N2 - This paper presents a solution that utilises ultrasonic technology to allow monitoring snow layer thickness or water level based on measurement from air. It describes the principle of operation of a measurement device using three methods of compensating for changing external factors affecting appliance’s precision. Block diagram of the device is also provided. In order to verify the proposed solutions, the research team tested the device in laboratory and operating conditions. The results obtained this way make it possible to select a configuration of device operation depending on the required measurement precision and limitations associated with installing the system for actual operation. L1 - http://www.czasopisma.pan.pl/Content/101510/PDF/15-paper.pdf L2 - http://www.czasopisma.pan.pl/Content/101510 PY - 2013 IS - No 1 EP - 135 DO - 10.2478/aoa-2013-0015 KW - ultrasonic methods KW - snow layer KW - monitoring of environmental risk A1 - Gudra, Tadeusz A1 - Banasiak, Dariusz A1 - Herman, Krzysztof A1 - Opieliński, Krzysztof PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 38 DA - 2013 T1 - Ultrasonic Method for Monitoring Environmental Risks Associated with Precipitation SP - 125 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/101510 T2 - Archives of Acoustics