Water vapor in the atmosphere over the northern Tien Shan |
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| Authors: | V N Aref’ev F V Kashin V K Semenov R M Akimenko N E Kamenogradskii N I Sizov V P Sinyakov L B Upenek V P Ustinov |
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| Institution: | (1) Institute of Experimental Meteorology, NPO Taifun, pr. Lenina 82, Obninsk, Kaluga oblast, 249038, Russia;(2) Kyrgyz State National University, ul. Manasa 101, Bishkek, 720033, Kyrgyzstan |
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| Abstract: | Refined data of systematic measurements of total water vapor in the atmosphere from May 1980 to April 2005 are presented. The data were obtained at the Issyk Kul atmospheric-monitoring station by the method of solar molecular-absorption spectroscopy. Over 25 years, the annual mean water-vapor content in the atmosphere increased by 4.5% at a mean rate of increase of 0.18% per year. However, the water-vapor content decreased in the last five years. The results of statistical processing of experimental data (general statistical characteristics, correlation coefficients, composite oscillations) are described. A refined model is proposed for forecasts of temporal variations in the monthly mean and annual mean water-vapor contents for the coming years. The model includes a linear trend and the sum of oscillations with periods close to the periods of a number of well-known geophysical phenomena. Regression equations are proposed to relate the water-vapor content in the atmospheric column to the surface temperature and absolute humidity. |
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