Asst. Prof. Robert Bialik, head of the Department of Antarctic Biology at the PAS Institute of Biochemistry and Biophysics, talks about the Henryk Arctowski Polish Antarctic Station on King George Island.

O Polskiej Stacji Antarktycznej im. Henryka Arctowskiego na Wyspie Króla Jerzego mówi dr hab. Robert Bialik, kierownik Zakładu Biologii Antarktyki Instytutu Biochemii i Biofizyki PAN.

O Polskiej Stacji Antarktycznej im. Henryka Arctowskiego na Wyspie Króla Jerzego mówi dr hab. Robert Bialik, kierownik Zakładu Biologii An tarktyki Instytutu Biochemii i Biofizyki PAN.

This paper presents a unique case study and methodology for measurements of the bedload transport in the two, newly created troughs at the forefield of the Baranowski Glacier: Fosa and Siodło creeks. The weather conditions and the granulometric analysis are presented and discussed briefly. Rating curves for the Fosa and Siodło creeks are presented for the first time for this region. Changes of the bedload transport as well as water discharge and water velocity at both creeks are investigated. The hysteresis for the relationships between rate of bedload transport and water discharges were identified showing that for both creeks for the higher water levels a figure of eight loop may be easily recognized. Moreover, a new method for the calculation of bedload transport rate, based on the weighted arithmetic mean instead of the arithmetic mean, is proposed.

Meteorological conditions at Arctowski Station during 2013–2017 were presented against the background of regional climate changes, especially air temperature decline. Air temperature, relative air humidity, air pressure, solar radiation, wind speed and direction, snow cover and precipitation were collected with an automatic weather station and manual measurements and were further analysed. The obtained results were compared with data from previous years and with data from other stations located on King George Island. Our observations confirm that the vicinity of Arctowski Station experienced a decrease in air temperature during summer, which supports the hypothesis of regional cooling.