The article presents results of air temperature measurements carried out at weather station located at the foot of Three Crowns (Trzy Korony) in the area of Pieniny National Park. The aim of the authors was to compile and evaluate basic meteorological data, i.e. air temperature, obtained from 30-year long monitoring. Weather station at Podłaźce was established in 1993 at the foot of Three Crowns (Trzy Korony) as a base and control point for automatic climate monitoring in the Pieniny National Park in order to record possible climate changes caused by the construction of Czorsztyn-Niedzica dam. Continuous measurements are taken there in a Stevenson screen to provide homogeneity of the climatic sequence. The study discusses basic thermal indicators in relation to climate change and measurement carried out in this area as well as provides data for publications and research carried by authors and other institutions. The results show a noticeable deviation of values towards warm years starting from 2012 onwards, with two exceptions to this trend in 2017 and 2021. The analysis of average decadal and monthly temperatures and the occurrence of extreme values presents no significant changes in time. The frequency of very warm days tends to remain at a level above 50 per year (only the years 2003 and 2018 deviate from this generalization). There is a decrease in cool days after 2014. Winter is the fastest-warming season and warm winter days happened more often over analized 30 years.
Land-use change analysis is a key tool for studying the effects of planning and economic-political decisions on land-use. The aim of this study was to identify land-use changes in the Straconka district of Bielsko-Biała (southern Poland) using GIS tools. Historical and contemporary orthophotomaps of study area were analysed. Five land use classes were included: roads, loose buildings, compact buildings, green areas, forest areas. The significant changes in the urbanisation of the once typical village, now an integral district of the city of Bielsko-Biała, were demonstrated. In the period from 1998 to 2022, the area of compact development has clearly increased - from 23.2 to 31.2%. A consequence of the urbanisation development was also an increase in the length of hardened traffic routes - from 21.7 to 35.3 km. Due to the densification of development, the proportion of the area occupied by loose housing decreased. Urbanisation has also resulted in a reduction in the area of green spaces - from 27.4 to 14.6%. These were used as meadows for livestock feed. At present, with few exceptions, they are not used for agriculture. They are often areas of a recreational nature, but are just as often subject to uncontrolled forest succession. Forest areas have slightly increased their share in the spatial development structure of the district - from 46 to 49%. This is the result of both forest recovery and deliberate forest cultivation.
Frequent exceedances of permissible PM10 concentrations occur mainly during the so-called heating season and are readily noticed not only by environmental protection specialists but al-so by residents; they are also wildly discussed in the mass media. If the state of elevated concentrations persists for at least several hours, it is generally referred to as smog. The duration of smog can range from several hours to several days, causing an increase in morbidity and in the number of deaths. The paper presents the air-sanitary situation in Krościenko nad Dunajcem using the air quality indicator as the concentration of particulate matter PM10. Krościenko is a Carpathian town located in the valley of the Dunajec river. Such a topo-climatic location is conducive to the occurrence of frequent temperature inversions, stagnant cold air and poor ventilation, which results in the concentration of local emissions mainly from domestic boilers. The research period covered the years 2018-2022 of continuous daily D24 PM10 measurements. Preliminary comparisons of annual concentrations with selected cities located in mountainous and foothill areas of southern Poland indicated the aerosanitary problem of Krościenko. In all analyzed years, the daily norms were exceeded from 46 days in 2022 to 91 days in 2018. This situation occurs as a result of the low-stack emission during the heating period and the poor topoclimatic conditions in Krościenko. However, there is a visible downward trend in concentrations over the analyzed period, which may have resulted from the gradual reduction of the use of fossil fuels.
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