Monday, March 10, 2025

Evaluation and visualization of long earth observation time series

 Suggested byMartin Sudmanns, Dirk Tiede

Examples of long Earth observation time series. Visualization capabilities are usually on a lower level than the analytical capabilities. 

Short description

Long-term Earth observation data provide valuable insights into environmental changes, particularly in sensitive regions like the Alps. Visualizing and analysing these data dynamically can help better understand temporal trends and support environmental monitoring. For example, Essential Climate Variables (ECVs), such as vegetation indices or snow cover, are key indicators for assessing the impacts of climate change in mountainous regions and require data for multiple decades.

 The objective of this thesis is to evaluate and visualize long EO time series using the Sen2Cube.at which is a semantic data cube that enables the analysis of large volumes of EO. The work can be summarized into the following key points:

  • Developing dynamic visualizations of long EO time series to highlight temporal trends in selected ECVs for the Alpine region.
  • Using Sen2Cube.at queries to efficiently extract and analyze semantic data related to ECVs, such as vegetation health or snow cover dynamics.
  • Demonstrating the applicability of the approach through case studies of key climate variables in specific Alpine areas.

This master thesis workflow will provide innovative tools for environmental monitoring, offering dynamic and accessible visualizations of climate-related changes that can be used to support decision-making in the Alpine region.

Suggested reading

Sudmanns, M., Augustin, H., van der Meer, L., Baraldi, A., & Tiede, D. (2021). The Austrian semantic EO data cube infrastructure. Remote Sensing13(23), 4807. https://www.mdpi.com/2072-4292/13/23/4807

Start

As soon as possible

Prerequisites/qualification

++ interest in the topic
+ programming skills
+ Earth observation
+ Experience or willingness to get familiar with (3D) visualisation engines (Blender, unity, …)

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