The Forecast of Dekad Temperature Abnormal of China in Winter

The routine meteorological fields were expanded by use Chebyshev Polynomials.The coefficients of them could represent the main characteristics of meteorological fields.Using them as factors,the forecast equations for dekad temperature abnormal of China in winter were established.The result indicated that this method was useful to the forecast of temperature abnormal.On the other hand,the relativity between each level data and temperature was discussed.

Chebyshev Expansion,temperature abnormal of dekad,objective forecast

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