Barometer

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Schematic drawin o a semple mercur barometer wi vertical mercur column an reservoir at base

A barometer is a scienteefic instrument uised in meteorology tae meisur atmospheric pressur. Pressur tendency can forecast short term chynges in the wather. Numerous meisurments o air pressur are uised within surface wather analysis tae help find surface troughs, heich pressur seestems, an frontal boondaries.