Groundwater recharge Dry period (1971-1973)

Groundwater recharge from precipitation is a residual component of the water balance. It is described as the proportion of precipitation height reduced by the actual evaporation and rapid outflow component. The groundwater recharge rates shown in the map are the result of modelling with qualitatively different input data. In each case, the best data basis available throughout Bavaria was used in order to be able to make the most uniform statements possible across the entire country. Therefore, data sets from different scale ranges were used together for modelling. Examples are, on the one hand, the highly generalized soil survey map on a scale of 1:1,000,000 and, on the other hand, the detailed digital terrain model in a 50 m grid. Furthermore, we worked with data, some of which can also show significant regional differences in quality (e.g. groundwater level, regionalized station data of the various climate parameters). Therefore, the map sheet "Groundwater recharge dry period (1971-1973)" represents a large-scale overview and allows a description of the regional conditions appropriate to the scale 1:500,000. The use of the grid-related individual values for detailed statements is methodologically not permitted.