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Satellite monitoring and remote sensing 

Tree-Nation uses satellite monitoring and remote sensing to track project development over time, ensuring that on-the-ground activities are reflected in measurable ecosystem changes.

1. What we monitor

Remote sensing allows us to observe changes in vegetation and land conditions across all project areas.

We primarily track:

  • Vegetation development (e.g. EVI – Enhanced Vegetation Index)

  • Changes in land cover and planting areas

  • Project evolution over time through satellite imagery

This provides a consistent and scalable way to monitor all projects globally.

2. How it fits into verification

Remote sensing is a core component of Tree-Nation’s verification system.

It complements:

  • Geo-tagged planting evidence and project reporting

  • On-site verification where applicable

Together, these inputs form a continuous record of project performance, allowing us to verify that planting activities translate into real ecosystem development.

3. EVI as a scalable proxy

EVI (Enhanced Vegetation Index) is used to:

  • Track vegetation health and growth over time

  • Compare project areas before and after planting

  • Monitor trends across large areas consistently

EVI provides a reliable, independent proxy for vegetation development, especially at scale.

4. Aboveground Carbon (AGC) where applicable

For foundation certified projects Aboveground Carbon (AGC) approaches may be used to estimate carbon storage more precisely.

These approaches rely on:

  • Biomass-related datasets

  • Species-specific and regional parameters

  • Defined calculation frameworks

This allows for higher precision carbon estimation, while maintaining consistency with the broader monitoring system.

5. Continuous monitoring over time

Satellite data enables long-term tracking, not just one-time verification.

We monitor:

  • Early-stage establishment

  • Medium-term growth

  • Long-term ecosystem development

This ensures that projects are assessed based on real performance over time, not just initial implementation.

In summary

Tree-Nation combines:

  • Remote sensing (EVI and satellite imagery) for scalable monitoring

  • Project data and geo-tagged evidence for ground-level verification

  • AGC methodologies where applicable for higher precision

This creates a system where project performance is continuously tracked, comparable across regions, and grounded in observable data.