Causes and Course of Climate Change and Its Hydrological Consequences in the Greater Poland Region in 1951–2020

Quaestiones Geographicae

article

Andrzej A. Marsz¹  Leszek Sobkowiak²  Anna Styszyńska¹  Dariusz Wrzesiński² 

[1]Association of Polish Climatologists

[2]Department of Hydrology and Water Management, Adam Mickiewicz University in Poznań

关键词: rapid climate shift;    cause of warming up;    thermohaline circulation;    water balance;    Poland;    North Atlantic;   

DOI  :  10.14746/quageo-2022-0033

学科分类：医学（综合）

来源: Walter de Gruyter GmbH

【 摘 要 】

The paper presents effects of changes in climatic elements in the Greater Poland region (Poland), their causes and consequences for shaping the water balance of this area, copying with the most severe water deficit in Poland. The study period covers 70 years (1951–2020). The research identified an abrupt and significant change in the climate of Greater Poland, which started between 1987 and 1989, concerning not only air temperature but also a wider spectrum of climatic elements. The change in the state of the climate, which covers the entire Atlantic-Eurasian circulation sector, results from a sudden change in the macro-circulation conditions in the middle troposphere (500 hPa). The reason for the change in the mid-tropospheric circulation is an equally abrupt and simultaneous change in the intensity of the ocean heat transport by the North Atlantic thermohaline circulation (NA THC). Climate change observed in Greater Poland is manifested in an increase in sunshine duration (SD) and air temperature, a decrease in relative humidity, a change in the cloud structure, and an increase in the degree of sky coverage.

【 授权许可】

CC BY