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Modeling, Forecasting

Analysis of Scientific Data to Project Thawing of Permafrost

The video demonstrates the value of a Discrete Global Grid System (DGGS), a data-agnostic information grid that allows users to aquire and integrate data from various sources at any location on a virtual globe and at any resolution. The data sources, which can be real-time or archived, include any geospatial information source, such as earth observation data, social and economic data and/or statistics, as well as conventional GIS feature and coverage data. In particular, the overlay of socio-economic data with earth observation data is a powerful feature that helps in understanding and optimizing many processes on earth.

The DGGS allows users to calculate new data values as expressions, to select and refine data values to answer questions such as "Where is it?" and to aggregate data values to answer questions such as "What is here?"

All data is accessed through OGC Web Feature Services or OGC Web Coverage Services. Both services provide actual data, preserving all attributes of the original data sources. This allows rich calculations and analysis directly in the client application. The DGGS fuses all data sets on the fly, independently of the resolution, location, or original map projection.

In this video, the change in permafrost distribution is forecast for the coming decades. Starting with the actual distribution of permafrost, the future extent is calculated and the visualized using time sliders. Eventually, the consequences of climate change are emphasized by overlaying with socio-economic and wildlife data, showing that critical infrastructure and migration paths are at risk of drowning in a thawing ground.