GeoMapApp (http://www.geomapapp.org) is a free, map-based data discovery and visualisation tool developed at Lamont-Doherty Earth Observatory that provides students and researchers alike with access to hundreds of built-in research-grade geoscience data sets. These cover geology, geophysics, geochemistry, cryospherics, and the environment. Recent additions include LiDAR elevation data for Cascadia volcanoes, and updated earthquake tables. Users can also import their own data sets.

Simple manipulation and analysis tools and engaging visualisations provide a useful platform with which to explore and interrogate geoscience data. For example, a versatile profiling tool provides instant access to data cross-sections. Contouring and 3-D views are also offered. Export options encourage students to include maps, visualisations, and data tables in their project reports and assignments as a means of backing up their claims with evidence-based support.

An expanded Save Session function allows educators to preserve a pre-loaded state of GeoMapApp. When shared with a class, the saved file allows every student to open GeoMapApp at exactly the same starting point from which to begin their data explorations.

A range of GeoMapApp learning modules is already available, hosted by SERC. For example, in one module, students analyse seafloor crustal age data to calculate spreading rates in different ocean basins.