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Applications of nonlinear optimization methods to quantifying the predictability of a nume

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Applications of nonlinear optimization methods to quantifying the predictability of a numerical model

for El Nino-Southern Oscillation

DUAN Wansuo;MU Mu

【期刊名称】《自然科学进展(英文版)》 【年(卷),期】2005(015)010

【摘要】The nonlinear optimization methods are applied to quantify the predictability of a numerical model for El Nino-Southern Oscillation (ENSO). We establish a lower bound of maximum predictability time for the model ENSO events (i. e. ENSO events in the numerical model), an upper bound of maximum prediction error, and a lower bound of maximum allowable initial error, all of which poENSO event and support the previous views on SPB. Additionally, we also explore the differences between the linear evolution of prediction error and its nonlinear counterpart. The results demonstrate the limitation of linear estimation of prediction error. All these above resuits suggest that the nonlinear optimization method is one of the useful tools of quantifying the predictability of the numerical model for ENSO. 【总页数】7页(915-921)

【关键词】ENSO model;nonlinear;optimization;predictability 【作者】DUAN Wansuo;MU Mu

【作者单位】LASG, Institute of Atmospheric Physics, Chinese Academy

Applications of nonlinear optimization methods to quantifying the predictability of a nume

ApplicationsofnonlinearoptimizationmethodstoquantifyingthepredictabilityofanumericalmodelforElNino-SouthernOscillationDUANWansuo;MUMu【期刊名称】《自然科学进展(英文
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