Voor de operationele temperatuur- en vochtmetingen is het KNMI begin jaren negentig van de 20ste ...
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As a result of a new WMO regulation, KNMI lowered its thermometer screens around 1960 from 2.20 t...
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In this experiment we compared two types of (commercially available) Hellmann manual rain gauges ...
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Volcano observatories (VOs) around the world are required to maintain surveillance of their volca...
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