Opady atmosferyczne na stacji Łódź-Lublinek podczas adwekcji arktycznych mas powietrza
Precipitation at the Łódź-Lublinek station during the advection of Arctic air masses

Summary/Abstract: To analyse the precipitation conditions at the Łódź-Lublinek station during Arctic air-mass advection (AAMA),a modified Geb method for determining Arctic air masses was used. This study examined how AAMA affects precipitationat Łódź-Lublinek station. The precipitation during AAMA is favoured by cyclonic circulation from a north-western direction.The Arctic air-mass advection from this direction is most often associated with a low-pressure system located north-east fromthe borders of Poland. The highest number of precipitation incidents during AAMA, in comparison to all cases, was observedfrom November to December and March to April, while the lowest was from May to August. The 6-hour precipitation duringAAMA was lower in all months compared to precipitation that occurred under other air-masses types. This is due to the lowwater content in the relatively colder Arctic air masses in all seasons of the year. The low temperature of Arctic air masses alsoaffects low precipitable water over central Europe. Among all precipitation cases related to AAMA, the lowest deviationsin the precipitable water in the atmosphere and temperature were found in winter.

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