Methods and algorithms for statistical processing of instantaneous meteorological parameters from ultrasonic measurements

[摘要] This paper describes a software system designed to support atmospheric studies with ultrasonic thermo-anemometer data processing. The system is capable of processing files containing sets of immediate values of temperature, three orthogonal wind velocity components, humidity, and pressure. The paper presents a technological scheme for selecting the necessary meteorological parameters depending on the observation time, the averaging interval, and the period between the immediate values. The data processing consists of three stages. At the initial stage, a query for the necessary meteorological parameters is executed. At the second stage, the system calculates the standard statistical characteristics of the meteorological fields, such as mean values, dispersion, standard deviation, asymmetric coefficients, kurtosis, correlation, etc. The third stage prepares to compute the atmospheric turbulence parameters. The system creates new arrays of data to process and calculate the second order statistical moments that are important for solving problems of atmospheric surface layer physics, predicting the pollutant dispersion in the atmosphere, etc. The calculation results are visualized and stored on a hard disk.

[发布机构] National Research Tomsk Polytechnic University, Tomsk, Russia^1;Institute of Monitoring of Climatic and Ecological Systems, SB RAS, Tomsk, Russia^2

[效力级别] 计算机科学

[关键词] Atmospheric surface layers;Meteorological fields;Meteorological parameters;Pollutant dispersions;Statistical characteristics;Statistical moments;Statistical processing;Technological scheme