Satellites to Measure Global Forest Biomass from Space

How much forest is there actually in the world? A new satellite with unique technology is to provide the answer. The hope is that the mapping will save the forests from climate change.

» Published: April 27 2025

Satellites to Measure Global Forest Biomass from Space
Photo: Rymdstyrelsen

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The satellite Biomass, which will be launched from Kourou in French Guiana on Tuesday, will be placed in orbit at an altitude of 600 kilometers. With the help of new technology that can penetrate tree canopies, the satellite will measure the biomass of forests, i.e. the total mass of all living forests across the entire planet.

"The goal is to understand how forests affect the climate and how climate change affects forests," says Lars Ulander, professor of radar remote sensing at Chalmers in Gothenburg, and one of the initiators of the project, in a press release.

Today's knowledge of how much carbon is stored in the world's forests and how it has changed over time is based on rough estimates that rely on indirect methods. With more accurate data, researchers can improve climate models and better understand the carbon cycle.

The satellite will continuously create global maps that will enable climate researchers to track changes and developments in the world's forests.

The first maps are expected to be available next year.

Launch: April 29

From: Kourou, French Guiana

Rocket: Vega-C

Orbit altitude: 600 km

Weight: 1.2 tons

Lifetime: At least 5 years

Unique feature of the satellite: Takes 3D images of forest biomass.

Source: The Swedish Space Agency

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By TTEnglish edition by Sweden Herald, adapted for local and international readers

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