Data for: A water temperature simulation model for rice paddies with variable water depths
Description
Supporting Information for A water temperature simulation model for rice paddies with variable water depths https://doi.org/10.1002/2017WR021019 This dataset provides a calculation sample of the simulation of water temperature with change in water depth, which conducted in the paper. The model simulation was conducted with water depths from 0 to 200 mm for three different air temperature levels (Tave=10, 20, and 30°C) vs. three different canopy densities (LAI=0.25, 1, and 4). The diurnal temperature ranges for each air temperature level were set at 10.8, 10.4, and 8.0°C, respectively. Daily mean values of water vapor pressure, solar radiation, and wind speed were set at eave = esat (Tmin), RSday=350 W m−2, and Uave=2 m s−1, respectively. The developmental stage and canopy height of the rice plants were set at corresponding values for each canopy density, i.e., Ps=0.35 and h=0.28 for LAI=0.25, Ps=0.5 and h=0.46 for LAI=1, and Ps=1 and h=1.06 for LAI=4, respectively. Another sample of calculations is a simulation of seasonal change in water temperature at the observation site SAITO in Japan. Observations were conducted from transplanting to harvest of rice in 2002. In this simulation, LAI and canopy height h are treated as inputs using observed values, but a model to estimate them is also included in the program code. In both simulations, the time step of the calculation is 1 hour. The calculation includes the spin-up of 5-day long to obtain the initial value of water temperature. This spin-up is not required after the second day in the simulation of seasonal change. The energy balances on the ground surface and the plant canopy are also calculated simultaneously with the water temperature. [Dataset] 1. CalculationSample: Simulation of water temperature with change in water depth 2. CalculationSample_SAITO: Simulation of seasonal change in water temperature (CSV files is input/output data, BAS files are VBA program codes, and XLSM file combines them into one to run the simulation.)