zhao, X. Ma, W. Yao, Y. Liu, and Y. Yao, “A drought monitoring method based on precipitable water vapor and precipitation,” J. Clim. 33, 10727–10741 (2020). https://doi.org/10.1175/JCLI-D-19-0971.1
X. Wang, K. Zhang, S. Wu, Z. Li, Y. Cheng, L. Li, and H. Yuan, “The correlation between GNSS-derived precipitable water vapor and sea surface temperature and its responses to El Nino–Southern Oscillation,” Remote Sens. Environ. 216, 1–12 (2018). https://doi.org/10.1016/j.rse.2018.06.029
M. A. Obregon, A. Serrano, M. J. Costa, and A. M. Silva, “Global spatial and temporal variation of the combined effect of aerosol and water vapour on solar radiation,” Remote Sens. 13, 708 (2021). https://doi.org/10.3390/rs13040708
G. Marchiori, F. Rampini, M. Tordi, M. Spinola, and R. Bressan, “Towards the Eurasian Submillimeter Telescope (ESMT): Telescope concept outline and first results,” in Proc. of the All-Russian Conference “Ground-Based Astronomy in Russia. 21st Century,” Ed. by I. I. Romanyuk, I. A. Yakunin, A. F. Valeev, and D. O. Kudryavtsev (Special Astrophysical Observatory, Ruassian Academy of Sciences, 2020), pp. 378–383. ISBN 978-5-6045062-0-2.
V. Khaikin, M. Lebedev, V. Shmagin, I. Zinchenko, V. Vdovin, G. Bubnov, V. Edelman, G. Yakopov, A. Shikhovtsev, G. Marchiori, M. Tordi, R. Duan, and D. Li, “On the Eurasian SubMillimeter Telescopes project (ESMT),” in Proc. of the 7th All-Russian Microwave Conference (RMC) (Moscow, 2020), pp. 47–51. https://doi.org/10.1109/RMC50626.2020.9312233
G. M. Bubnov, E. B. Abashin, Y. Y. Balega, O. S. Bolshakov, S. Y. Dryagin, V. K. Dubrovich, A. S. Marukhno, V. I. Nosov, V. F. Vdovin, and I. I. Zinchenko, “Searching for new sites for THz observations in Eurasia,” IEEE Trans. Terahertz Sci. Technol. 5 (1), 64–72 (2015). doi. 2380473https://doi.org/10.1109/TTHZ.2014
Y. Balega, G. Bubnov, M. Glyavin, A. Gunbin, D. Danilevsky, G. Denisov, A. Khudchenko, I. Lesnov, A. Marukhno, K. Mineev, S. Samsonov, G. Shanin, and V. Vdovin, “Atmospheric propagation studies and development of new instrumentation for astronomy, radar, and telecommunication applications in the subterahertz frequency range,” Appl. Sci. 12, 5670 (2022). https://doi.org/10.3390/app12115670
S. Z. Ziv, Y. Yair, P. Alpert, L. Uzan, and Y. Reuveni, “The diurnal variability of precipitable water vapor derived from GPS tropospheric path delays over the Eastern Mediterranean,” Atmos. Res. 249, 05307 (2021). https://doi.org/10.1016/j.atmosres.2020.105307
W. Zhang, H. Zhang, H. Liang, Y. Lou, Y. Cai, Y. Cao, Y. Zhou, and W. Liu, “On the suitability of ERA5 in hourly GPS precipitable water vapor retrieval over China,” J. Geod. 93, 1897–1909 (2019). https://doi.org/10.1007/s00190-019-01290-6
B. Torres, V. E. Cachorro, C. Toledano, J. P.Ortiz De Galisteo, A. Berjon, A. M. De Frutos, Y. Bennouna, and N. Laulainen, “Precipitable water vapor characterization in the Gulf of Cadiz Region (Southwestern Spain) based on sun photometer, GPS, and radiosonde data,” J. Geophys. Res. Atmos. 115 (18), D18103 (2010). https://doi.org/10.1029/2009JD012724
S. A. Sitnov and I. I. Mokhov, “Water-vapor content in the atmosphere over European Russia during the summer 2010 fires,” Izv., Atmos. Ocean. Phys. 49 (4), 380–394 (2013).
S. Wang, T. Xu, W. Nie, C. Jiang, Y. Yang, Z. Fang, M. Li, and Z. Zhang, “Evaluation of precipitable water vapor from five reanalysis products with ground-based GNSS observations,” Remote Sens. 12, 1817 (2020). https://doi.org/10.3390/rs12111817
J. Jiang, T. Zhou, and W. Zhang, “Evaluation of satellite and reanalysis precipitable water vapor data sets against radiosonde observations in Central Asia,” Earth Space Sci. 6, 1129–1148 (2019). https://doi.org/10.1029/2019EA000654
Q. Zhao, Y. Yao, W. Yao, and S. Zhang, “GNSS-derived PWV and comparison with radiosonde and ECMWF ERA-Interim data over mainland China,” J. Atmos. Sol.-Terr. Phys. 182, 85–92 (2019). https://doi.org/10.1016/j.jastp.2018.11.004
A. Yu. Shikhovtsev, V. B. Khaikin, A. P. Mironov, and P. G. Kovadlo, “Statistical analysis of the water vapor content in North Caucasus and Crimea,” Atmos. Ocean. Opt. 35 (3), 168–175 (2022).
