Современные проблемы дистанционного зондирования Земли из космоса. 2020. Т. 17. № 6. С. 82-86
Turbulence in the upper troposphere according to long-term satellite measurements and its relationship with climatic parameters
A.F. Nerushev
1 , K.N. Visheratin
1 , R.V. Ivangorodsry
1 1 RPA “Typhoon”, Obninsk, Russia
Одобрена к печати: 15.09.2020
DOI: 10.21046/2070-7401-2020-17-6-82-86
A method is described for determining the characteristics of turbulence zones in the upper troposphere based on the processing of measurement data of the SEVIRI radiometer of second-generation European geostationary meteorological satellites in a 6.2 μm water vapor channel. Their spatial and temporal variability in the time interval 2007–2018 is considered. A significant (by 130–60 %) increase in areas occupied by relatively weak and moderate turbulence and a decrease (by 6–33 %) in areas with strong and very strong turbulence were revealed. The relationship of turbulence zones with the characteristics of jet stream and the temperature of the troposphere is investigated. Significant with a probability of more than 95 % annual variations of area of turbulence zones and most of the characteristics of jet stream have been identified. The most pronounced are in phase annual variations of the turbulence areas with the jet stream area and the velocity gradient and counterphase variations with the latitude and longitude of the centre of the jet stream. The connection between the variability of turbulence and the temperature variability of the upper troposphere is revealed. In this case, the effect of temperature on turbulence manifests itself indirectly through the characteristics of jet stream.
Ключевые слова: clear air turbulence, characteristics of turbulence zones, geostationary meteorological satellites, the upper troposphere, the atmospheric tracers, climatic parameters
Полный текстСписок литературы:
- [1] Kauffmann P., The business case for turbulence sensing systems in the US air transport sector, J. Air Transport Management, 2002, Vol. 8(2), pp. 99–107.
- [2] Shakina N. P., Ivanova A. R., Forecasting meteorological conditions for aviation, Moscow: TRIADA Ltd., 2016, 310 p.
- [3] Williams P. D., Increased light, moderate, and severe clear-air turbulence in response to climate change, Advances Atmospheric Sciences, 2017, Vol. 34, pp. 576–586.
- [4] Nerushev A. F., Kramchaninova E. K., Method for determining atmospheric motion characteristics using measurements on geostationary meteorological satellites, Izvestiya, Atmospheric and Oceanic Physics, 2011, Vol. 47(9), pp. 1104–1113.
- [5] Nerushev A F., Ivangorodsky R. V., Determination of turbulence zones in the upper troposphere based on satellite measurements, Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16(1), pp. 205–215.
- [6] Eumetsat: Monitoring Weather and Climate from Space, 2018, available at: http://www.eumetsat.int/.
- [7] Golitsyn G S., An Explanation of the Relative Eddy Diffusion Law in the Atmosphere and on the Ocean Surface, Doklady Earth Sciences, 2001, Vol. 381(8), pp. 939–941.
- [8] Kramchaninova E K., Nerushev A. F., Definition of turbulent characteristics in the areas of hazardous weather conditions on satellite data), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2008, Vol. 5(1), pp. 484–490.
- [9] Ivangorodsky R. V., Nerushev A. F., Characteristics of the upper tropospheric jet fluxes inferred from the data of European geostationary meteorological satellites, Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2014, Vol. 11(1), pp. 45–53.
- [10] Nerushev A. F., Visheratin K. N., Ivangorodsky R. V., Dynamics of High-Altitude Jet Streams from Satellite Measurements and Their Relationship with Climatic Parameters and Large-Scale Atmospheric Phenomena, Izvestiya, Atmospheric and Oceanic Physics, 2019, Vol. 55(9), pp. 1198–1209.