FPUTS seria Agricultura, Alimentaria, Piscaria et Zootechnica, 2011

Stały URI zbioru

https://oa.zut.edu.pl/handle/20.500.12539/746

Przeglądaj

Przeglądaj FPUTS seria Agricultura, Alimentaria, Piscaria et Zootechnica, 2011 wg Temat "analiza regresji"

Teraz wyświetlane 1 - 2 z 2
  • Miniatura
    PozycjaOpen Access
    Zastosowanie analizy harmonicznej do badania zmian temperatury powietrza w Szczecinie w cyklu rocznym
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2011) Gregorczyk, Andrzej; Michalska, Bożena; Katedra Agronomii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Meteorologii i Klimatologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
    The aim of the paper was to describe statistically changes of air temperature in the area around Szczecin over the years 1991–2000 and to apply for this purpose a time series of harmonic analysis in the annual cycle. On the basis of the original data, mean values of air temperature in Szczecin in individual months, standard errors and extreme values were shown. The mean air temperature in the studied decade (10 years) amounted to 9.03oC. A high significance of annual periodicity of the studied feature was proved. The mathematical model of temperature changes in the function of a successive day of the year was estimated. Very good matching of the harmonic curve to the real data (determination coefficient R2 = 0.993) was recorded.
  • Miniatura
    PozycjaOpen Access
    Zmienność opadów atmosferycznych w Szczecinie w cyklu rocznym w latach 1991–2000
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2011) Gregorczyk, Andrzej; Michalska, Bożena; Katedra Agronomii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Meteorologii i Klimatologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
    The aim of this study was statistical description of the rainfall changes in the vicinity of Szczecin in the years 1991–2000 and approximation of daily rainfall using the harmonic and polynomial functions. On the basis of original data, mean values of monthly rainfall and their standard deviations were shown. Mean annual rainfall amounts (total precipitation) in the studied decade (10 years) equaled 575 mm. The highest mean monthly rainfall was in July (76.3 mm), and the smallest – in October (32.7 mm). From both the mathematical models of daily rainfall as a function of day number of year more adequate was four-order polynomial (determination coefficient R2 = 0.822). There has been attempt to model the distribution of the rainy days number in selected 30-day month using the theoretical binomial distribution.