A. Y. Shikhovtsev, P. G. Kovadlo, V. B. Khaikin, V. V. Nosov, V. P. Lukin, E. V. Nosov, A. V. Torgaev, A. V. Kiselev, and M. Y. Shikhovtsev, “Atmospheric conditions within Big Telescope Alt-Azimuthal region and possibilities of astronomical observations,” Remote Sens. 14, 1833 (2022). https://doi.org/10.3390/rs14081833
ECMWF Reanalysis v5 (ERA-5). Germany, 2022. https://ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5. Cited January 10, 2022.
H. Hersbach, B. Bell, P. Berrisford, S. Harahara, A. Horanui, J. Munoz-Sabater, J. Nicolas, C. Peubey, R. Radu, D. Schepers, A. Simmons, C. Soci, S. Abdalla, X. Abellan, G. Balsamo, P. Bechtold, G. Biavati, J. Bidlot, M. Bonavita, G. De Chiara, P. Dahlgren, D. Dee, M. Diamantakis, R. Dragani, J. Flemming, R. Forbes, M. Fuentes, A. Geer, L. Haimberger, S. Healy, R. J. Hogan, E. Holm, M. Janiskova, S. Keeley, P. Laloyaux, P. Lopez, C. Lupu, G. Radnoti, P. de Rosnay, I. Rozum, F. Vamborg, S. Villaume, and J.-N. Thepaut, “The ERA-5 global reanalysis,” Quant. J. Roy. Meteorol. Soc. 146 (730), 1999–2049 (2020).
G. Bubnov, V. Vdovin, V. Khaikin, P. Tremblin, and P. Baron, “Analysis of variations in factors of specific absorption of sub-terahertz waves in the Earth’s atmosphere,” in Proc. of the 7th All-Russian Microwave Conference (RMC) (Moscow, 2020), pp. 229–232. https://doi.org/10.1109/RMC50626. 2020.9312314
P. Baron, J. Mendrok, K. Yasuko, O. Satoshi, S. Takamasa, S. Kazutoshi, S. Kosai, S. Hideo, and J. Urban, “AMATERASU: Model for Atmospheric TeraHertz Radiation Analysis and Simulation,” J. Nat. Inst. Inform. Commun. Technol. 55 (1), 109–121 (2008).
H. J. Liebe, “MPM—an atmospheric Millimeter-wave Propagation Mode,” Int. J. Infrared Millimeter Wave 10 (6), 631–650 (1989).
H. J. Liebe, G. A. Hufford, and M. G. Cotton, “Propagation modeling of moist air and suspended water/ice particles at frequencies below 1000 GHz,” in Proc. NATO (AGARD, 1993).
A. I. Zakharov and E. S. Kuvalkin, “Software implementation of the technique for calculation of radio signal attenuation in atmospheric gases for satellite communication,” Vestn. Baltiiskogo Fed. Univ. im. I. Kanta. Ser. Fiz.-Mat. Tekhn. Nauki 1, 18–27 (2019).
V. V. Tatarskii, M. S. Tatarskaia, and Ed. R. Westwater, “Statistical retrieval of humidity profiles from precipitable water vapor and surface measurements of humidity and temperature,” J. Atmos. Ocean. Technol. 1 (13), 165–174 (1996).
A. Shyam, B. S. Gohil, and S. Basu, “Retrieval of water vapour profiles from radio occultation refractivity using artificial neural network,” Ind. J. Radio Space Phys. 42 (6), 411–419 (2013).
G. M. Bubnov, V. F. Grigor’ev, I. I. Zinchenko, P. M. Zemlyanukha, G. N. Il’in, D. M. Kabanov, V. I. Nosov, and V. F. Vdovin, “Consistent determination of the integral humidity and effective optical depth of the atmosphere in the millimeter wavelength range using wideband radiometers,” Izv. Vyssh. Ucheb. Zaved. Radiofiz. 62 (12), 920–931 (2019).
I. E. Arsaev, V. Yu. Bykov, G. N. Il’in, and E. F. Yurchuk, “Water vapor radiometer: Measuring instrument of atmospheric brightness temperature,” Meas. Tech. 60 (5), 1–8 (2017).
A. S. Marukhno, G. M. Bubnov, V. F. Vdovin, O. V. Voziakova, P. M. Zemlyanukha, I. I. Zinchenko, M. G. Mingaliev, and N. I. Shatsky, “Analysis of the millimeter-band astroclimate at the Caucasus Mountain Observatory,” in Proc. of the 7th All-Russian Microwave Conference (RMC) (Moscow, 2020), pp. 184–188. https://doi.org/10.26119/978-5-6045062-0-2_2020_184
ACKNOWLEDGMENTS
We are very grateful to the anonymous reviewer for the valuable comments.
Funding
This study was supported by the Russian Science Foundation (project no. 22-72-00049, https://rscf.ru/project/22-72-00049).
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Translated by A. Nikol’skii
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Shikhovtsev, A.Y., Khaikin, V.B., Kovadlo, P.G. et al. Optical Thickness of the Atmosphere above the Terskol Peak. Atmos Ocean Opt 36, 78–85 (2023). https://doi.org/10.1134/S1024856023020148
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DOI: https://doi.org/10.1134/S1024856023020148