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Our solutions, seen from space

Poseira: Satellites in service of the ocean

With Poseira (formerly Plastic-i), a British Earth observation specialist, we track floating debris from space. Satellite imagery and artificial intelligence reveal where pollution accumulates, season after season, allowing us to deploy our Mobulas to the right locations.

Density map of satellite-detected floating debris along the coast of Sabah, Malaysia
Floating debris detected along the coast of Sabah, 2022 to 2025. The warmer the colour, the higher the density.
Analysis by The SeaCleaners Swiss, Poseira data.

How it works

Observe, detect, target

1

Observe

European Sentinel satellites capture images of the sea every few days. Each pixel covers 10 by 10 metres.

2

Detect

Poseira's artificial intelligence detects slicks of floating debris, even through clouds.

3

Map

Month after month, density maps highlight recurring debris accumulation areas.

4

Act

Our teams target pollution hotspots and monitor their trends year after year.

Map of recurring floating debris zones in Kota Kinabalu Bay
Areas where debris consistently recurs in Kota Kinabalu Bay, across combined rainy seasons. Analysis by The SeaCleaners Swiss, Poseira data.

Our study in Sabah, 2017 to 2025

9 years of satellite imagery to understand Kota Kinabalu Bay

We commissioned Poseira to conduct a pioneering analysis: 9 years of satellite archives covering Kota Kinabalu Bay and the entire coast of Sabah, Malaysia. For the first time, alongside our partner Marine Research Foundation, the daily cleanup efforts of Mobula 8.2 are integrated into a statewide pollution map.

  • ✓Where floating debris accumulates and returns
  • ✓When pollution risk peaks, month by month
  • ✓An independent baseline to measure our future impact

Key study figures

What the satellites reveal

11,500

satellite images analysed

From 2017 to 2025, despite frequent and heavy cloud cover in Sabah.

88%

of debris concentrated in 5% of the bay

In Kota Kinabalu Bay, detected pollution is concentrated in just a few areas: targeting these hotspots makes every cleanup mission more effective.

3 times

the Sabah average in Semporna

On the east coast, Semporna stands out significantly: a priority area to investigate on the ground for a future deployment.

For full transparency: satellites detect floating debris without always distinguishing plastic from drift wood or natural vegetation. We therefore cross-reference these maps with onboard sorting data from the Mobula, sharing only what the data conclusively demonstrates.

In the field

What this changes for our expeditions

Targeting hotspots

The Mobula focuses its operations where debris returns, retrieving more waste during each cleanup day.

Seasonal planning

During the northeast monsoon in November and December, debris slicks are longer: we intensify our collection efforts accordingly.

Preparing next steps

Mapping of Sabah guides the selection of our next operational areas, which are always confirmed through on-site scoping missions with our local partners.

Full report

The study report, upon request

Our comprehensive report is available in English and French. Partners, donors, researchers, or journalists: feel free to contact us, and we will gladly send you a copy.

Seeing further to act with greater precision

Every donation helps us turn these data into meaningful action on the water. Thank you for being part of this journey!