| This program permits the display of barograms, speedograms and variograms as well as polar curves. |
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| One takes suitable glide-path sections from one or more barograms to provide the necessary polar-curve co-ordinates. |
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| The instruments at the Kew, Observatory confirm those at Greenwich, and if further confirmation were required it can be had from the barograms at many other places in England. |
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| Short, dispersive wave trains were also typical for barograms and seismograms from atmospheric nuclear explosions, well documented in the literature. |
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