Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Meteorologia" wg kryterium: Wszystkie pola


Wyświetlanie 1-5 z 5
Tytuł:
Wilgotnosc wzgledna powietrza w warunkach srodmiejskich
Autorzy:
Olszewski, K
Powiązania:
https://bibliotekanauki.pl/articles/2085587.pdf
Data publikacji:
1992
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
miasta
warunki meteorologiczne
meteorologia
wilgotnosc powietrza
Warszawa
wilgotnosc wzgledna
Opis:
Relative humidity takes not unworthy part in weather situations visibly conducive to growth of air pollution concentration. If it exceeds 70%, activation of SO₂ conversion can be observed, what in turn leads to hicher toxicity of this gas (fig. 1). It seems to be useful to make a through study of diurnal-yearly changes of relative humidity in the area of increased atmospheric pollution. Annual course of relative humidity has been calculated on the basis of an average for a ten year period (1961-1970) of mean daily values (fig. 2). The highest relative humidity occurs in the third decade of November (above 90%), and the lowest in mid June (about 60%). The threshold value of 70% remains common from the second decade of August until the beginning of April. Periods with increased humidity (f>70%) occur in cyclic (fig. 3). During the summer high humidity remains uninterruptedly not longer then two days, but in the winter it can remain most frequently for six to ten, or even for twenty six to thirty days. Values of relative humidity oscillate in range of 41 to 70% during the summer and 80 to 90% during the winter (fig. 4). Probability of relative humidity occurrence above 70% equals ca. 31% during the summer, but in the winter it can rise even to 84% (fig. 5).
Źródło:
Prace i Studia Geograficzne; 1992, 11; 115-122
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deformacja pól zmiennych meteorologicznych przez zabudowę w Warszawie
Autorzy:
Stopa-Boryczka, M
Powiązania:
https://bibliotekanauki.pl/articles/2085582.pdf
Data publikacji:
1992
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
warunki meteorologiczne
meteorologia
deformacja pol zmiennych
Warszawa
zabudowa miejska
Opis:
The paper presents the range of deformation of a field of meteorological variables under the influence of urban development. The threshold values of meteorological factors were defined, in extreme values of differences in thermal conditions between the city and its surroundings. The impact of temperature, cloudiness and wind velocity on the urban heat island was ascertained. The process and rate of heating up and cooling down ofa build up area was investigated. The results of the analysis show that, close up development in the center of Warsaw, deforms most of all the fields of meteorological variables: raises air tempetature, especially the minimal temperature for mean 5-year periods up to 1.9°C, and on individual years up to 2.6°C, and up to 9°C on individual days; reduces daily temperature range up to -2.1°C; reduces relative humidity up to -2%, increasing deficit of air humidity up to 0.4 hPa as well as cloudiness up to 4% and total precipitation up to 6%; reducing mean wind velocity to -1.3m/s. Urban heat island is strongly marked in the summer half-year, when air temperature outside urban area varies between 13° to 16°C. In the winter half year urban heat island is most weakly marked with tempetatures ranging from -2° to 1 °C, and most strongly when temperature drops below - 10°C. The decline of temperature difference between the urban area and its surroundings (ΔT=0) occurs when wind velocity is around 7m/s and cloudiness ca. 9/10, but largest differences occur (0.4° - 0.5°C) when cloudiness is ca. 5/10 also (0.6° - 0.7°C) with wind velocity between 2 - 2.5m/s. The knowledge of artificial background and the rules which effect the state of atmosphere depending on the season of the year, time of day and meteorological conditions can be used in forecasting man-made climate changes. Producing appropriate formulas (simple equations, parabolic, sinusoid and hypersurface of regression) and using measured meteorological values outside urban area one can estimate temperature, humidity, wind velocity differences etc. between the urban area and its surroundings. Thus so it is possible to forecast e.g. air temperature for real estates expanding cities or planed towns, sites where no meteorological measurements were made.
