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what constitutes a drought-definitions


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  • Location: just south of Doncaster, Sth Yorks
  • Location: just south of Doncaster, Sth Yorks

    For the record, an absolute drought is a period of 15 consecutive days none of which records more than 0.1 mm of rain

    A partial drought is a period of at least 29 days over which the mean daily rainfall does not exceed 0.2 mm; therefore a period of 29 days with a total rainfall of 5.8 mm would constitute a partial drought but 6.0 mm over the same period wouldn't.

    A dry spell is a period of at least 15 consecutive days none of which records more than 0.9 mm of rain.

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