Chemical composition of a concretion dredged from lake Madüsee (lake Miedwie, Poland)

This article describes the bottom sediments, lake ores and limestone bedrock dredged from lake Mad¸see in Pommerania now known as lake Miedwie in Poland.

Investigation of Manganese rich river pebbles from Poland and Austria

The author is studying various manganese coated river pebbles which had been given to him for evaluating their chemical properties. Samples were provided for the confluence of the Vistula and the Dunajec river in Poland by Mr. W. Petraschek. Other samples had been acquired earlier from Pr. A. Fraunhofer in the river bed of the Enns river near the town of Ernsthofen in Austria.

Application of WRF-Chem to Forecasting PM10 Concentration Over Poland

The meteorological and chemical transport model WRF-Chem was implemented to forecast PM10 concentrations over Poland. WRF-Chem version 3.5 was configured with three one-way nested domains using the GFS meteorological data and the TNO MACC II emissions. The 48 hour forecasts were run for each day of the winter and summer period of 2014 and there is only a small decrease in model performance for winter with respect to forecast lead time. The model in general captures the variability in observed PM10 concentrations for most of the stations. However, for some locations and specific episodes, the model performance is poor and the results cannot yet be used by official authorities. We argue that a higher resolution sector-based emission data will be helpful for this analysis in connection with a focus on planetary boundary layer processes in WRF-Chem and their impact on the initial distribution of emissions on both time and space.