Comparison of two methods of evapotranspiration calculation

• Autorzy: Hurtalova T. , Novak V. , Matejka F. , Sutor J.

Warianty tytułu

PL

Porównanie dwóch metod obliczania ewapotranspiracji

• Języki publikacji: EN

Abstrakty

EN

The values of the evapotranspiration calculated by the energy balance method were compared with corresponding results obtained by means of the EVASU model. Experimental data were obtained during NOPEX - First Concentrated Field Effort (CFE1). The CFE1 was realized in May-June 1994 in Lövsta, Sweden. The investigated vegetation were grass, spring barley, rye and winter wheat. Taking into account the accuracy of the both compared methods used for calculation of the evapotranspiration, the obtained results can be considered as very close in the interval of evapotranspiration rates between values 0.1 mm h⁻¹ and 0.5 mm h⁻¹.

PL

Porównano wartości ewapotranspiracji wyliczone metodą bilansu energii z wartościami uzyskanymi z modelu EVASU. Szatę roślinną stanowiły: trawy, jęczmień jary, żyto i pszenica ozima. Stwierdzono zbieżność wyników uzyskanych dwoma sposobami w zakresie przedziału ewapotranspiracji 0,1 - 0,5 mm h⁻¹.

Słowa kluczowe

EN

soil; evaporation; evapotranspiration; energy balance; EVASU model; crop canopy

• Wydawca: -
• Czasopismo: Zeszyty Problemowe Postępów Nauk Rolniczych
• Rocznik: 1996
• Tom: 436
• Opis fizyczny: p.75-79,fig.,ref.

Twórcy

autor

Hurtalova T.

• Geophysical Institute, Slovak Academy of Sciences, Dubravska cesta 9, 842 28 Bratislava, Slovak Republic

autor

Novak V.

• Institute of Hydrology, Slovak Academy of Sciences, Racianska 75, P.O.Box 14, 830 08 Bratislava, Slovak Republic

autor

Matejka F.

• Geophysical Institute, Slovak Academy of Sciences, Dubravska cesta 9, 842 28 Bratislava, Slovak Republic

autor

Sutor J.

• Institute of Hydrology, Slovak Academy of Sciences, Racianska 75, P.O.Box 14, 830 08 Bratislava, Slovak Republic

Bibliografia

• 1. Budagovskij A. I.: Isparenie pošvennych vod. Fizika pošvennych vod. Nauka, Moskva, 1981.
• 2. Hurtalová T.: Evapotranspiration of maize canopy in ontogenesis. Contr. Geophys. Inst. SAS, Ser. Meteorol., 10, 42 - 51, 1990.
• 3. Hurtalová T.: Evapotranspiration of winter wheat and sugar beet stands in ontogenesis. Contr. Inst. SAS, Ser. Meteoorol., 11, 28 - 40, 1991.
• 4. Hurtalová T., Moriconi M. L.: Characteristics of turbulent transfer in the maize stand-environment system. Z. Meteorol., 38, 6, 357 - 360, 1988.
• 5. Hurtalová T., Szabó T.: Die Abhängigkeit der Turbulenzcharakteristiken von der Temperaturschichtung der Atmosphäre. Z. Meteorol., 35, 6, 349 - 353, 1985.
• 6. Monteith J. L.: Evaporation and evironment. Symp. Soc. Exp. Biol., 29, 205 - 234, 1965.
• 7. Novák V.: Estimation of soil-water extraction patterns by roots. Agric. Water Manag., 12, 271 - 278, 1987.
• 8. Novák V.: Calculation of evapotranspiration daily totals by the modified Penman’s type method. Vodohosp. Čas., 37, 1, 113 - 129, 1989.
• 9. Novák V.: Evaporation of water and methods of its estimation (in Slovak). VEDA, Bratislava, 1995.
• 10. Novák V., Hurtalová T.: Method of estimation of velocity coefficient of turbulent water transport to calculate potential evapotranspiration (in Slovak). Vodohosp. Čas., 35, 1, 3 - 21, 1987.
• 11. Penman H. L.: Evaporation: An introductory survey. Neth. J. Agric. Sci, 4, 9 - 29, 1956.
• 12. Ritchie J. T.: Model for predicting evaporation from a row crop with incomplete cover. Water Resour. Res., 8, 1203 - 1213, 1972.