Peculiarities of homogeneous areas distribution within the fields of hydrometeorological characteristics in the Northern Pacific during the cold season
Journal Title: Український гідрометеорологічний журнал - Year 2016, Vol 17, Issue 17
Abstract
In order to investigate horizontal distribution of hydro-meteorological characteristics, statistical analysis techniques, including multidimensional statistical analysis techniques (for example, factor, cluster analysis etc.) are usually applied. These techniques allow obtaining not only fields of particular characteristic by means of plotting appropriate isolines, but determining entire homogeneous areas with typical representative point which helps to compress information considerably and to reveal boundaries of distribution of certain characteristic within the entire spatial aggregation. Schemes of zoning of fields of difference for monthly average temperatures “underlying surface-air” at 2 m height, of surface flows of latent heat, of zonal aspects of wind speed in the Northern Pacific obtained by means of the Universal Iterative Method of Data Clusterization are offered. The obtained clusterization schemes underwent both physical and statistical analyses having good scientific justification. It is shown that distribution of zonal aspect of wind speed has latitudinal direction, and distribution of flows of latent heat and temperature differences has mainly a focal nature. Analysis of variability of boundaries of homogeneous areas, average values of representative vectors, dispersions, mean-square deviations during future time intervals will allow identifying the specific features of climate variability through the example of the fields of hydrometeorological characteristics under study.
Authors and Affiliations
E. N. Serga
Brief overview of meteorological research in the late XX – early XXI century in Ukraine
In the paper the review of the meteorological research in Ukraine at the end of the 20-th century – the beginning of the 21-th century was made. Researches in the field of meteorology are performed mainly by the Ukrainia...
Calculation of wind speed in the 300-meter lower layer of the atmosphere based on the meteorological observations taking account of temperature stratification and surface roughness
Introduction. Taking into account relationship of wind profile power-law exponent (m) from hydrostatic stability of the layer and surface roughness the calculation method of wind speed and direction in the lower 300-mete...
Ukrainian segment of the ENTLN (LIGHTNING FINDING SYSTEM)
The Ukrainian segment of the Earth Networks lightning finding system created in 2016 is dis-cussed in the paper. It consists of 12 sensors located in different parts of Ukraine which allow identifying both types of light...
Spatio-temporal distribution of atmospheric precipitation in the Odesa region at the beginning of the 21st century
During the last decade of the 20th and at the beginning of the 21st century there was a need for a higher level of understanding of the climate system and development of opportunities to prevent climate change and, first...
Current state and tendencies of distribution of ground frosts within the territory of Ukraine
The purpose of this work consists in identifying the main trends of present-day formation and distribution of ground frosts throughout Ukraine. For this purpose the analysis of a minimum air temperature field has been co...