Method for determining atmospheric motion characteristics using measurements on geostationary meteorological satellites

Turbulence in the upper troposphere according to long-term satellite measurements and its relationship with climatic parameters

“…To validate the values determined by satellite data, the results of [7] were used, in which an analytical description of the coefficient of relative turbulent diffusion was obtained on the basis of empirical expressions for the structural functions of wind speed in the upper troposphere. It was shown that in the range of scales of 20-150 km, the calculated average K ed values are in better agreement with the theoretical Golitsyn curve, and for large scales, with the Richardson -Obukhov curve [4].…”

“…The essence of the method described in detail in [4] is to use the inhomogeneities in concentration of water vapor as a conservative impurity as a tracer and to use correlation-extreme algorithms. The results of measurements of the SEVIRI radiometer of the second generation European geostationary meteorological satellites for the period 2007-2018 in the water vapor channel 6.2 microns with high temporal (15 min) and spatial (3-6 km) resolution are used as initial information.…”

“…The main calculated characteristic is the coefficient of horizontal mesoscale turbulent diffusion K ed , calculated on the basis of the analysis of spatial and spatio-temporal structural functions of the radiation field received by a satellite radiometer. A priori error in calculating K ed lies in the range (3.2-6.4)•10 3 m 2 /s [4]. To validate the values determined by satellite data, the results of [7] were used, in which an analytical description of the coefficient of relative turbulent diffusion was obtained on the basis of empirical expressions for the structural functions of wind speed in the upper troposphere.…”

“…Therefore, satellite methods can play a significant role in solving this problem. The method developed to determine the characteristics of at-mospheric movements from measurements of geostationary meteorological satellites [4,5] allows us to establish not only the field of the wind velocity vector, but also the coefficient of mesoscale turbulent diffusion and vorticity on the same scale of air mass movement. This article briefly describes a method for determining the characteristics of turbulence zones in the upper troposphere, explores their spatiotemporal variability in the time interval 2007-2018, the relationship of turbulence zones with the characteristics of jet stream and the temperature of the troposphere as an important climatic parameter.…”

Satellite radiothermovision of atmospheric mesoscale processes: case study of tropical cyclones

“…Conceptually close, but significantly different in the implementation is the approach (Nerushev and Kramchaninova, 2011) designed for the data of the Earth monitoring in the visible and infrared range from geostationary satellites. A known alternative to the authors' approach to interpret the data from polar-orbiting satellites as dynamic fields (Wimmers and Velden, 2011), advanced to the level of operational technology, has some fundamental differences that, in particular, may be source to some errors, as briefly discussed in the paper.…”