Annual data compilation of the water balance observation in the regional hydrogeological study project (RHS project). Monitoring data from the fiscal year 2004 to 2007

At the Tono Geoscience Center, the subsurface water balance observation has been carried out in order to estimate groundwater recharge rate for setting the upper boundary conditions on groundwater flow simulation and to obtain data for the calibration of the hydrogeological model. In the water balance observations, precipitation metrological data for the estimation of evapotranspiration, river flow rate, and groundwater table and soil moisture have been observed in the Tono mine area, the Garaishi river area and the Hiyoshi river area. The missed data and data error in the monitoring data from the fiscal year 2004 to 2007 were complemented or corrected the data was compiled in data set. Both of the observation data and compiled data are included in the data set, and the data set is recorded on CD-ROM. A CD-ROM is attached as an appendix. (J.P.N.)