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Carlotta Maucher, Dumitru Vasilescu, Dr. Christoph Aubrecht, Jasmin Jilma |

Satellite Data for South-South and Triangular Cooperation: the ESA–UNOSSC Partnership

The European Space Agency (ESA) and the United Nations Office for South-South Cooperation (UNOSSC) are working together to help countries use satellite data to support sustainable development.

Satellite Earth Observation (EO) data can help governments make better decisions. It can monitor floods, track changes in forests and farmland, map cities, protect coastlines and improve disaster preparedness. These tools are becoming increasingly important as countries respond to climate change, rapid urbanization and growing development needs.

The challenge has not been the technology itself. It has been connecting these advanced tools with the decision makers in countries that need them most. Through their partnership, ESA and UNOSSC are helping bridge that gap by linking satellite expertise with national development priorities.

We Partner

ESA and UNOSSC combine their strengths to help countries use satellite data for planning, resilience and sustainable development.

ESA contributes technical expertise, satellite data services and nearly 20 years of experience supporting development through its Global Development Assistance programme, which has delivered more than 130 projects in over 80 countries. In 2026, this work became part of ESA’s new Earth Action programme.

UNOSSC brings its mandate to promote South-South and triangular cooperation. It works with governments, United Nations entities and development partners to connect countries with knowledge, expertise and practical solutions. Through platforms such as South-South Galaxy+, UNOSSC helps countries share experiences and build new partnerships.

Dima Al-Khatib, Director of UNOSSC

“Developing countries have clearly expressed the need for stronger data, technology, resilience and implementation support, including through the Antigua and Barbuda Agenda for SIDS, the Awaza Programme of Action for LLDCs, and the Doha Programme of Action for LDCs. Satellite EO offers a practical way to respond to these priorities. By connecting ESA’s world-class EO expertise with national needs in climate resilience, disaster risk reduction, urban planning, land systems, infrastructure and SDG implementation, we can help governments turn geospatial analytics and data capabilities into decision-ready tools for policy, planning and public investment. Through UNOSSC’s brokerage role, this partnership translates advanced EO capabilities into concrete South-South and triangular cooperation pathways. In doing so, we position EO not as a technology exercise, but as a practical enabler of intergovernmental mandates and nationally owned development priorities.”

The partnership combines ESA’s technical capabilities with UNOSSC’s global network of Member States, ensuring that satellite services reach the institutions that can put them into practice.

UNOSSC promotes South-South and triangular cooperation by bringing together countries, United Nations entities and partners to share knowledge, build partnerships and advance the Sustainable Development Goals. Through platforms such as South-South Galaxy+, trust funds and its coordination role across the United Nations system, it helps turn ideas into action.

Jasmin Jilma, ESA Graduate Trainee

“This partnership lets us engage directly with national stakeholders, who can express their policy demands, which enables the identification of Earth Observation capabilities needed to address them. It also builds collaboration between national institutions that can be used to strengthen capacity across the countries involved.”

We Listen

The partnership began by asking countries what they needed.

ESA and UNOSSC launched a joint Expression of Interest, inviting Member States to identify where satellite data could support national priorities. Twenty-eight countries responded.

Most requests focused on three thematic clusters:

  • Coastal, Marine and Blue Economy
  • Urban Growth, Land Systems and Infrastructure
  • Disaster Risk Reduction, Hydromet and Climate Resilience

Many countries also asked for training, technical support and opportunities to learn from one another – not just access to finished products.

Dumitru Vasilescu, Research Specialist at UNOSSC

“There is a very strong interest and demand from Member States in building capacity at the local level. There is very strong interest and demand from Member States in building capacity at the local level. At the same time, several countries have valuable experience and expertise that could potentially be shared with others. An important part of the next phase will therefore be identifying where these complementarities exist and how they can be translated into practical South-South and triangular cooperation.” 

ESA and UNOSSC reviewed each submission using common criteria, including national priorities, technical feasibility, potential impact and opportunities for collaboration between countries.

Rather than treating each request separately, ESA and UNOSSC grouped submissions around broad thematic areas where countries had expressed related development challenges. The clustering provides a starting point for exploring potential complementarities, opportunities for knowledge exchange and, where appropriate, joint activities. As the partnership moves into implementation, ESA and UNOSSC are working with participating countries to better understand where needs and technical requirements align and where more tailored country-level approaches may be necessary.

