Acta Scientiarum Polonorum
serie Formatio Circumiectus – Environmental Processes
RESEARCH PAPER
Modified formula for estimating the Bowen ratio – description of the determination procedure
1
Department of Applied Mathematics, The Faculty of Environmental Engineering and Geodesy, Wroclaw University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-357 Wroclaw, Poland
2
Secondary School Ursuline Sisters UR, pl. Nankiera 16, 50-140 Wrocław, Poland
Submission date: 2024-03-06
Acceptance date: 2024-03-08
Publication date: 2024-07-18
Acta Sci. Pol. Formatio Circumiectus 2024;23(2):3-10
HIGHLIGHTS
- W artykule pokazano, jak wykorzystując dane pomiarowe struktury bilansu cieplnego różnych roślin uprawnych wyprowadzić wzór szacujący współczynnik Bowena, który w kolejnym kroku można wykorzystać do oszacowania ewapotranspiracji.
KEYWORDS
TOPICS
ABSTRACT
Aim of the study:
One way of estimating evapotranspiration is to use the heat balance structure of active surface.
Material and methods:
The paper shows how to derive a formula estimating the Bowen ratio by using measurement data of heat balance structure of various crops, and in the next step, apply that ratio to estimate evapotranspiration. A two-stage method is described, in which the first step is to determine empirical index W, and the second step is to calculate the Bowen ratio. This allows the researcher to see the results in a graphic format, while searching for the best outcome, and to implement simple tools offered in spreadsheets.
Results and conclusions:
The obtained formulas made it possible to estimate evapotranspiration of agricultural crops with high accuracy in relation to the measured value.
One way of estimating evapotranspiration is to use the heat balance structure of active surface.
Material and methods:
The paper shows how to derive a formula estimating the Bowen ratio by using measurement data of heat balance structure of various crops, and in the next step, apply that ratio to estimate evapotranspiration. A two-stage method is described, in which the first step is to determine empirical index W, and the second step is to calculate the Bowen ratio. This allows the researcher to see the results in a graphic format, while searching for the best outcome, and to implement simple tools offered in spreadsheets.
Results and conclusions:
The obtained formulas made it possible to estimate evapotranspiration of agricultural crops with high accuracy in relation to the measured value.
| ISSN: | 1644-0765 |
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