The Space Economy for Sustainable Water Management

Satellite data, artificial intelligence, and ground infrastructure: the response to the global water crisis is taking shape from above.

The space economy as a partner in water management

The water crisis is increasingly visible: rivers running dry, aquifers severely depleted, prolonged droughts alternating with sudden floods. It is a global challenge that threatens not only people’s daily lives but also economic stability, geopolitical balance, and food security. Within this context, the space economy is emerging as a strategic ally. It spans everything from the development of space infrastructure (upstream) to the processing and application of data (downstream).

Thanks to Earth observation and a suite of satellite technologies integrated with artificial intelligence and ground-based sensors, space today provides concrete solutions to monitor, safeguard, and manage water more effectively.

Satellites: From Hidden Crisis to Prevention

According to NASA, the latest satellite measurements show that in many cases the global water crisis is “invisible” from the ground. Anomalies in aquifers or forests may go unnoticed locally, yet from space they are strikingly clear. One example is the GRACE-FO mission (Gravity Recovery and Climate Experiment Follow-On), led by NASA and the German Aerospace Center (DLR). These satellites measure Earth’s gravitational field to map soil moisture and underground reserves, making it possible to forecast extreme events weeks in advance. Italy is also playing a leading role. Through the COSMO-SkyMed program and the new IRIDE constellation, the Italian Space Agency (ASI) provides real-time data for environmental monitoring and civil protection, delivering vital information to help prevent crises and manage emergencies.

Water and Agriculture: Moving Towards Precision Irrigation

One of the sectors where the benefits of the space economy are most tangible is agriculture, which alone accounts for around 70 percent of global water consumption. In this field, a true revolution is underway: watering crops only where it is needed, when it is needed, and in exactly the right amount.

The TETI project (Earth Observation for the Early Estimation of Irrigation Needs), promoted by the Italian Space Agency (ASI) and CNR-IREA, combines satellite data and artificial intelligence into decision-support systems. These systems calculate crop water requirements and provide targeted recommendations to irrigation consortia and farmers. Similarly, the European DATI project (Digital Agriculture Technologies for Irrigation Efficiency) has shown that integrating drones, agro-meteorological stations, and satellite imagery can reduce agricultural water consumption by 15 to 20 percent without affecting crop yields. Tests conducted in Italy, Spain, France, Portugal, and Morocco confirmed the effectiveness of this approach.

In Italy, practical applications already exist. Platforms such as IRRINET in Emilia Romagna and IRRISAT in Campania deliver precise guidance to farmers via app or tablet, indicating when and how much to irrigate using satellite data.

Monitoring Water Quality and Reducing Losses

Beyond agriculture, the space economy also supports urban water management. Satellite-based techniques using soil moisture data, infrared thermal analysis, and radar interferometry can detect leaks in water networks, which are often responsible for massive waste, up to three billion cubic meters of water per year in Italy alone. In a recent workshop organized by the Italian Space Agency (ASI), estimates showed that intelligent use of these technologies could recover over seven billion cubic meters of water annually by reducing losses, increasing reserves, and improving irrigation efficiency.

Concrete Benefits: Prevention, Efficiency, and Economic Impact

The benefits of the space economy for sustainable water management are substantial. Satellite observation enables rapid alert systems for droughts and floods, allowing water consortia to plan resources in advance. Precision irrigation, integrating satellite imagery, climate models, and vegetation mapping, can achieve efficiency levels of up to 90 percent, compared with the 40 to 45 percent typical of traditional methods. The economic impact is also significant. According to SACE, in 2023 the final sales value of the European space industry reached 8.4 billion euros, a figure expected to grow in the coming years as both public and private demand continues to rise. 

Space and Earth: A Necessary Integration

While space provides innovative data and tools, their effectiveness depends on the ability to integrate them with efficient management of ground infrastructure. Dams, reservoirs, modern distribution networks, wastewater treatment plants, recycling systems, and desalination  facilities are all essential for turning satellite information into concrete action. 

In this context, industrial leaders such as Fisia Italimpianti, part of the Webuild Group, play a crucial role Fisia specializes in the design and construction of large-scale plants for desalination, water treatment, and recycling. Technologies that are vital for providing new water resources in regions affected by drought and water stress. The Webuild Group’s expertise is recognized globally. According to the Engineering News-Record (ENR) ranking, Webuild ranks first in the world in the water sector, highlighting Italy’s leadership in the construction of strategic water infrastructure. Only by combining a space-based perspective with informed local water management will it be possible to reduce losses, secure reliable water supplies, and address drought and climate change challenges with resilience.