СИНОПТИЧЕСКАЯ СОСТАВЛЯЮЩАЯ МЕТЕОРОЛОГИЧЕСКИХ ЭЛЕМЕНТОВ НАД ЮЖНОЙ ЧАСТЬЮ БАЛТИЙСКОГО МОРЯ

Abstract

Based on field observations of air temperature Ta, relative humidity f (dew point temperature Td or water vapor elasticity ea), atmospheric pressure at sea level P0 and wind speed W at stations Arkona, Darss Sill and Fehmarn-Belt of the MARNET monitoring network of the German Oceanographic Datacentre for 2002–2020 with a discreteness of 1 hour, as well as on the offshore ice-resistant stationary platform of OOO LUKOIL – Kaliningradmorneft (D6) for 2004–2020 with a discreteness of 1 hour, estimates of the contributions of the short-term (consisting of irregular intradiurnal, regular daily variation, synoptic component) and long-term (consisting of irregular intra-annual, regular seasonal variation and inter-annual component) variability into the total temporal variability of the initial series of these meteorological elements. The influence of the location of the station and the nature of the meteorological element itself on the structures of the time series of meteorological elements in the southern part of the Baltic is shown. This confirms the stability of the conclusion obtained by many researchers of the temporal variability of hydrometeorological parameters for various zones and regions of the World Ocean. In this case, the relative (specific) contribution of synoptic variability for W, P0 and f is predominant for the entire initial series (47.6÷76.1%), and for Ta, Td and ea only for short-period variability (8.1÷17.7%). The intra-annual and inter-annual variability of the specific contribution of the synoptic component Ta, Td, f, ea, P0 and W are considered. Thus, the maximum contribution of the intra-annual synoptic variability is timed to September–November, and the minimum is noted in January–February. The annual range of the contribution of intra-annual synoptic variability for most stations varies from 12–38% for W and P0 to 36–38% for Ta.