LEIBNIZ INSTITUT FUER TROPOSPHAERENFORSCHUNG e.V.

Their core work

TROPOS is a German research institute focused on atmospheric science — specifically aerosols, clouds, and trace gases in the troposphere. They operate and develop measurement infrastructure for monitoring air quality, atmospheric composition, and climate-relevant particles across Europe and beyond. Their work spans from fundamental cloud physics and aerosol nucleation research to applied air quality forecasting, pollution source identification, and health impact assessment. They are a core partner in ACTRIS, Europe's flagship distributed research infrastructure for atmospheric observation.

What they specialise in

How they've shifted over time

In the early H2020 period (2015–2018), TROPOS focused on fundamental atmospheric science — aerosol nucleation mechanisms, organic compound volatility, and building the preparatory groundwork for the ACTRIS infrastructure. From 2019 onward, their work shifted decisively toward operational research infrastructure (ACTRIS implementation, sustainable access models) and applied outcomes like urban air quality policy, pollution source apportionment, and health impacts of particulate matter. The trajectory shows a clear move from "understanding atmospheric processes" toward "delivering atmospheric monitoring as a service."

TROPOS is transitioning from a pure research institute toward an operational infrastructure provider, making them increasingly relevant for partners who need access to atmospheric measurement facilities and air quality data services.

How they like to work

TROPOS overwhelmingly operates as a consortium partner (13 of 14 projects), coordinating only one small-scale project (STEP, EUR 175K). They work comfortably in large multi-country consortia — 185 unique partners across 42 countries signals a very broad, non-exclusive network. This is the profile of a reliable specialist contributor that brings deep technical capability and infrastructure access without seeking project leadership, making them a low-risk, high-value addition to any atmospheric science consortium.

With 185 unique consortium partners across 42 countries, TROPOS has one of the broadest collaborative networks in European atmospheric science. Their reach extends well beyond Europe into Latin America (PAPILA) and Africa (SEACRIFOG), reflecting the global nature of atmospheric monitoring.

What sets them apart

TROPOS sits at the intersection of atmospheric fundamental research and operational monitoring infrastructure — a combination few institutes maintain at this level. As a core ACTRIS partner from preparatory phase through implementation, they offer direct access to Europe's premier aerosol, cloud, and trace gas measurement network. For any consortium needing atmospheric data, simulation chambers, or air quality expertise, TROPOS brings both the science and the instruments.

Highlights from their portfolio

• EXCELSIOR
  Their largest single EC contribution (EUR 1.09M) across a long-running Widening project (2019–2027), connecting atmospheric ground truth with satellite-based Earth surveillance.
• ACTRIS IMP
  The implementation phase of Europe's flagship atmospheric research infrastructure (ESFRI roadmap), where TROPOS helps build the ERIC governance and service catalogue.
• STEP
  Their only coordinated project — a focused cloud physics study on entrainment, revealing their core scientific identity beyond infrastructure work.