seasonal forecast

The display panel will show alternately weather forecast of48 hours, present weather conditions, 24 solar terms notice and seasonal weather knowledge.

显示屏每天不仅滚动发布48小时天气预报、即时天气实况、24节气信息，还结合季节有针对性地播发气象知识。

Finally, the predictability of seasonal forecast of temperature and precipitation is discussed, including effectiveness and accuracy.

最后, 讨论了季平均气温和季总降水的可预报性问题, 即时效性和准确率.

Finally, the predictability of short term climate forecast is discussed, and it is pointed out that the theoretical limit of the lead time in monthly and seasonal scale prediction is about 6 12 months and that of the accuracy ( P) is 80% 85%.

文中探讨了短期气候预测的可预报性问题，提出月、季尺度气候预测的可预报性的理论上限可能为6～12月，准确率在80%～85%之间。

Establishment of the Holt-Winter forecast model could make decomposing study on time series which has linear trend, seasonal change and random wave, and separately estimate the long-term trend, increase of trend and seasonal wave with combining the exponential smoothing.

建立Holt-Winter预测模型，将具有线性趋势、季节变动和随机波动的时间序列进行分解研究，并与指数平滑法相结合，分别对长期趋势、趋势的增量和季节波动做出估计。

Establishment and Solution About Forecast Model of City Gas Seasonal Load

城市燃气季节性负荷预测模型的建立及求解