According to the 2022 report on the State of Food Security and Nutrition in the World, the number of people facing chronic hunger, jumped from around 618 million in 2019 to 769 million in 2021. The impacts of climate change and recent crises, such as the COVID-19 pandemic and extreme weather events, have a profound impact on food systems around the world.
With the increasing likelihood that we will exceed the 1.5C limit and even surpass the 2C limit, climate-related disasters will continue to exacerbate an already critical food situation.
This is where WorldCereal, a global and seasonal crop and irrigation mapping system, comes in. WorldCereal provides highly accurate seasonally updated cropland and crop-type maps at 10-metre spatial resolution at a global scale.
Simonetta Cheli, ESA's Director of Earth Observation Programmes, comments, "As the first worldwide platform of its kind, WorldCereal is another powerful example of space delivering smart solutions to some of the biggest challenges we face today. With our data and applications, we are moving more and more from measuring and monitoring to managing and mitigating global risks."
The system can generate a range of seasonal products, including global temporary crop extent, seasonal maize and cereal maps, seasonal irrigation maps and seasonal active cropland maps.
Focusing on maize and cereals, this detailed view of agriculture - made freely available - will help monitor agricultural production around the world.
WorldCereal provides a vital tool for policymakers, international organisations and researchers to better understand global crop and irrigation patterns, as well as inform decision-making related to food security and sustainable agriculture.
It can be used by entities such as the UN Food and Agriculture Organisation (FAO), who will be able to access the crop-specific information to fill gaps in their agricultural statistics. The data can show countries where the areas of maize and cereal have been estimated and to aid country reporting activities.
Jose Rosero Moncayo, Director of the Statistics Division at FAO, comments, "In a world where we still have data gaps at country level in fundamental areas of agricultural statistics such as area planted and agricultural production, FAO see the products generated by the WorldCereal project with great excitement.
Data quality and timeliness are crucial to foster evidence-based decision-making. We look forward to integrate this innovative, dynamic system in support of country reporting processes on crops, irrigation and land use statistics alike."
Other users of the system would include global, regional and national agricultural monitoring bodies, national entities involved in SDG reporting, other UN organisations such as the World Food Programme, insurance companies and the private sector, among others.
The WorldCereal system utilises open and free data from the Copernicus Sentinel satellites, including Sentinel-1 and Sentinel-2, as well as data from the USGS' Landsat satellites, combined with meteorological and in situ data.
The system takes advantage of the high-spatial and temporal resolution of satellite imagery and demonstrates how open-source Earth observation data can help to achieve food security.
Zoltan Szantoi, Land Application Scientist at ESA, explains: "The WorldCereal system is not just a demonstration of the power of integrating remote sensing, machine learning and large amounts of data. Rather, it represents a step towards realising the timely provision of agricultural production and yield estimates, critical for food security planning."
Related Links
WorldCereal at ESA
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