|

Experimental Investigation of Long-Term Humidity Variations in a Thermally Stabilised Chamber

Authors: Golyak Il.S., Morozov A.N., Strokov M.A. Published: 08.06.2020
Published in issue: #3(90)/2020  
DOI: 10.18698/1812-3368-2020-3-71-77

 
Category: Physics | Chapter: Instrumentation and Methods of Experimental Physics  
Keywords: Humidity, dew point, temperature, correlation coefficient, spectrum, long-term measurements

The paper presents long-term measurement results concerning relative humidity in a thermally stabilised chamber. We show that the relative humidity values inside the chamber correlate with the absolute humidity of the atmospheric air. We detected the presence of 16- and 30-day periodic signals in the spectra of the difference between the relative humidity inside the thermally stabilised chamber and the orthonormal absolute humidity of the atmospheric air. We also discovered the presence of periodic signals in the periodogram of variations in relative humidity inside the thermally stabilised chamber; the periods of those signals are 1436 and 1440 minutes, which corresponds to the period of the Earth's rotation around its axis, taking into account its rotation around the Sun

References

[1] Morozov A.N. The influence of meteorological factors on the long-period variation of the Kullback measure of voltage fluctuations on the electrolytic cells. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2015, no. 4, pp. 57--66 (in Russ.). DOI: https://doi.org/10.18698/1812-3368-2015-4-57-66

[2] Morozov A.N. Nonlocal influences of natural dissipative processes on the Kullback measure of voltage fluctuations on an electrolytic cell. NeuroQuantology, 2016, vol. 14, no. 3, pp. 477--483. DOI: https://doi.org/10.14704/nq.2016.14.3.920

[3] Sonntag D. Advancements in the field of hygrometry. Meteorol. Z., 1994, vol. 3, pp. 51--66.

[4] Murphy D.M., Koop T. Review of the vapor pressures of ice and supercooled water for atmospheric applications. Quart. J. Royal Met. Soc., 2005, vol. 131, iss. 608, pp. 1539--1565. DOI: https://doi.org/10.1256/qj.04.94

[5] Max J. Methodes et techniques de traitement du signal et applications aux mesures physiques. Paris, Masson.

[6] Morozov A.N., Skripkin A.V. Description of evaporation of a spherical liquid drop by a non-Markovian random process based on integral stochastic equations. Russ. Phys. J., 2011, vol. 53, iss. 11. pp. 1167--1178. DOI: https://doi.org/10.1007/s11182-011-9546-y

[7] Morozov A.N., Skripkin A.V. Nemarkovskie fizicheskie protsessy [Non-Markovian physical processes]. Moscow, FIZMATLIT Publ., 2018.