For the first phase in 2026, Colombia, Guatemala, Jamaica, Malaysia, Mauritius and Türkiye were selected to participate in joint pilot activities.

We Deliver

The partnership is already sharing knowledge and building awareness.

In June 2026, ESA’s Global Development Assistance programme hosted a public webinar on triangular cooperation and the role of satellite Earth Observation in sustainable development. The ESA-UNOSSC partnership was featured as a practical example of how countries can work together to apply satellite technology to real development challenges.

The webinar presented the results of the Expression of Interest process, highlighted the common priorities identified by Member States and introduced the satellite data services and tools available through ESA.

Figure 1: Screenshot from Webinar

What comes next?

The partnership is now entering its next phase. This phase will include further engagement with participating countries to refine their requirements, identify where needs genuinely overlap and determine where country-to-country exchange, joint learning or more tailored national support can provide the greatest value.

A key opportunity will be the Global Alliance for South-South and Triangular Cooperation, coordinated by UNOSSC. Officially launching on the United Nations Day for South-South Cooperation in September 2026, the Alliance will bring together governments, United Nations entities, academia, the private sector and other partners on a single platform.

Through the Global Alliance and South-South Galaxy, countries will be able to quickly identify development needs, connect with partners and access practical solutions. ESA is expected to become one of the Alliance’s partners, making its Earth Observation expertise more accessible to hundreds of organizations around the world.

UNOSSC and ESA also plan to:

  • Expand training and learning opportunities on Earth Observation.
  • Share case studies, datasets and good practices through South-South Galaxy.
  • Develop new pilot projects based on requests from developing countries.
  • Strengthen partnerships with United Nations agencies, development banks and other institutions to support implementation and financing.

The partners are also exploring a Joint Innovation Challenge to encourage organizations to co-design practical Earth Observation solutions for sustainable development.

Looking further ahead, the goal is to help countries secure long-term financing so that satellite-based tools become a regular part of national planning and decision-making, rather than one-time pilot projects.

Christoph Aubrecht, GDA Programme Coordinator at ESA

“What we’re trying to do at ESA, through the Earth Action programme is to translate EO information into decision-ready solutions that allow governments and development partners anticipate change and reduce risk. We see EO already being adopted at multiple levels, but we need to push further for mainstreaming in day to day operational processes to enable impact at scale.”

The success of the next phase will depend on whether today’s expressions of interest become country-led projects that deliver measurable results and can be adapted by other countries. If successful, the ESA-UNOSSC partnership will demonstrate how satellite data can become a practical tool for South-South and triangular cooperation, helping countries make better decisions and accelerate sustainable development.

Stay tuned for joint UNOSSC–ESA events at COP31.

Carlotta Maucher
Carlotta Maucher

Carlotta is a Manager in Funds & Programs at Caribou. She works at the intersection of geospatial data, development and humanitarian assistance. At the ESA Global Development Assistance program Carlotta supports the monitoring and evaluation activity and leads promotion and outreach efforts for initiatives in climate adaptation and finance, transport and infrastructure, and forest management.

Dumitru Vasilescu
Dumitru Vasilescu

Dumitru is a Knoweldge and Research Specialist at the United Nations Office for South-South Cooperation (UNOSSC). His background reflects a strong focus on sustainable development initiatives within the UN framework. At the UNOSSC, he contributes to enhancing policy, capacity development, innovation and knowledge management. His responsibilities include conducting research and generating insights to advance sustainable development goals.

Dr. Christoph Aubrecht
Dr. Christoph Aubrecht

Christoph manages the GDA programme at ESA. He joined ESA in 2016 and initially served as ESA Representative and Senior Advisor to the World Bank until 2020. He advised the Bank programmatically till end of 2021.

Jasmin Jilma
Jasmin Jilma

Jasmin joined the GDA team as a Graduate Trainee. In this role, she supports cross-cutting initiatives within the programme, with the aim of strengthening the use of EO in sustainable development. Jasmin holds an MSc in Risk and Disaster Science from University College London, where she specialised in geospatial data science and risk modelling.

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