In recent decades, the advent in geoinformation technology has played an increasingly important role in determining various parameters that characterize the Earth's environment. These technologies often combined with conventional field surveying and spatial data analysis methods and/or simulation process models provide efficient means for monitoring and understanding Earth’s environment in a cost-effective and systematic manner. This session invites contributions focusing on modern open-source software tools developed to facilitate the analysis of mainly geospatial data in any branch of geosciences for the purpose of better understanding Earth’s natural environment. We encourage the contribution of any kind of open source tools, including those that are built on top of global used commercial GIS solutions. Potential topics for the session include the presentation of software tools developed for displaying, processing and analysing geospatial data and modern cloud webGIS platforms and services used for geographical data analysis and cartographic purposes. We also welcome contributions that focus on presenting tools that make use of parallel processing on high performance computers (HPC) and graphic processing units (GPUs) and also on simulation process models applied in any field of geosciences.