Whilst some regions already provide a robust supply of surface-based observations, some areas of the world, notably Small Island Developing States (SIDS) and Least Developed Countries (LDCs) significantly lack the infrastructure and capacity to meet GBON requirements, including for sustained operation and maintenance of the network. According to the WMO Global Gap Analysis conducted in June 2023, to achieve the GBON target of about 2600 weather stations (surface and upper air stations) in these countries, about 2000 stations need to be rehabilitated or newly installed and sustainably operated.
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