Техника и методика геофизического эксперимента : сборник научных трудов / Рос. акад. наук, Кол. науч. центр, Поляр. геофиз. ин-т. – Апатиты : [б. и.], 2003. – 194 с.

UDK 551.510.42 Karpetchko A.Yu., Beloglazov M.I. Measurements o f surface ozone at rural cite on Kola Peninsula in 1999-2000 // Instruments and methods of geophysical experiment. - Apatity: KSC, 2003. - P. 133-138. Results of regular measurements of surface ozone at rural cite on Kola Peninsula in 1999-2000 are reported. Connections between surface ozone and surface temperature, atmospheric pressure, wind velocity and relative humidity were analyzed. The influence of meteoparameters on variance of surface ozone was estimated. Fig. - 2, tabl. - 3, ref. - 8 titles. UDK 551.510.42 Karpetchko A.Yu. Observation of low surface ozone concentration on kola peninsula in spring. Comparision with numerical modelling results // Instruments and methods o f geophysical experiment. - Apatity: KSC, 2003. - P.138-145. Two episodes o f low surface ozone concentrations in May 1999 were analyzed. It was shown that these episodes are connected with air transport from ice fields of Barents Sea. Obtained results are in good agreement with numerical modeling. Fig. - 3, tabl. - 2, ref. - 19 titles. UDK 551.510.534 (268.46+210.5) Beloglazov M.I., Galakhov A.A., Karpechko A.Yu., Pershakov L.A., Roldugin A.V., Roldugin V.C., Roumyantsev S.A., Shishaev V.A. Influence of anthropogenic nitrogen oxides on surface ozone content at stagnation period // Instruments and methods of geophysical experiment. - Apatity: KSC, 2003.- P .145-151. It is known that increase of nitrogen oxides concentration in the near-ground layer of the atmosphere leads to decrease of surface ozone concentration in conditions of low UV radiation. This phenomenon must be strengthened at weak air transport processes when the chemical processes are mainly important in the establishing of air component composition. This assumption is confirmed by observations carried out at the atmospheric station of PGI in Apatity in summer 2000. Concentrations of ozone and nitrogen dioxide together with wind speed and direction into the near-ground layer were registered. Typical observed situation is such: increase of nitrogen dioxide concentration in several ppb is accompanied by considerable (near 10 ppb) decrease of surface ozone concentration at stagnation periods duration from one to some hours. Wind is absent or very weak at stagnation periods. This correspondence of observed concentrations is greatly weaker in windy periods. Observed variations may be explained by formation o f air cavity in stagnation conditions; nitrogen oxides by anthropogenic origin accumulate into this cavity and destroy ozone. At windy conditions the cavity does not be formed and the correspondence o f concentrations loses a local character. The transition to stagnation is accompanied by negative variation o f surface 192

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