Przyszłe zmiany wybranych wskaźników klimatycznych dla Polski na podstawie wyników dynamicznego downscalingu

Abstract

The paper shows the expected changes in selected climatic indices on the basis of the results of dynamic downscaling for the 2041-2070 period with regard to the 1971-2000 period in the Polish territory. Results of the EURO CORDEX simulations with a resolution of 50 km and 12.5 km and regional models HIRHAM5, RACMO22E and the RCA4 driven by EC EARTH global climate model and RCP4.5 and RCP8.5 scenarios have been used. The maps showing absolute differences in the following climatic indices: number of frost days, ice days, summer days, wet days and days with precipitation exceeding 10 and 20 mm, between the values obtained in the scenarios and the values obtained for the reference period have been analysed. All the model results show an increase in the global temperature resulting in a decrease in the number of frost and ice days and an increase in the number of summer days. The models also show an increase in the frequency of extreme precipitation. Despite general similarities between the results of the simulations, some differences are evident, mainly due to model-specific setup.

Modelling the Hydrology of an Upland Catchment of Bystra River in 2050 Climate Using RCP 4.5 and RCP 8.5 Emission Scenario Forecasts

“…The purpose of this article is to prepare an appropriate SWAT model and to study spatial assessment of hydrological indices obtained in three varied climate projections for two representative concentration pathways (RCPs) in order to analyze differences in the results of regional climate models based on the same global climate model [19]. These models are characterized by different parameterization of physical processes while running on the same spatial domain, covering the European continent, and benefiting from the boundary and initial conditions of the same global model (EC-EARTH).…”