How does WMO monitor global weather and climate?
• WMO undertakes this task through the National Meteorological and Hydrological Services of its Members which own and operate the systems for collecting, processing and analysing information from thousands of observation systems, including satellites and ships. WMO issues Annual Statements on the Status of the Global Climate. These statements document the extreme weather and climate events in the regional context and provide a historical perspective on the variability and trends of climate, particularly surface temperatures that have occurred since the 19th century. WMO is also working with the National Meteorological and Hydrological Services to develop climate change detection tools and software to compute indices that reflect the best estimate of climate trends within the countries. • 6. What is the difference between weather and climate? • Climate, in a narrow sense, can be defined as the average weather conditions for a particular location and period of time. In a wider sense, it
