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Relative air humidity and saturation deficit in Leba

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The main aim of the paper was to determine the most important features of air humidity in Łeba in the years 1976-2005. The average daily values of relative air humidity (RH) and saturation deficit (SD) from the meteorological station in Łeba were used as basic data for the survey. After initial estimation of dispersion parameters and asymmetry of distribution, these values were calculated for annual and multi-annual periods. The survey findings showed that in Łeba the humidity of air in the analysed period was relatively high (with mean annual RH and SD values – 82.8% and 2.1 hPa respectively). The highest mean air humidity is normally reported in winter months (with maximum in December), while relatively low humidity values are recorded in the warm half-year (Apr.-Sep.). The provided analysis of long-term variability in monthly and annual averages has shown a decreasing trend of air humidity in the region of Łeba. Such conclusion is proved by statistically significant tendencies: growing of moisture deficit and dropping of relative air humidity. The greatest fall in air humidity within the 30-yr period was found in April; while rise was noted only in May. The greatest diversification of mean monthly air humidity values are typical for the period between April and July; the most stable higric conditions are usually recorded in December.
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This paper presents results of floristic investigation in the town Łeba. In 2002-2004 and 2006 vegetation seasons 66 interesting and rare vascular plants were found. Among them there are 31 species protected by law (21 strictly and 10 partially) (Rozporządzenie… 2004) and 7 (Drosera anglica, D. intermedia, D. rotundifolia, Dryopteris cristata, Linaria odora, Lycopodiella inundata and Salsola kali) are included in “Red Lists” of threatened vascular plants in Poland, Western Pomerania and Wielkopolska (Zarzycki and Szeląg 2006, śukowski and Jackowiak 1995). 22 species belong to the group of threatened species in the scale of the Gdańskie Pomerania (Markowski and Buliński 2004). According to “Red List” one of them is endangered (EN) – Lycopodiella inundata; 11 species are vulnerable (VU) – Cymbalaria muralis, Drosera anglica, D. intermedia, Epipactis atrorubens, Erica tetralix, Glaux maritima, Linaria odora, Myrica gale, Nepeta cataria, Salsola kali and Triglochin maritimum.
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The climate of Łeba

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Quickly developing tourist infrastructure of Łeba, including the needs of the city as a health resort and a perfect place for holiday at any time of the year, requires an elaboration of the comprehen-sive climatic characteristics. Taking into consideration the needs of the typical holiday makers and people with respiratory, circulatory and rheumatic diseases or metabolic disorders, elaboration of an appropriate description of the local climatic conditions in one of the most often visited spa on the Polish sea coast is more and more crucial. Daily meteorological data from the IMGW weather station in Łeba for the period 1986-2005 were the basis for this paper. The climatological analysis, besides the characteristics of the air tempera- ture and precipitation, includes the distribution of other principal meteorological elements (pres-sure, wind, sunshine hours, cloudiness, relative humidity) and the frequency of weather phenom-ena (fogs, storms).
In the article was taken an issue of the tourist opinion on the tourist activity and perception of two selected middle coastal towns Ustka and Łeba. The results show that both towns were visited by the tourists coming from all parts of Poland. The travels were most often organized independently by car with accommodation in private rooms and boarding houses. The most attractive elements for tourists in both towns were indicated the elements directly linked with theirs location as sea, dunes, lighthouses, festival and events or pier.
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