| 北半球三层准地转波谱模式 |
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| 引用本文： | 郑庆林.北半球三层准地转波谱模式[J].Acta Meteorologica Sinica,1979,37(1):36-43. |
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| 作者姓名： | 郑庆林 |
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| 作者单位： | 中央气象局气象科学研究院天气气候研究所 |
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| 摘 要： | 文中,非线性项的处理用了变维方法,纬向的“完全的谱方法”及经向的“准谱方法”,既有利于克服非线性不稳定,且能大大节省计算量及存储量,使之能在小型计算机上实现其程序设计。通过设计多个地形曲面的办法来考虑地形的作用。在时间差分格式中,将时间步长取成波数的函数,有利于节省计算量。这模式从一九七四年九月开始进行了较多个例的预报实验,其72小时以内的预报效果是比较好的。
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| 收稿时间： | 5/9/1978 12:00:00 AM |
A THREE-LEVEL FILTERED SPECTRAL MODEL FOR NORTHERN HEMISPHERE |
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| Zheng Qing-lin.A THREE-LEVEL FILTERED SPECTRAL MODEL FOR NORTHERN HEMISPHERE[J].Acta Meteorologica Sinica,1979,37(1):36-43. |
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| Authors: | Zheng Qing-lin |
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| Affiliation: | Research Institute of Weather and Climate, Central Meteorological Service |
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| Abstract: | A three-level filtered spectral forecast model including orography has been developed, using the difference method, vertically, the degradation of dimensionality, and a perfect spectral method latitudinally and pseudo-spectral methods longitudinally. The wave numbers taken along the parallels and the meridians are 15 and 13 respectively. In time integration, the time step is taken as a function of wave number. Since september in 1974,a number of examples have been computed, with fairly good results. |
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