Źródło:
Prace i Studia Geograficzne; 1992, 11; 39-73
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wplyw zabudowy miejskiej na zmiennosc temperatury z dnia na dzien
Autorzy:
Kossowska-Cezak, U
Powiązania:
https://bibliotekanauki.pl/articles/2085593.pdf
Data publikacji:
1992
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
miasta
meteorologia
zmiennosc temperatury
Warszawa
zabudowa miejska
temperatura powietrza
Opis:
The purpose of the study is to obtain the answer to the question weather urban development has influence - and if so - on interdiurnal changes of air temperature. The answer is of considerable importance because many climatological stations, from which data for temperature changes studies comes from, are placed in towns. Data taken for the study were the daily values of mean daily temperature, maximum and minimum temperature for the 5 year period 1961-1965 from 5 climatological stations in Warsaw. The analyais of mean monthly values of temperature changes, frequency of changes of different size as well as course of temperature in chosen months has proved, that urban development most strongly influences interdiurnal changes of the minimal temperature, decreasing its average value and the frequency of appearance of extremely high changes. Such influence is most strongly observed in winter, when on the turn of spring and summer in the town's center interdiurnal changes of the maximum temperature may be a little higher. The influence of urban development on air temperature changes turned out to be dependent on the amount of cloudiness and wind velocity (bigger influence when smaller cloudiness and low wind velocity), and also from the direction of wind (larger changes on the windward side of the city).
Źródło:
Prace i Studia Geograficzne; 1992, 11; 95-114
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zaleznosc od pory dnia roznic temperatury powietrza miedzy miastem a otoczeniem
Autorzy:
Wawer, J
Powiązania:
https://bibliotekanauki.pl/articles/2085590.pdf
Data publikacji:
1992
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
miasta
warunki meteorologiczne
pory dnia
meteorologia
Warszawa
tereny podmiejskie
temperatura powietrza
Opis:
The study is an attempt to describe the formation of the urban heat island in Warsaw on different times of the day on the basis of three observation hours (7, 13, 21 h local time). To obtain this, daily data were used for the period 1961-65 from 5 meteorological stations. As a working material daily air temperature differences were used between urban stations and suburbs (station Warszawa-Okęcie as a relation point). Urban area has usually higher air temperature in relating to its surroundings, however opposite situations are possible: differences between urba stations and suburban ranged from +9ºC to -4ºC. The largest thermal differentiation between the towns on the season of the year. The highest positive differences (the highest intensity of the heat island) between the city and its surroundings related to high weather (small cloudiness, low wind velocity), and opposite istuations are joined with outwardly wind fro the city (north and East – suburban station on the leeward side). Frequency result ΔT ≥ 3.0ºC was evaluated for at least one urban station, and in every observation period. Differences of this kind mostly occur in the evening (21h), for approximately 12.2% days of the year, but their number depends on the weather conditions.
Źródło:
Prace i Studia Geograficzne; 1992, 11; 75-84
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dzienne zmiany roznic temperatury powietrza miedzy osiedlem z duzym udzialem zieleni a terenem pozamiejskim
Autorzy:
Mierzwinski, B
Powiązania:
https://bibliotekanauki.pl/articles/2085591.pdf
Data publikacji:
1992
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
zielen miejska
klimatologia
tereny miejskie
tereny pozamiejskie
meteorologia
zmiennosc temperatury
Warszawa
temperatura powietrza
Opis:
The paper describes temperature Differences Increment Tendency (DIT) in relation to time, between a housing estate with a lot of greens (sady Żoliborskie) and suburban area (Okęcie). For all analyzed typed of development, periods with negative values of DIT (observation period 7 AM to 9 PM) predominated periods with positive DIT. The largest negative values of temperature DIT (-0.4 to -0.6ºC per hour) were noted on high-storeyed development and plot (quarters) site development with North and South-East exposition, which were in shade in the period previous to maximum daily air temperature. The largest positive values of temperature DIT (to 0.2°C per hour) were found on plot (quarters) site development (South-West exposition) and high-storeyed development on sun-facing points in periods of maximum insolation. Values of temperature DIT near 0.0°C per hour, on evening hours, probably feature developed areas with a lot of greens.
Źródło:
Prace i Studia Geograficzne; 1992, 11; 85-94
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies