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ESA BIOMASS satellite with deployable P-band radar for forest monitoring

ESA BIOMASS Mission: 2026 Data Revolution for Carbon Tracking

•3 min read
'Satellites''Remote Sensing''Carbon Markets'

ESA's BIOMASS satellite, which launched on April 29, 2025, is now fully operational and delivering revolutionary forest monitoring data in 2026. Carrying the first spaceborne P-band synthetic aperture radar with a massive 12-meter diameter antenna, this mission represents the most consequential remote-sensing upgrade since Sentinel-2 for forest carbon teams, project developers, and policy makers.

Why BIOMASS Matters

  • True above-ground biomass (AGB) retrieval: P-band penetrates canopy layers, improving AGB estimates in dense tropical forests.
  • Global wall-to-wall coverage: Five-year mission delivers consistent time series for loss, gain, and degradation signals.
  • Better MRV: Higher-confidence data tightens baselines and reduces uncertainty for carbon projects.

Mission Timeline and Current Status

  • April 29, 2025: Successful launch via Vega-C rocket into Sun-Synchronous Orbit at 666 km altitude
  • May 7, 2025: 12-meter diameter radar antenna fully deployed
  • June 23, 2025: ESA unveiled first images at Living Planet Symposium
  • November 20, 2025: In-Orbit Commissioning Phase completed
  • November 21, 2025: Tomographic phase began—an experimental phase during the first year of operations
  • 2026 onward: Full global coverage expected within 18 months, then one complete global map every nine months

What the Data Will Deliver

  • Hectare-scale resolution: 200 m resolution biomass products with unprecedented 3D forest mapping capabilities for tropical, temperate, and boreal forests.
  • Change detection: Improved degradation signals beyond clear-cuts—selective logging, storm damage, and partial forest loss become measurable.
  • Calibration stack: On-the-ground plots and airborne LiDAR campaigns (NASA GEDI legacy) anchor the retrieval models.
  • Canopy penetration: P-band's 70 cm wavelength penetrates all forest canopy layers to see branches and trunks where most biomass is stored.

How to Prepare Your Projects

  • Align baselines: Revisit forest reference levels with BIOMASS data as it becomes available; plan for recalibration windows.
  • Uncertainty management: Use P-band plus existing Sentinel/Landsat optical to reduce error bars in verification reports.
  • Permanence monitoring: Pair BIOMASS time series with local alerts to document natural disturbance and recovery.

Downstream Impacts

  • Carbon markets: Tighter MRV should reward high-integrity projects and expose inflated crediting.
  • Policy: Supports REDD+ stocktakes and national greenhouse gas inventories with consistent global data.
  • Risk: P-band is sensitive to ionospheric effects—expect early products to improve as calibration matures.

Operational Considerations

Geographic Limitations: To obtain regulatory exemption from restrictions on space-based P-band radars, ESA agreed to turn off the BIOMASS radar over North America and Europe to avoid interfering with missile-detection systems. This means primary coverage focuses on tropical and boreal forests outside these regions.

Mission Duration: The five-year mission will provide consistent data through 2030, with global coverage updates every nine months after the initial 18-month baseline is established.

2026 Outlook

The BIOMASS mission marks a new era for forest monitoring. With the satellite now operational and first data products released, 2026 is the year to integrate P-band data into your MRV stack. Teams that move first will have cleaner audits, stronger market credibility, and more accurate carbon accounting as the mission reaches full operational capability.