A MathematicaL Expression of the Relationship between the Time Series and the Shallow Groundwater Temperature near the. Water Table in Paddy Field
Kiyoshi Fukuda · THE JOURNAL OF THE JAPANESE ASSOCIATION OF GROUNDWATER HYDROLOGY · 1968
Using the FOURIER series, we obtained the theoretical equations, (3), (4) and (5) that showed the manthly average cyclic variation of the shallow groundwater temperature near the water table for a year. The values calculated by Eqs. (3), (4) and (5) were close to the observed ones as shown in Figs.2,3 and 4.