Abstract

In 2010–2012, the hydrogeological model (HM) of Latvia (LAMO) was established by the scientists of Riga Technical University (RTU). LAMO is run by the commercial program Groundwater Vistas (GV). LAMO has generalized the geological and hydrogeological data that were provided for the active groundwater zone by the Latvian Environment, Geology and Meteorology Centre (LEGMC). In 2013–2014, LAMO was notably upgraded and a large amount of real hydrogeological data were added. In 2015, new improvements of LAMO were accomplished. The size of HM plane approximation step was reduced twofold (from 500 meters to 250 meters), the base flows of rivers were calibrated by using the hydrological data of measured river streams, and the permeability maps of HM aquifers were refined. The present paper describes the essence of the new updates.

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