Reviewing 10 years of openSenseMap - the open environmental data platform for (GI)Science, Education and Participation

Abstract. Since its launch in 2014, openSenseMap has become a widely used platform for citizen science and environmental sensing. Over the past decade, it has enabled real-time data collection, visualization, and analysis through an open sensor network. This paper reflects on its evolution, technical advancements, and impact on geospatial research. We discuss challenges in managing an open geospatial infrastructure at scale and introduce the next-generation openSenseMap, which enhances data quality, interoperability, and usability. By sharing lessons learned and future directions, we underscore its role in participatory environmental monitoring and geographic information science.