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Systematic meteorological observations |
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All countries are responsible under international regulations for maintaining
systematic and reliable measurements of weather and the atmosphere. For
this purpose, each country has a National Meteorological Service. The measurements
are supposed to be carried out simultaneously and regularly and transmitted
immediately to the international telecommunication network. Wind direction
and speed, visibility, air and soil temperature, humidity, solar radiation,
cloudiness, cloud base, atmospheric pressure and precipitation are the
essential variables to be measured. Every country is obliged to produce
real-time data for international use and is also permitted to use the information
produced in other countries. The system that collects, analyses and distributes
weather and other environmental information throughout the world, is called
World Weather Watch (WWW)
which comprises the Global Observing, Telecommunication and Data Processing
Systems.
The national meteorological services are continuously working to support the weather and climate monitoring for their own country and the WWW. The production of the required data is inadequate in many developing countries due to the lack of stations, personnel and international telecommunications.
Systematic meteorological observations in pdf-format |
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