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Wyszukujesz frazę "cloudy days" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
The seasonal variability of the amount of global solar radiation reaching the ground in urban and rural areas on the example of Warsaw and Belsk
Autorzy:
Nelken, Kinga
Leziak, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/2107163.pdf
Data publikacji:
2016-02-19
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
global solar radiation
clear days
cloudy days
Warsaw
Belsk
Opis:
The aim of this paper is to determine the contemporary differences in the inflow of global solar radiation in Warsaw (urban station) and Belsk (rural station). the meteorological data used comprised daily sums of global solar radiation (in mJ•m-2) and the duration of sunshine (in hours) for the period 2008 2014. On clear days in spring and summer, the rural area receives more solar radiation in comparison to the urban area, whereas in autumn a reverse relationship occurs. On cloudy days in all seasons, the rural area receives more solar radiation than the urban area, and the relationship is the strongest in winter. Differences between urban and rural areas on cloudy days are smaller than those observed on clear days.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2016, 20, 4; 29-37
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pressure field over Europe and North Atlantic favourable for the occurrence of clear and cloudy days in Poland
Autorzy:
Żmudzka, Elwira
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2029446.pdf
Data publikacji:
2006-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
elear and cloudy days
Polska
pressure field
Europę and North A tlantic
Opis:
In this paper, results of research concerning circulation conditions favouring the occurrence of elear and cloudy days in Poland are presented. An analysis of the mean pressure field over North Atlantic and Europe on such days was performed, differences between the mean pressure on such days and the mean pressure from all the days of the period 1966-2000 were determined. The pressure field was characterised by mean daily values taken from grid nodes from the area with (p 30°-70°N and X 40°W-60°E (NCEP/NCAR database). The relation between the am ount of cloudiness over Poland and pressure was estim ated by means of linear correlation coefficient.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2006, 12; 55-65
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przebieg dobowy temperatury powietrza w dnach wybranych cyrków glacjalnych Uralu Polarnego
The daily air temperature course in the bottom of the selected glacier cirques in the Polar Ural
Autorzy:
Wałach, P.
Powiązania:
https://bibliotekanauki.pl/articles/260711.pdf
Data publikacji:
2008
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
dobowa temperatura powietrza
Ural Polarny
cyrk glacjalny
dni pochmurne
dni pogodne
daily air temperature
Polar Ural
glacier cirques
cloudy days
sunny days
Opis:
W pracy przedstawiono wyniki pomiarów meteorologicznych prowadzonych w sierpniu 2007 roku na Uralu Polarnym. Głównym celem badań było określenie zróżnicowania temperatury powietrza w zależ-ności od zaobserwowanych typów pogody. Przeanalizowano przebieg dobowy temperatury powietrza na wyso-kości 150 cm n.p.g. w dnach dwóch cyrków glacjalnych (zlodowaconym i niezlodowaconym), położonych na zbliżonej wysokości n.p.m. Stwierdzono, że największe wahania temperatury w cyrku zlodowaconym (Lodowiec Obruczewa) wystąpiły podczas dni z umiarkowanym zachmurzeniem i intensywnym napływem ciepłych mas powietrza z południo-zachodu. Z kolei w cyrku niezlodowaconym największe wahania temperatury pojawiły się podczas dni pogodnych..
The main aim of the following paper is to compare the course of daily air temperature in two different Polar Urals glacier cirques. One of them represents non-glaciated environment with buried ice under moraine and the second one, has still sufficient conditions to maintain the ice glacier (fig. 2). The analyses were based on fieldwork carried out in the central part of Polar Ural from 1 to 20 August 2007. The Hobo Pro Series micro data loggers were employed for this purpose. The measu-rements were set up in the standard time (UTC+5) and with 5 minute interval. The measurements of temperature were carried out on 150 cm a.g.l. On the basis of such measurements the course of daily air temperature was estimated for: clear (cloudiness <20%, 8 days), overcast (>80%, 6 days) and average cloudy (20-80%, 6 days) days. Furthermore, the synoptic maps of Polar Urals were employed in the following analysis. During whole period the anticyclonic situations with the center of high-pressure or high-pressure wedge were more frequent than cyclonic situation. In addition, the air mass flow from north and north-west were in the superiority. During entire season the average air temperature in non-glaciated cirque were higher than the value registered in the glacier cirque (fig. 4). It was concluded that averaged for clear (cloudiness <20%, 8 days), overcast (>80%, 6 days) and cloudy (20-80%, 6 days) days, course of daily air temperature was characterized by the highest amplitude during clear days. It was 5.2°C for Obruchev glacier and 6.1°C for non-glaciated cirque. The lowest values of air temperature during the days mentioned above were between six and seven o’clock (UTC+5) and figure out respectively: 3.9°C in the cirque glacier and 7.2°C in non-glaciated cirque (fig. 5). Subsequently, it was concluded that during the overcast days the course of daily air temperature was weakly expressed. The differences between measurement points figure out maximum 1.9°C. Furthermore, during the average cloudy days the air temperature was higher of about 3.3°C in the non-glaciated cirque than in Obruchev glacier. The biggest differences between the cirques under consideration appeared between 18-19 o’clock and figure out maximum 5.0°C (fig. 6).
Źródło:
Problemy Klimatologii Polarnej; 2008, 18; 171-180
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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