Machine learning / GeoAI

Machine learning and GeoAI enable automated, large-scale, data-driven analysis of geospatial data and have become increasingly important tools in Earth science research. By supporting accurate, consistent, and automated mapping across large and complex regions, these methods strengthen our capacity to monitor Earth surface processes, fully exploit extensive remote sensing archives, and improve understanding of environmental change across space and time.

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Example of automated glacier-outline extraction using a combined CNN and OBIA approach. CNN-OBIA results (yellow) are compared with reference outlines (green), with clean-ice detections shown in blue. The method integrates multisource inputs, including Sentinel-2 false-colour imagery, Sentinel-1 coherence (A1), and a CNN-based supraglacial debris probability map (A2), illustrating how different data layers contribute to identifying glacier boundaries and challenging debris-covered zones.
Example of automated debris-covered glacier-outline extraction using a combined CNN and OBIA approach (A2) vs the manual inventory in the Manaslu study region (A1). A2: CNN derived supraglacial debris probability heatmap Photo: Daniel Thomas

About the method:

Machine learning and GeoAI enable automated, large-scale analysis of geospatial data, allowing efficient detection, mapping, and monitoring of surface features and processes that are difficult and time-consuming to identify using traditional methods. 

In particular, deep learning approaches—most notably convolutional neural networks (CNNs)—are well suited for learning subtle spectral, spatial, and contextual patterns from remote sensing data.  Once trained, these models can reliably identify and map a wide range of Earth surface features. This includes distinguishing clean ice from debris-covered glaciers, detecting rock glaciers and moraines with complex textures, identifying crevasses and flow structures, and characterizing snow and ice properties such as extent, roughness, or surface condition. 

By integrating information across multiple data sources and spatial scales, these models are especially effective in heterogeneous and challenging environments where traditional mapping approaches are impractical or infeasible.

Machine learning and GeoAI significantly enhance our ability to monitor Earth surface processes, exploit extensive remote sensing archives, and improve understanding of environmental change across space and time.

 

Last updated: 15.12.2025