An Analysis on Jump of "5. 5" Sandstorm in Gansu Province

The subject is to study an example of special sandstorm occurred in Gansu province viith recursive similarity. The jump was defined as the level that the preceding numbers of R data could not completely describe the present state. The results indicated that every element violent wave at 16 o'clock was not the larger jump value in recursive similarity,the larger values were occurred before 16 o'clock. At last,The formal abrupt and essential abrupt were presented.

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